initial import

186 files changed, 5954 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/Dist b/sysdeps/unix/sysv/Dist
new file mode 100644
index 0000000000..f70fcf6728
--- /dev/null
+++ b/sysdeps/unix/sysv/Dist
@@ -0,0 +1,3 @@
+sysv_termio.h
+utmp.h
+s_getdents.S
diff --git a/sysdeps/unix/sysv/Makefile b/sysdeps/unix/sysv/Makefile
new file mode 100644
index 0000000000..b40766035d
--- /dev/null
+++ b/sysdeps/unix/sysv/Makefile
@@ -0,0 +1,42 @@
+# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License
+# as published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+ifeq ($(subdir), misc)
+
+sysdep_headers := $(sysdep_headers) termio.h
+generated := $(generated) termio.h
+
+# termio.h is just like sysv_termio.h except it uses the same names for
+# everything that System V termio does.  sysv_termio.h is necessary to
+# include in __tcgetatr.c et al, because some of the names in termio.h
+# conflict with termios.h.  The C library doesn't actually use termio.h,
+# but we generate it for those application programs which use it.
+$(objpfx)termio.h: $(..)sysdeps/unix/sysv/sysv_termio.h
+	sed < $< > $@-tmp			\
+	    -e 's/_SYSV_//'			\
+	    -e 's/^#define[ 	]*_T/#define T/'\
+	    -e 's/__sysv_termio/termio/'
+	mv $@-tmp $@
+
+endif
+
+ifeq ($(subdir),dirent)
+
+sysdep_routines := $(sysdep_routines) s_getdents
+
+endif
diff --git a/sysdeps/unix/sysv/alarm.S b/sysdeps/unix/sysv/alarm.S
new file mode 100644
index 0000000000..6c002d4ccb
--- /dev/null
+++ b/sysdeps/unix/sysv/alarm.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (alarm, 1)
+	ret
diff --git a/sysdeps/unix/sysv/direct.h b/sysdeps/unix/sysv/direct.h
new file mode 100644
index 0000000000..dc1d77beed
--- /dev/null
+++ b/sysdeps/unix/sysv/direct.h
@@ -0,0 +1,10 @@
+struct direct
+  {
+    unsigned short int d_fileno;
+    char d_name[14];
+  };
+
+#define D_NAMLEN(d) \
+  ((d)->d_name[13] == '\0' ? strlen ((d)->d_name) : 14)
+
+#define D_RECLEN(d) (sizeof (*(d)))
diff --git a/sysdeps/unix/sysv/fcntlbits.h b/sysdeps/unix/sysv/fcntlbits.h
new file mode 100644
index 0000000000..d7dbd0c20a
--- /dev/null
+++ b/sysdeps/unix/sysv/fcntlbits.h
@@ -0,0 +1,86 @@
+/* O_*, F_*, FD_* bit values for System V.
+Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_FCNTLBITS_H
+
+#define	_FCNTLBITS_H	1
+
+
+/* File access modes for `open' and `fcntl'.  */
+#define	O_RDONLY	0	/* Open read-only.  */
+#define	O_WRONLY	1	/* Open write-only.  */
+#define	O_RDWR		2	/* Open read/write.  */
+
+
+/* Bits OR'd into the second argument to open.  */
+#define	O_CREAT		00400	/* Create file if it doesn't exist.  */
+#define	O_EXCL		02000	/* Fail if file already exists.  */
+#define	O_TRUNC		01000	/* Truncate file to zero length.  */
+#if	defined (__USE_BSD) || defined (__USE_SVID)
+#define	O_SYNC		00020	/* Synchronous writes.  */
+#endif
+
+/* File status flags for `open' and `fcntl'.  */
+#define	O_APPEND	000010	/* Writes append to the file.  */
+#define	O_NONBLOCK	000004	/* Non-blocking I/O.  */
+
+#ifdef __USE_BSD
+/* System V doesn't support POSIX.1 O_NONBLOCK, but O_NDELAY is close.  */
+#define	O_NDELAY	O_NONBLOCK
+#endif
+
+/* Mask for file access modes.  This is system-dependent in case
+   some system ever wants to define some other flavor of access.  */
+#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
+
+/* Values for the second argument to `fcntl'.  */
+#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
+#define	F_GETFD		1	/* Get file descriptor flags.  */
+#define	F_SETFD		2	/* Set file descriptor flags.  */
+#define	F_GETFL		3	/* Get file status flags.  */
+#define	F_SETFL		4	/* Set file status flags.  */
+#define	F_GETLK		5	/* Get record locking info.  */
+#define	F_SETLK		6	/* Set record locking info.  */
+#define	F_SETLKW	7	/* Set record locking info, wait.  */
+
+/* File descriptor flags used with F_GETFD and F_SETFD.  */
+#define	FD_CLOEXEC	1	/* Close on exec.  */
+
+
+#include <gnu/types.h>
+
+/* The structure describing an advisory lock.  This is the type of the third
+   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    short int l_sysid;	/* System ID where locking process resides. */
+    short int l_pid;	/* Process holding the lock.  */
+  };
+
+/* Values for the `l_type' field of a `struct flock'.  */
+#define	F_RDLCK	1	/* Read lock.  */
+#define	F_WRLCK	2	/* Write lock.  */
+#define	F_UNLCK	3	/* Remove lock.  */
+
+
+#endif	/* fcntlbits.h */
diff --git a/sysdeps/unix/sysv/getdents.c b/sysdeps/unix/sysv/getdents.c
new file mode 100644
index 0000000000..bb6c812647
--- /dev/null
+++ b/sysdeps/unix/sysv/getdents.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+extern int __getdents __P ((int fd, char *buf, size_t nbytes));
+
+int
+DEFUN(__getdirentries, (fd, buf, nbytes, basep),
+      int fd AND char *buf AND size_t nbytes AND off_t *basep)
+{
+  if (basep)
+    *basep = __lseek (fd, (off_t) 0, SEEK_CUR);
+
+  return __getdents (fd, buf, nbytes);
+}
+
+weak_alias (__getdirentries, getdirentries)
diff --git a/sysdeps/unix/sysv/gethostname.c b/sysdeps/unix/sysv/gethostname.c
new file mode 100644
index 0000000000..509a3da1d9
--- /dev/null
+++ b/sysdeps/unix/sysv/gethostname.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+
+/* Put the name of the current host in no more than LEN bytes of NAME.
+   The result is null-terminated if LEN is large enough for the full
+   name and the terminator.  */
+int
+DEFUN(__gethostname, (name, len),
+      char *name AND size_t len)
+{
+  struct utsname buf;
+  if (uname (&buf))
+    return -1;
+  strncpy (name, buf.nodename, len);
+  return 0;
+}
+
+weak_alias (__gethostname, gethostname)
diff --git a/sysdeps/unix/sysv/i386/linux/socket.S b/sysdeps/unix/sysv/i386/linux/socket.S
new file mode 100644
index 0000000000..9f59bad095
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/socket.S
@@ -0,0 +1,55 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+.globl syscall_error
+
+/* The socket-oriented system calls are handled unusally in Linux.
+   They are all gated through the single `socketcall' system call number.
+   `socketcall' takes two arguments: the first is the subcode, specifying
+   which socket function is being called; and the second is a pointer to
+   the arguments to specific function.
+
+   The .S files for the other calls just #define socket and #include this.  */
+
+ENTRY (socket)
+
+	/* Save registers.  */
+	pushl %ebx
+	pushl %ecx
+
+	movl $__NR_socketcall, %eax	/* System call number in %eax.  */
+
+	/* Use ## so `socket' is a separate token that might be #define'd.  */
+	movl $SYS_##socket, %ebx	/* Subcode is first arg to syscall.  */
+	lea 12(%esp), %ecx		/* Address of args in 2nd arg.  */
+
+        /* Do the system call trap.  */
+	int $0x80
+
+	/* Restore registers.  */
+	popl %ecx
+	popl %ebx
+
+	/* %eax is < 0 if there was an error.  */
+	testl %eax, %eax
+	jl syscall_error
+
+	/* Successful; return the syscall's value.  */
+	ret
diff --git a/sysdeps/unix/sysv/i386/linux/sysdep.S b/sysdeps/unix/sysv/i386/linux/sysdep.S
new file mode 100644
index 0000000000..ed3a2782a9
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/sysdep.S
@@ -0,0 +1,38 @@
+/* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+#define _ERRNO_H
+#include <errnos.h>
+
+/* We jump here when a system call gets an error.
+   The error number is negated in %eax.  */
+.globl syscall_error
+syscall_error:
+	negl %eax		/* Make it positive.  */
+#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
+	/* We translate the system's EWOULDBLOCK error into EAGAIN.
+	   The GNU C library always defines EWOULDBLOCK==EAGAIN.
+	   EWOULDBLOCK_sys is the original number.  */
+	cmpl %eax, $EWOULDBLOCK_sys /* Is it the old EWOULDBLOCK?  */
+	jne 0f			/* Branch if not.  */
+	move $EAGAIN, %eax	/* Yes; translate it to EAGAIN.  */
+#endif
+0:	movl %eax, _errno	/* Store it in `errno'.  */
+	move $-1, %eax		/* Return -1.  */
+	ret
diff --git a/sysdeps/unix/sysv/i386/linux/sysdep.h b/sysdeps/unix/sysv/i386/linux/sysdep.h
new file mode 100644
index 0000000000..298a0e4c5b
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/sysdep.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdeps/unix/sysdep.h>
+
+#define	ENTRY(name)							      \
+  .globl _##name;							      \
+  .align 2;								      \
+  _##name##:
+
+#define	PSEUDO(name, syscall_name, args)				      \
+  .text;								      \
+  .globl syscall_error;							      \
+  ENTRY (name)								      \
+    XCHG_##args
+    movl $SYS_##syscall_name, %eax;					      \
+    int $0x80;								      \
+    test %eax, %eax;							      \
+    jl syscall_error;							      \
+    XCHG_##args
+
+/* Linux takes system call arguments in registers:
+   	1: %ebx
+	2: %ecx
+	3: %edx
+	4: %esi
+	5: %edi
+   We put the arguments into registers from the stack,
+   and save the registers, by using the 386 `xchg' instruction
+   to swap the values in both directions.  */
+
+#define	XCHG_0	/* No arguments to frob.  */
+#define	XCHG_1	xchg 8(%esp), %ebx; XCHG_0
+#define	XCHG_2	xchg 12(%esp), %ecx; XCHG_1
+#define	XCHG_3	xchg 16(%esp), %edx; XCHG_2
+#define	XCHG_4	xchg 20(%esp), %esi; XCHG_3
+#define	XCHG_5	xchg 24(%esp), %edi; XCHG_3
+
+#define	r0		%eax	/* Normal return-value register.  */
+#define	r1		%edx	/* Secondary return-value register.  */
+#define scratch 	%ecx	/* Call-clobbered register for random use.  */
+#define MOVE(x,y)	movl x, y
diff --git a/sysdeps/unix/sysv/i386/linux/wait.S b/sysdeps/unix/sysv/i386/linux/wait.S
new file mode 100644
index 0000000000..4be64c47c9
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/linux/wait.S
@@ -0,0 +1,31 @@
+/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+ENTRY (__wait)
+	movl 0(%esp), %eax	/* Fetch the return address.  */
+	movl $-1, 0(%esp)	/* First arg is -1.  */
+				/* Second arg is our arg at 4(%esp).  */
+	pushl $0		/* Third arg is 0.  */
+	pushl %eax		/* Push the return address.  */
+
+	/* Jump to waitpid; it will return to our caller.  */
+	jmp ___waitpid
+
+weak_alias (__wait, wait)
diff --git a/sysdeps/unix/sysv/i386/signal.S b/sysdeps/unix/sysv/i386/signal.S
new file mode 100644
index 0000000000..14ef77bdc5
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/signal.S
@@ -0,0 +1,31 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* This is just a standard system call, except we need to load %edx
+   with the address of the `__sigreturn' function.  */
+
+	.globl syscall_error
+	.globl C_SYMBOL_NAME(__sigreturn)
+ENTRY (signal)
+	lea SYS_signal, %eax
+	lea C_SYMBOL_NAME(__sigreturn), %edx
+	.byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- GAS bug.  */
+	jb syscall_error
+	ret
diff --git a/sysdeps/unix/sysv/i386/sigreturn.S b/sysdeps/unix/sysv/i386/sigreturn.S
new file mode 100644
index 0000000000..be1c6b89bf
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/sigreturn.S
@@ -0,0 +1,27 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+.text
+ENTRY (__sigreturn)
+	addl $4, %esp		/* Pop the return PC.  */
+	lcall $0xf, $0		/* Do the magic sigreturn trap.  */
+	/* NOTREACHED */
+
+weak_alias (__sigreturn, sigreturn)
diff --git a/sysdeps/unix/sysv/i386/sysdep.h b/sysdeps/unix/sysv/i386/sysdep.h
new file mode 100644
index 0000000000..fedd5ea825
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/sysdep.h
@@ -0,0 +1,4 @@
+/* System V does not precede the asm names of C symbols with a `_'.  */
+#define	NO_UNDERSCORES
+
+#include <sysdeps/unix/i386/sysdep.h>
diff --git a/sysdeps/unix/sysv/i386/time.S b/sysdeps/unix/sysv/i386/time.S
new file mode 100644
index 0000000000..f492141c06
--- /dev/null
+++ b/sysdeps/unix/sysv/i386/time.S
@@ -0,0 +1,26 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (time, 1)
+	movl 4(%esp), %edx	/* Put passed pointer in %edx.  */
+	testl %edx, %edx	/* Is it non-nil?  */
+	je null
+	movl %eax, (%edx)	/* Yes; store the time there.  */
+null:	ret
diff --git a/sysdeps/unix/sysv/irix4/Dist b/sysdeps/unix/sysv/irix4/Dist
new file mode 100644
index 0000000000..c5dd106b55
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/Dist
@@ -0,0 +1,2 @@
+syssgi.S sysmp.S
+__handler.S sigtramp.c
diff --git a/sysdeps/unix/sysv/irix4/Implies b/sysdeps/unix/sysv/irix4/Implies
new file mode 100644
index 0000000000..35e1edd830
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/Implies
@@ -0,0 +1,4 @@
+# Irix 4 has the set of things which are also common to BSD and SVR4.
+unix/common
+# Irix 4 has the canonical set of <sys/mman.h> system calls.
+unix/mman
diff --git a/sysdeps/unix/sysv/irix4/Makefile b/sysdeps/unix/sysv/irix4/Makefile
new file mode 100644
index 0000000000..a7f3ea8ce5
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/Makefile
@@ -0,0 +1,25 @@
+# Copyright (C) 1993 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License
+# as published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+ifeq ($(subdir),signal)
+sysdep_routines := $(sysdep_routines) sigtramp __handler
+endif
+
+ifeq ($(subdir),misc)
+sysdep_routines := $(sysdep_routines) syssgi sysmp
+endif
diff --git a/sysdeps/unix/sysv/irix4/__handler.S b/sysdeps/unix/sysv/irix4/__handler.S
new file mode 100644
index 0000000000..bd756a4278
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/__handler.S
@@ -0,0 +1,116 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@cs.widener.edu).
+   Also hacked by Ian Lance Taylor (ian@airs.com).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* This function saves all the registers, calls the
+   user function, and then executes a sigreturn system call.  The
+   sigreturn call wants the address of a sigcontext structure.  This
+   is all hideously system dependent and, for all intents and
+   purposes, undocumented.
+
+   When we enter here, a3 holds the user's signal handler.  We are
+   supposed to fill in the context given in a2, and then pass it and
+   the first two arguments to the user's function.  If the user's
+   function returns, we execute a sigreturn system call.
+
+   The sc_onstack, sc_mask and sc_pc elements of the context are
+   already set by the kernel.  For some reason we don't have to save
+   the floating point state or the coprocessor state; the kernel may
+   have saved them for us, or it doesn't use them.  */
+
+.set noat
+ENTRY (__handler)
+#if 0
+	/* Store zero and the asm temp reg.  */
+	sw $0, 12(a2)
+	sw AT, 16(a2)
+
+	/* Put v1 in sc_regs[3].  */
+	sw v1, 24(a2)
+
+	/* Save the caller saved registers in sc_regs[8..15].  */
+	sw t0, 44(a2)
+	sw t1, 48(a2)
+	sw t2, 52(a2)
+	sw t3, 56(a2)
+	sw t4, 60(a2)
+	sw t5, 64(a2)
+	sw t6, 68(a2)
+	sw t7, 72(a2)
+
+	/* Save the callee saved registers in sc_regs[16..23].  */
+	sw s0, 76(a2)
+	sw s1, 80(a2)
+	sw s2, 84(a2)
+	sw s3, 88(a2)
+	sw s4, 92(a2)
+	sw s5, 96(a2)
+	sw s6, 100(a2)
+	sw s7, 104(a2)
+
+	/* Save the code generator registers in sc_regs[24] & sc_regs[25].  */
+	sw t8, 108(a2)
+	sw t9, 112(a2)
+
+	/* Save the kernel temp regs in sc_regs[26] & sc_regs[27]. */
+	sw k0, 116(a2)
+	sw k1, 120(a2)
+
+	/* Save the global pointer in sc_regs[28].  */
+	sw gp, 124(a2)
+
+	/* ... and also the return address in sc_regs[31].  */
+	sw ra, 136(a2)
+
+	/* Note: we don't save the stack pointer in sc_regs[29];
+	   instead, we use the one that was already there.  */
+#if 0
+	sw sp, 128(a2)
+#endif
+
+	/* Save the floating pointer in sc_regs[30].  */
+	sw fp, 132(a2)
+
+	/* Save the mul/div stuff in sc_mdlo and sc_mdhi.  */
+	mflo t0
+	sw t0, 140(a2)
+	mfhi t0
+	sw t0, 144(a2)
+
+#endif
+	/* Move the stack up six.  This will save the context.  */
+	addu sp, sp, -24
+	sw a2, 16(sp)
+
+	/* Call their handler with the signal, code, and context; note
+	   this will clobber the context.  */
+	.set noreorder
+	jal ra, a3
+	nop
+	.set reorder
+
+	/* When we come back, restore the context and pass it right
+	   on into sigreturn().  */
+	lw a0, 16(sp)
+
+	/* Do a sigreturn syscall; this doesn't return.  */
+	li v0, SYS_sigreturn
+	syscall
+	nop
diff --git a/sysdeps/unix/sysv/irix4/confname.h b/sysdeps/unix/sysv/irix4/confname.h
new file mode 100644
index 0000000000..49d2f9c989
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/confname.h
@@ -0,0 +1,80 @@
+/* `sysconf', `pathconf', and `confstr' NAME values.  Irix 4 version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Values for the NAME argument to `pathconf' and `fpathconf'.  */
+enum
+  {
+    _PC_LINK_MAX = 1,
+    _PC_MAX_CANON,
+    _PC_MAX_INPUT,
+    _PC_NAME_MAX,
+    _PC_PATH_MAX,
+    _PC_PIPE_BUF,
+    _PC_CHOWN_RESTRICTED,
+    _PC_NO_TRUNC,
+    _PC_VDISABLE
+  };
+
+/* Values for the argument to `sysconf'.  */
+enum
+  {
+    _SC_ARG_MAX = 1,
+    _SC_CHILD_MAX,
+    _SC_CLK_TCK,
+    _SC_NGROUPS_MAX,
+    _SC_OPEN_MAX,
+    _SC_JOB_CONTROL,
+    _SC_SAVED_IDS,
+    _SC_VERSION,
+
+    /* Above are done by the Irix system call.
+       The rest are done by the C library (or are not really implemented).  */
+
+    _SC_STREAM_MAX,
+    _SC_TZNAME_MAX,
+    _SC_PAGESIZE,
+
+    /* Values for the argument to `sysconf'
+       corresponding to _POSIX2_* symbols.  */
+    _SC_BC_BASE_MAX,
+    _SC_BC_DIM_MAX,
+    _SC_BC_SCALE_MAX,
+    _SC_BC_STRING_MAX,
+    _SC_COLL_WEIGHTS_MAX,
+    _SC_EQUIV_CLASS_MAX,
+    _SC_EXPR_NEST_MAX,
+    _SC_LINE_MAX,
+    _SC_RE_DUP_MAX,
+
+    _SC_2_VERSION,
+    _SC_2_C_BIND,
+    _SC_2_C_DEV,
+    _SC_2_FORT_DEV,
+    _SC_2_FORT_RUN,
+    _SC_2_SW_DEV,
+    _SC_2_LOCALEDEF
+  };
+
+#ifdef __USE_POSIX2
+/* Values for the NAME argument to `confstr'.  */
+enum
+  {
+    _CS_PATH			/* The default search path.  */
+  };
+#endif
diff --git a/sysdeps/unix/sysv/irix4/direct.h b/sysdeps/unix/sysv/irix4/direct.h
new file mode 100644
index 0000000000..153087fef5
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/direct.h
@@ -0,0 +1,15 @@
+#ifndef	MAXNAMLEN
+#define	MAXNAMLEN	255
+#endif
+
+struct direct
+  {
+    unsigned long int d_ino;
+    off_t d_off;
+    unsigned short int d_reclen;
+    char d_name[MAXNAMLEN + 1];
+  };
+
+#define D_NAMLEN(d) (strlen ((d)->d_name))
+
+#define D_RECLEN(d) (d->d_reclen)
diff --git a/sysdeps/unix/sysv/irix4/dup2.c b/sysdeps/unix/sysv/irix4/dup2.c
new file mode 100644
index 0000000000..86720b1b70
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/dup2.c
@@ -0,0 +1,3 @@
+#include <sysdeps/posix/__dup2.c>
+
+weak_alias (__dup2, dup2)
diff --git a/sysdeps/unix/sysv/irix4/fcntlbits.h b/sysdeps/unix/sysv/irix4/fcntlbits.h
new file mode 100644
index 0000000000..a8bb776cf4
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/fcntlbits.h
@@ -0,0 +1,98 @@
+/* O_*, F_*, FD_* bit values for SGI Irix 4.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_FCNTLBITS_H
+
+#define	_FCNTLBITS_H	1
+
+
+/* File access modes for `open' and `fcntl'.  */
+#define	O_RDONLY	0	/* Open read-only.  */
+#define	O_WRONLY	1	/* Open write-only.  */
+#define	O_RDWR		2	/* Open read/write.  */
+
+
+/* Bits OR'd into the second argument to open.  */
+#define	O_CREAT		00400	/* Create file if it doesn't exist.  */
+#define	O_EXCL		02000	/* Fail if file already exists.  */
+#define	O_TRUNC		01000	/* Truncate file to zero length.  */
+#ifdef __USE_MISC
+#define	O_SYNC		00020	/* Synchronous writes.  */
+#define	O_ASYNC		00100	/* Send SIGIO to owner when data is ready.  */
+#endif
+
+/* File status flags for `open' and `fcntl'.  */
+#define	O_APPEND	000010	/* Writes append to the file.  */
+#ifdef __USE_BSD
+#define	O_NDELAY	000004	/* Non-blocking I/O.  */
+#endif
+#define O_NONBLOCK	000200	/* POSIX.1 non-blocking I/O.  */
+
+/* Mask for file access modes.  This is system-dependent in case
+   some system ever wants to define some other flavor of access.  */
+#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
+
+/* Values for the second argument to `fcntl'.  */
+#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
+#define	F_GETFD		1	/* Get file descriptor flags.  */
+#define	F_SETFD		2	/* Set file descriptor flags.  */
+#define	F_GETFL		3	/* Get file status flags.  */
+#define	F_SETFL		4	/* Set file status flags.  */
+#define	F_GETLK		5	/* Get record locking info.  */
+#define	F_SETLK		6	/* Set record locking info.  */
+#define	F_SETLKW	7	/* Set record locking info, wait.  */
+#ifdef __USE_MISC
+#define F_CHKFL         8       /* Check legality of file flag changes.  */
+#define F_ALLOCSP       10
+#define F_FREESP        11
+#define F_SETBSDLK      12      /* Set Berkeley record lock.  */
+#define F_SETBSDLKW     13      /* Set Berkeley record lock and wait.  */
+#define F_RGETLK        20      /* Get info on a remote lock.  */
+#define F_RSETLK        21      /* Set or unlock a remote lock.  */
+#define F_RSETLKW       22      /* Set or unlock a remote lock and wait.  */
+#define F_GETOWN        10      /* Get owner; only works on sockets.  */
+#define F_SETOWN        11      /* Set owner; only works on sockets.  */
+#endif
+
+
+/* File descriptor flags used with F_GETFD and F_SETFD.  */
+#define	FD_CLOEXEC	1	/* Close on exec.  */
+
+
+#include <gnu/types.h>
+
+/* The structure describing an advisory lock.  This is the type of the third
+   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    short int l_sysid;	/* System ID where locking process resides. */
+    short int l_pid;	/* Process holding the lock.  */
+  };
+
+/* Values for the `l_type' field of a `struct flock'.  */
+#define	F_RDLCK	1	/* Read lock.  */
+#define	F_WRLCK	2	/* Write lock.  */
+#define	F_UNLCK	3	/* Remove lock.  */
+
+
+#endif	/* fcntlbits.h */
diff --git a/sysdeps/unix/sysv/irix4/fpathconf.c b/sysdeps/unix/sysv/irix4/fpathconf.c
new file mode 100644
index 0000000000..3c9f1750ff
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/fpathconf.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/syssgi.h>
+
+extern int __syssgi __P ((int, ...));
+
+/* Get file-specific information about descriptor FD.  */
+long int
+DEFUN(__fpathconf, (fd, name), int fd AND int name)
+{
+  return __syssgi (SGI_PATHCONF, FPATHCONF, fd, name);
+}
+
+weak_alias (__fpathconf, fpathconf)
diff --git a/sysdeps/unix/sysv/irix4/getgroups.c b/sysdeps/unix/sysv/irix4/getgroups.c
new file mode 100644
index 0000000000..714f66077f
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/getgroups.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sys/syssgi.h>
+#include <ansidecl.h>
+#include <sys/types.h>
+#include <grp.h>
+
+extern int __syssgi __P ((int, ...));
+
+/* Set the group set for the current user to GROUPS (N of them).  */
+int
+DEFUN(__getgroups, (n, groups), size_t n AND gid_t *groups)
+{
+  return __syssgi (SGI_GETGROUPS, n, groups);
+}   
+
+weak_alias (__getgroups, getgroups)
diff --git a/sysdeps/unix/sysv/irix4/getpgid.S b/sysdeps/unix/sysv/irix4/getpgid.S
new file mode 100644
index 0000000000..fbef7a2b27
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/getpgid.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+PSEUDO (__getpgid, bsdgetpgrp, 1)
+	ret
+
+weak_alias (__getpgid, getpgid)
diff --git a/sysdeps/unix/sysv/irix4/getpriority.c b/sysdeps/unix/sysv/irix4/getpriority.c
new file mode 100644
index 0000000000..70a9431890
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/getpriority.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <sys/resource.h>
+#include <sys/sysmp.h>
+
+extern int __sysmp __P ((int, ...));
+
+/* Return the highest priority of any process specified by WHICH and WHO
+   (see <sys/resource.h>); if WHO is zero, the current process, process group,
+   or user (as specified by WHO) is used.  A lower priority number means higher
+   priority.  Priorities range from PRIO_MIN to PRIO_MAX.  */
+int
+DEFUN(getpriority, (which, who),
+      enum __priority_which which AND int who)
+{
+  switch (which)
+    {
+    case PRIO_PROCESS:
+      return __sysmp (MP_SCHED, MPTS_GTNICE_PROC, who);
+    case PRIO_PGRP:
+      return __sysmp (MP_SCHED, MPTS_GTNICE_PGRP, who);
+    case PRIO_USER:
+      return __sysmp (MP_SCHED, MPTS_GTNICE_USER, who);
+    }
+
+  errno = EINVAL;
+  return -1;
+}
diff --git a/sysdeps/unix/sysv/irix4/getrusage.c b/sysdeps/unix/sysv/irix4/getrusage.c
new file mode 100644
index 0000000000..fdd3a24042
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/getrusage.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sys/resource.h>
+#include <errno.h>
+#include <sys/syssgi.h>
+
+extern int __syssgi __P ((int, ...));
+
+/* Return resource usage information on process indicated by WHO
+   and put it in *USAGE.  Returns 0 for success, -1 for failure.  */
+int
+DEFUN(__getrusage, (who, usage),
+      enum __rusage_who who AND struct rusage *usage)
+{
+  return __syssgi (SGI_RUSAGE, who, usage);
+}
+
+weak_alias (__getrusage, getrusage)
diff --git a/sysdeps/unix/sysv/irix4/gettimeofday.c b/sysdeps/unix/sysv/irix4/gettimeofday.c
new file mode 100644
index 0000000000..d7055be82e
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/gettimeofday.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/gettimeofday.c>
diff --git a/sysdeps/unix/sysv/irix4/msync.S b/sysdeps/unix/sysv/irix4/msync.S
new file mode 100644
index 0000000000..75b9f1531d
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/msync.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/sun/sunos4/msync.S>
diff --git a/sysdeps/unix/sysv/irix4/pathconf.c b/sysdeps/unix/sysv/irix4/pathconf.c
new file mode 100644
index 0000000000..698e30aab7
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/pathconf.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/syssgi.h>
+
+extern int __syssgi __P ((int, ...));
+
+/* Get file-specific information about PATH.  */
+long int
+DEFUN(__pathconf, (path, name), CONST char *path AND int name)
+{
+  return __syssgi (SGI_PATHCONF, PATHCONF, path, name);
+}
+
+weak_alias (__pathconf, pathconf)
diff --git a/sysdeps/unix/sysv/irix4/readv.c b/sysdeps/unix/sysv/irix4/readv.c
new file mode 100644
index 0000000000..baa976da6d
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/readv.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/readv.c>
diff --git a/sysdeps/unix/sysv/irix4/reboot.c b/sysdeps/unix/sysv/irix4/reboot.c
new file mode 100644
index 0000000000..d7a3659d2b
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/reboot.c
@@ -0,0 +1 @@
+#include <sysdeps/stub/reboot.c>
diff --git a/sysdeps/unix/sysv/irix4/setgroups.c b/sysdeps/unix/sysv/irix4/setgroups.c
new file mode 100644
index 0000000000..052df0f830
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/setgroups.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sys/syssgi.h>
+#include <ansidecl.h>
+#include <sys/types.h>
+#include <grp.h>
+
+extern int __syssgi __P ((int, ...));
+
+/* Set the group set for the current user to GROUPS (N of them).  */
+int
+DEFUN(setgroups, (n, groups), size_t n AND CONST gid_t *groups)
+{
+  return __syssgi (SGI_SETGROUPS, n, groups);
+}   
diff --git a/sysdeps/unix/sysv/irix4/setpgid.S b/sysdeps/unix/sysv/irix4/setpgid.S
new file mode 100644
index 0000000000..9267054fe9
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/setpgid.S
@@ -0,0 +1,25 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+PSEUDO (__setpgid, bsdsetpgrp, 2)
+	ret
+
+weak_alias (__setpgid, setpgid)
+weak_alias (__setpgid, setpgrp)
diff --git a/sysdeps/unix/sysv/irix4/setpriority.c b/sysdeps/unix/sysv/irix4/setpriority.c
new file mode 100644
index 0000000000..a632953423
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/setpriority.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <sys/resource.h>
+#include <sys/sysmp.h>
+
+int
+DEFUN(setpriority, (which, who, prio),
+      enum __priority_which which AND int who AND int prio)
+{
+  switch (which)
+    {
+    case PRIO_PROCESS:
+      return __sysmp (MP_SCHED, MPTS_RENICE_PROC, who, prio);
+    case PRIO_PGRP:
+      return __sysmp (MP_SCHED, MPTS_RENICE_PGRP, who, prio);
+    case PRIO_USER:
+      return __sysmp (MP_SCHED, MPTS_RENICE_USER, who, prio);
+    }
+
+  errno = EINVAL;
+  return -1;
+}
+
diff --git a/sysdeps/unix/sysv/irix4/signal.S b/sysdeps/unix/sysv/irix4/signal.S
new file mode 100644
index 0000000000..b0c147dadb
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/signal.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+PSEUDO (__raw_signal, signal, 3)
+	ret
diff --git a/sysdeps/unix/sysv/irix4/signum.h b/sysdeps/unix/sysv/irix4/signum.h
new file mode 100644
index 0000000000..5d30ebb875
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/signum.h
@@ -0,0 +1,67 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifdef	_SIGNAL_H
+
+/* This file defines the fake signal functions and signal
+   number constants for SGI Irix 4.  */
+
+/* Fake signal functions.  */
+#define	SIG_ERR	((__sighandler_t) -1)
+#define	SIG_DFL	((__sighandler_t) 0)
+#define	SIG_IGN	((__sighandler_t) 1)
+
+
+/* Signals.  */
+#define	SIGHUP		1	/* Hangup (POSIX).  */
+#define	SIGINT		2	/* Interrupt (ANSI).  */
+#define	SIGQUIT		3	/* Quit (POSIX).  */
+#define	SIGILL		4	/* Illegal instruction (ANSI).  */
+#define	SIGABRT		SIGIOT	/* Abort (ANSI).  */
+#define	SIGTRAP		5	/* Trace trap (POSIX).  */
+#define	SIGIOT		6	/* IOT trap.  */
+#define	SIGEMT		7	/* EMT trap.  */
+#define	SIGFPE		8	/* Floating-point exception (ANSI).  */
+#define	SIGKILL		9	/* Kill, unblockable (POSIX).  */
+#define	SIGBUS		10	/* Bus error.  */
+#define	SIGSEGV		11	/* Segmentation violation (ANSI).  */
+#define	SIGSYS		12	/* Bad argument to system call*/
+#define	SIGPIPE		13	/* Broken pipe (POSIX).  */
+#define	SIGALRM		14	/* Alarm clock (POSIX).  */
+#define	SIGTERM		15	/* Termination (ANSI).  */
+#define	SIGUSR1		16	/* User-defined signal 1 (POSIX).  */
+#define	SIGUSR2		17	/* User-defined signal 2 (POSIX).  */
+#define	SIGCHLD		18	/* Child status has changed (POSIX).  */
+#define	SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
+#define SIGPWR		19	/* Power going down.  */
+#define	SIGSTOP		20	/* Stop, unblockable (POSIX).  */
+#define	SIGTSTP		21	/* Keyboard stop (POSIX).  */
+#define	SIGPOLL		22	/* Same as SIGIO? (SVID).  */
+#define	SIGIO		23	/* I/O now possible.  */
+#define	SIGURG		24	/* Urgent condition on socket.*/
+#define	SIGWINCH	25	/* Window size change.  */
+#define	SIGVTALRM	26	/* Virtual alarm clock.  */
+#define	SIGPROF		27	/* Profiling alarm clock.  */
+#define	SIGCONT		28	/* Continue (POSIX).  */
+#define	SIGTTIN		29	/* Background read from tty (POSIX).  */
+#define	SIGTTOU		30	/* Background write to tty (POSIX).  */
+#define	SIGXCPU		31	/* CPU limit exceeded.  */
+#define	SIGXFSZ		32	/* File size limit exceeded.  */
+
+#endif	/* <signal.h> included.  */
+
+#define	_NSIG		33	/* Biggest signal number + 1.  */
diff --git a/sysdeps/unix/sysv/irix4/sigreturn.S b/sysdeps/unix/sysv/irix4/sigreturn.S
new file mode 100644
index 0000000000..ebb5c1ae44
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/sigreturn.S
@@ -0,0 +1,25 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@cs.widener.edu).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+ENTRY(__sigreturn)
+	li v0, SYS_sigreturn
+	syscall
+
+weak_alias (__sigreturn, sigreturn)
diff --git a/sysdeps/unix/sysv/irix4/sigtramp.c b/sysdeps/unix/sysv/irix4/sigtramp.c
new file mode 100644
index 0000000000..85c2c3a9a9
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/sigtramp.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* The sigvec system call on MIPS Ultrix takes an additional
+   parameter, which is the address that is actually called when the
+   signal occurs.
+
+   When a signal occurs, we arrange for the kernel to call __handler.
+   That will save the frame and stack pointers into the context, and
+   then jump to this routine.  See __handler.S.
+
+   This code is based on sysdeps/unix/bsd/sun4/sigtramp.c, but it's
+   different because since we get passed the user signal handler we
+   don't actually need a trampoline.  */
+
+#include <ansidecl.h>
+#include <signal.h>
+#include <stddef.h>
+#include <errno.h>
+
+/* The user's signal handler is called with three arguments.  */
+typedef void (*handler_type) (int sig, int code, struct sigcontext *);
+
+/* Defined in signal.S.  */
+extern __sighandler_t EXFUN(__raw_signal, (int sig, __sighandler_t func,
+				void (*)(int sig, int code,
+					 struct sigcontext *,
+					 handler_type)));
+
+extern void EXFUN(__handler, (int sig, int code,
+			      struct sigcontext *,
+			      handler_type));
+
+__sighandler_t
+DEFUN(signal, (sig, func),
+      int sig AND __sighandler_t func)
+{
+  return __raw_signal (sig, func, __handler);
+}
diff --git a/sysdeps/unix/sysv/irix4/start.c b/sysdeps/unix/sysv/irix4/start.c
new file mode 100644
index 0000000000..4382e6f855
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/start.c
@@ -0,0 +1,68 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifndef	__GNUC__
+  #error This file uses GNU C extensions; you must compile with GCC.
+#endif
+
+/* The first piece of initialized data.  */
+int __data_start = 0;
+
+VOLATILE int errno = 0;
+
+#ifndef	HAVE_GNU_LD
+#undef	environ
+#define	__environ	environ
+#endif
+
+char **__environ;
+
+extern void EXFUN(__libc_init, (int argc, char **argv, char **envp));
+extern int EXFUN(main, (int argc, char **argv, char **envp));
+
+/* Use the stack pointer to access the arguments.  This assumes that
+   we can guess how big the frame will be.  */
+register long int sp asm("sp");
+#ifdef __OPTIMIZE__
+#define STACKSIZE 8
+#else
+#define STACKSIZE 10
+#endif
+
+void
+DEFUN_VOID(__start)
+{
+  int argc;
+  char **argv, **envp;
+
+  /* Set up the global pointer.  */
+  asm volatile ("la $28,_gp");
+  argc = ((int *) sp)[STACKSIZE];
+  argv = (char **) &((int *) sp)[STACKSIZE + 1];
+  envp = &argv[argc + 1];
+  __environ = envp;
+
+  __libc_init (argc, argv, envp);
+  errno = 0;
+  exit (main (argc, argv, envp));
+}
diff --git a/sysdeps/unix/sysv/irix4/statbuf.h b/sysdeps/unix/sysv/irix4/statbuf.h
new file mode 100644
index 0000000000..8b327bae11
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/statbuf.h
@@ -0,0 +1,61 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_STATBUF_H
+#define	_STATBUF_H
+
+struct stat
+  {
+    unsigned long st_ino;
+    short int st_dev;
+    unsigned short int st_mode;
+    short int st_nlink;
+    unsigned short int st_uid;
+    unsigned short int st_gid;
+    short int st_rdev;
+    long int st_size;
+    long int st_atime;
+    long int st_mtime;
+    long int st_ctime;
+  };
+
+/* Encoding of the file mode.  */
+
+#define	__S_IFMT	0170000	/* These bits determine file type.  */
+
+/* File types.  */
+#define	__S_IFDIR	0040000	/* Directory.  */
+#define	__S_IFCHR	0020000	/* Character device.  */
+#define	__S_IFBLK	0060000	/* Block device.  */
+#define	__S_IFREG	0100000	/* Regular file.  */
+#define	__S_IFIFO	0010000	/* FIFO.  */
+
+/* These don't actually exist on System V, but having them doesn't hurt.  */
+#define	__S_IFLNK	0120000	/* Symbolic link.  */
+#define	__S_IFSOCK	0140000	/* Socket.  */
+
+/* Protection bits.  */
+
+#define	__S_ISUID	04000	/* Set user ID on execution.  */
+#define	__S_ISGID	02000	/* Set group ID on execution.  */
+#define	__S_ISVTX	01000	/* Save swapped text after use (sticky).  */
+#define	__S_IREAD	0400	/* Read by owner.  */
+#define	__S_IWRITE	0200	/* Write by owner.  */
+#define	__S_IEXEC	0100	/* Execute by owner.  */
+
+#endif	/* statbuf.h */
diff --git a/sysdeps/unix/sysv/irix4/swapon.c b/sysdeps/unix/sysv/irix4/swapon.c
new file mode 100644
index 0000000000..86a638fdc5
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/swapon.c
@@ -0,0 +1 @@
+#include <sysdeps/stub/swapon.c>
diff --git a/sysdeps/unix/sysv/irix4/sys/mman.h b/sysdeps/unix/sysv/irix4/sys/mman.h
new file mode 100644
index 0000000000..ac50aab6dd
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/sys/mman.h
@@ -0,0 +1,101 @@
+/* Definitions for BSD-style memory management.  Irix 4 version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_SYS_MMAN_H
+
+#define	_SYS_MMAN_H	1
+#include <features.h>
+
+#include <gnu/types.h>
+#define __need_size_t
+#include <stddef.h>
+
+
+/* Protections are chosen from these bits, OR'd together.  The
+   implementation does not necessarily support PROT_EXEC or PROT_WRITE
+   without PROT_READ.  The only guarantees are that no writing will be
+   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define	PROT_NONE	0x00	/* No access.  */
+#define	PROT_READ	0x04	/* Pages can be read.  */
+#define	PROT_WRITE	0x02	/* Pages can be written.  */
+#define	PROT_EXEC	0x01	/* Pages can be executed.  */
+#define	PROT_EXECUTE	PROT_EXEC
+
+
+/* Sharing types (must choose one and only one of these).  */
+#define	MAP_SHARED	0x01	/* Share changes.  */
+#define	MAP_PRIVATE	0x02	/* Changes private; copy pages on write.  */
+#define	MAP_TYPE	0x0f	/* Mask for sharing type.  */
+
+/* Other flags.  */
+#define	MAP_FIXED	0x10	/* Map address must be exactly as requested. */
+#define	MAP_RENAME	0x20	/* Rename private pages to file.  */
+#define	MAP_AUTOGROW	0x40	/* Grow file as pages are written.  */
+#define	MAP_LOCAL	0x80	/* Copy the mapped region on fork.  */
+
+/* Advice to `madvise'.  */
+#define	MADV_NORMAL	0	/* No further special treatment.  */
+#define	MADV_RANDOM	1	/* Expect random page references.  */
+#define	MADV_SEQUENTIAL	2	/* Expect sequential page references.  */
+#define	MADV_WILLNEED	3	/* Will need these pages.  */
+#define	MADV_DONTNEED	4	/* Don't need these pages.  */
+
+/* Flags to `msync'.  */
+#define	MS_ASYNC	0x1		/* Return immediately, don't fsync.  */
+#define	MS_INVALIDATE	0x2		/* Invalidate caches.  */
+
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+/* Map addresses starting near ADDR and extending for LEN bytes.  from
+   OFFSET into the file FD describes according to PROT and FLAGS.  If ADDR
+   is nonzero, it is the desired mapping address.  If the MAP_FIXED bit is
+   set in FLAGS, the mapping will be at ADDR exactly (which must be
+   page-aligned); otherwise the system chooses a convenient nearby address.
+   The return value is the actual mapping address chosen or (caddr_t) -1
+   for errors (in which case `errno' is set).  A successful `mmap' call
+   deallocates any previous mapping for the affected region.  */
+
+__caddr_t mmap __P ((__caddr_t __addr, size_t __len,
+		     int __prot, int __flags, int __fd, __off_t __offset));
+
+/* Deallocate any mapping for the region starting at ADDR and extending LEN
+   bytes.  Returns 0 if successful, -1 for errors (and sets errno).  */
+int munmap __P ((__caddr_t __addr, size_t __len));
+
+/* Change the memory protection of the region starting at ADDR and
+   extending LEN bytes to PROT.  Returns 0 if successful, -1 for errors
+   (and sets errno).  */
+int mprotect __P ((__caddr_t __addr, size_t __len, int __prot));
+
+/* Synchronize the region starting at ADDR and extending LEN bytes with the
+   file it maps.  Filesystem operations on a file being mapped are
+   unpredictable before this is done.  */
+int msync __P ((caddr_t __addr, size_t __len, int __flags));
+
+/* Advise the system about particular usage patterns the program follows
+   for the region starting at ADDR and extending LEN bytes.  */
+int madvise __P ((__caddr_t __addr, size_t __len, int __advice));
+
+__END_DECLS
+
+
+#endif	/* sys/mman.h */
diff --git a/sysdeps/unix/sysv/irix4/sysconf.c b/sysdeps/unix/sysv/irix4/sysconf.c
new file mode 100644
index 0000000000..a310362239
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/sysconf.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <unistd.h>
+#include <sys/syssgi.h>
+
+extern int __syssgi __P ((int, ...));
+
+/* Get the value of the system variable NAME.  */
+long int
+DEFUN(__sysconf, (name), int name)
+{
+  if (name == _SC_TZNAME_MAX)
+    return __tzname_max ();
+
+  return __syssgi (SGI_SYSCONF, name);
+}
+
+weak_alias (__sysconf, sysconf)
diff --git a/sysdeps/unix/sysv/irix4/sysmp.S b/sysdeps/unix/sysv/irix4/sysmp.S
new file mode 100644
index 0000000000..438da60d69
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/sysmp.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (sysmp, 4)
+	ret
diff --git a/sysdeps/unix/sysv/irix4/syssgi.S b/sysdeps/unix/sysv/irix4/syssgi.S
new file mode 100644
index 0000000000..2715d2899c
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/syssgi.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (syssgi, 2)
+	ret
diff --git a/sysdeps/unix/sysv/irix4/time.S b/sysdeps/unix/sysv/irix4/time.S
new file mode 100644
index 0000000000..23bfe5deac
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/time.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sysv4/time.S>
diff --git a/sysdeps/unix/sysv/irix4/uname.S b/sysdeps/unix/sysv/irix4/uname.S
new file mode 100644
index 0000000000..fe912403b1
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/uname.S
@@ -0,0 +1,26 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+ENTRY(uname)
+	li a2, 0
+	li a3, 0
+SYSCALL__ (utssys, 1)
+	j ra
+	move v0, zero
diff --git a/sysdeps/unix/sysv/irix4/wait.S b/sysdeps/unix/sysv/irix4/wait.S
new file mode 100644
index 0000000000..9f2afa7997
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/wait.S
@@ -0,0 +1,42 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@cs.widener.edu).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+.set noreorder
+
+ENTRY(__wait)
+	/* Prep it for wait */
+	move a1, zero
+	move a2, zero
+
+	li v0, SYS_wait
+	syscall
+	beq a3, zero, noerror
+	nop
+	j syscall_error
+	nop
+noerror:
+	beq a0, zero, noarg
+	nop
+	sw v1, 0(a0)
+	nop
+noarg:
+	ret
+
+weak_alias (__wait, wait)
diff --git a/sysdeps/unix/sysv/irix4/wait3.S b/sysdeps/unix/sysv/irix4/wait3.S
new file mode 100644
index 0000000000..54065aefdf
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/wait3.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/ultrix4/wait3.S>
diff --git a/sysdeps/unix/sysv/irix4/waitpid.c b/sysdeps/unix/sysv/irix4/waitpid.c
new file mode 100644
index 0000000000..8378982ac7
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/waitpid.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/bsd4.4/waitpid.c>
diff --git a/sysdeps/unix/sysv/irix4/writev.c b/sysdeps/unix/sysv/irix4/writev.c
new file mode 100644
index 0000000000..0dc6a76014
--- /dev/null
+++ b/sysdeps/unix/sysv/irix4/writev.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/writev.c>
diff --git a/sysdeps/unix/sysv/isc2.2/rename.S b/sysdeps/unix/sysv/isc2.2/rename.S
new file mode 100644
index 0000000000..a4b2c4207c
--- /dev/null
+++ b/sysdeps/unix/sysv/isc2.2/rename.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/common/rename.S>
diff --git a/sysdeps/unix/sysv/isc3/direct.h b/sysdeps/unix/sysv/isc3/direct.h
new file mode 100644
index 0000000000..e6df21246e
--- /dev/null
+++ b/sysdeps/unix/sysv/isc3/direct.h
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sco3.2.4/direct.h>
diff --git a/sysdeps/unix/sysv/linux/Implies b/sysdeps/unix/sysv/linux/Implies
new file mode 100644
index 0000000000..fe7e1fde5e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/Implies
@@ -0,0 +1,2 @@
+# Linux has the set of things which are also common to BSD and SVR4.
+unix/common
diff --git a/sysdeps/unix/sysv/linux/accept.S b/sysdeps/unix/sysv/linux/accept.S
new file mode 100644
index 0000000000..5936a0185b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/accept.S
@@ -0,0 +1,2 @@
+#define	socket	accept
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/bind.S b/sysdeps/unix/sysv/linux/bind.S
new file mode 100644
index 0000000000..fc82b65a2f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bind.S
@@ -0,0 +1,2 @@
+#define	socket	bind
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/connect.S b/sysdeps/unix/sysv/linux/connect.S
new file mode 100644
index 0000000000..3433043d8c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/connect.S
@@ -0,0 +1,2 @@
+#define	socket	connect
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/getpeername.S b/sysdeps/unix/sysv/linux/getpeername.S
new file mode 100644
index 0000000000..8429fcdf76
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getpeername.S
@@ -0,0 +1,2 @@
+#define	socket	getpeername
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/getpgrp.S b/sysdeps/unix/sysv/linux/getpgrp.S
new file mode 100644
index 0000000000..f8d6e07106
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getpgrp.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (getpgrp, 0)
+	ret
diff --git a/sysdeps/unix/sysv/linux/getsockname.S b/sysdeps/unix/sysv/linux/getsockname.S
new file mode 100644
index 0000000000..6782707f88
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getsockname.S
@@ -0,0 +1,2 @@
+#define	socket	getsockname
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/listen.S b/sysdeps/unix/sysv/linux/listen.S
new file mode 100644
index 0000000000..d2cbec60a0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/listen.S
@@ -0,0 +1,2 @@
+#define	socket	listen
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/rename.S b/sysdeps/unix/sysv/linux/rename.S
new file mode 100644
index 0000000000..a5a8dfeeef
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/rename.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/rename.S>
diff --git a/sysdeps/unix/sysv/linux/setsid.S b/sysdeps/unix/sysv/linux/setsid.S
new file mode 100644
index 0000000000..4930c56dcf
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setsid.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/bsd4.4/setsid.S>
diff --git a/sysdeps/unix/sysv/linux/socketpair.S b/sysdeps/unix/sysv/linux/socketpair.S
new file mode 100644
index 0000000000..da71c57dea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socketpair.S
@@ -0,0 +1,2 @@
+#define	socket	socketpair
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/syscall.h b/sysdeps/unix/sysv/linux/syscall.h
new file mode 100644
index 0000000000..b94d919e68
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/syscall.h
@@ -0,0 +1,124 @@
+#ifndef	_SYSCALL_H
+#define	_SYSCALL_H
+
+#define	SYS_setup		0 /* Used only by init, to get system going. */
+#define SYS_exit		1
+#define SYS_fork		2
+#define SYS_read		3
+#define SYS_write		4
+#define SYS_open		5
+#define SYS_close		6
+#define SYS_waitpid		7
+#define SYS_creat		8
+#define SYS_link		9
+#define SYS_unlink		10
+#define SYS_execve		11
+#define SYS_chdir		12
+#define SYS_time		13
+#define SYS_mknod		14
+#define SYS_chmod		15
+#define SYS_chown		16
+#define SYS_brk			17
+#define SYS_oldstat		18
+#define SYS_lseek		19
+#define SYS_getpid		20
+#define SYS_mount		21
+#define SYS_umount		22
+#define SYS_setuid		23
+#define SYS_getuid		24
+#define SYS_stime		25
+#define SYS_ptrace		26
+#define SYS_alarm		27
+#define SYS_oldfstat		28
+#define SYS_pause		29
+#define SYS_utime		30
+#define SYS_stty		31
+#define SYS_gtty		32
+#define SYS_access		33
+#define SYS_nice		34
+#define SYS_ftime		35
+#define SYS_sync		36
+#define SYS_kill		37
+#define SYS_rename		38
+#define SYS_mkdir		39
+#define SYS_rmdir		40
+#define SYS_dup			41
+#define SYS_pipe		42
+#define SYS_times		43
+#define SYS_prof		44
+#if 0
+#define SYS_brk			45 /* Where did this bogosity crom from? */
+#endif
+#define SYS_setgid		46
+#define SYS_getgid		47
+#define SYS_signal		48
+#define SYS_geteuid		49
+#define SYS_getegid		50
+#define SYS_acct		51
+#define SYS_phys		52
+#define SYS_lock		53
+#define SYS_ioctl		54
+#define SYS_fcntl		55
+#define SYS_mpx			56
+#define SYS_setpgrp		57
+#define SYS_ulimit		58
+#define SYS_olduname		59
+#define SYS_umask		60
+#define SYS_chroot		61
+#define SYS_ustat		62
+#define SYS_dup2		63
+#define SYS_getppid		64
+#define SYS_getpgrp		65
+#define SYS_setsid		66
+#define SYS_sigaction		67
+#define SYS_siggetmask		68
+#define SYS_sigsetmask		69
+#define SYS_setreuid		70
+#define SYS_setregid		71
+#define SYS_sigsuspend		72
+#define SYS_sigpending		73
+#define SYS_sethostname		74
+#define SYS_setrlimit		75
+#define SYS_getrlimit		76
+#define SYS_getrusage		77
+#define SYS_gettimeofday	78
+#define SYS_settimeofday	79
+#define SYS_getgroups		80
+#define SYS_setgroups		81
+#define SYS_select		82
+#define SYS_symlink		83
+#define SYS_oldlstat		84
+#define SYS_readlink		85
+#define SYS_uselib		86
+#define SYS_swapon		87
+#define SYS_reboot		88
+#define SYS_readdir		89
+#define SYS_mmap		90
+#define SYS_munmap		91
+#define SYS_truncate		92
+#define SYS_ftruncate		93
+#define SYS_fchmod		94
+#define SYS_fchown		95
+#define SYS_getpriority		96
+#define SYS_setpriority		97
+#define SYS_profil		98
+#define SYS_statfs		99
+#define SYS_fstatfs		100
+#define SYS_ioperm		101
+#define SYS_socketcall		102
+#define SYS_syslog		103
+#define SYS_setitimer		104
+#define SYS_getitimer		105
+#define SYS_stat		106
+#define SYS_lstat		107
+#define SYS_fstat		108
+#define SYS_uname		109
+#define SYS_iopl		110
+#define SYS_vhangup		111
+#define SYS_idle		112
+#define SYS_vm86		113
+#define SYS_wait4		114
+#define SYS_swapoff		115
+
+
+#endif	/* syscall.h */
diff --git a/sysdeps/unix/sysv/linux/wait4.S b/sysdeps/unix/sysv/linux/wait4.S
new file mode 100644
index 0000000000..e4c322341d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/wait4.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/bsd4.4/wait4.S>
diff --git a/sysdeps/unix/sysv/linux/waitpid.S b/sysdeps/unix/sysv/linux/waitpid.S
new file mode 100644
index 0000000000..20d9d669bb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/waitpid.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (waitpid, 3)
+	ret
+
+weak_alias (__waitpid, waitpid)
diff --git a/sysdeps/unix/sysv/local_lim.h b/sysdeps/unix/sysv/local_lim.h
new file mode 100644
index 0000000000..c2b0468ee7
--- /dev/null
+++ b/sysdeps/unix/sysv/local_lim.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#define NGROUPS_MAX 0		/* No supplementary groups.  */
+#define ARG_MAX 5120
+#define CHILD_MAX 25
+#define OPEN_MAX 60
+#define LINK_MAX 1000
+#define MAX_CANON 256
+
+/* For SVR3, this is 14.  For SVR4, it is 255, at least on ufs
+   file systems, even though the System V limits.h incorrectly
+   defines it as 14.  Giving it a value which is too large
+   is harmless (it is a maximum).  */
+#define NAME_MAX 255
+
+#define PATH_MAX 1024
diff --git a/sysdeps/unix/sysv/minix/sigaction.h b/sysdeps/unix/sysv/minix/sigaction.h
new file mode 100644
index 0000000000..9395206407
--- /dev/null
+++ b/sysdeps/unix/sysv/minix/sigaction.h
@@ -0,0 +1,49 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Signal handler.  */
+    __sighandler_t sa_handler;
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Special flags.  */
+    int sa_flags;
+  };
+
+/* Bits in `sa_flags'.  */
+#ifdef	__USE_MISC
+#define	SA_ONSTACK	0x1	/* Take signal on signal stack.  */
+#define	SA_RESETHAND	0x2	/* Reset signal handler when signal caught.  */
+#define	SA_NODEFER	0x4	/* Don't block signal while catching it.  */
+#define	SA_RESTART	0x8	/* Don't restart syscall on signal return.  */
+#define	SA_SIGINFO	0x10	/* Extended signal handling.  */
+#define	SA_NOCLDWAIT	0x20	/* Don't create zombies.  */
+#define	SA_COMPAT	0x80	/* Internal flag for old signal catchers.  */
+#define	SA_DISABLE	0x100	/* Disable alternate signal stack.  */
+#endif
+#define	SA_NOCLDSTOP	0x40	/* Don't send SIGCHLD when children stop.  */
+
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define	SIG_BLOCK	0	/* Block signals.  */
+#define	SIG_UNBLOCK	1	/* Unblock signals.  */
+#define	SIG_SETMASK	2	/* Set the set of blocked signals.  */
diff --git a/sysdeps/unix/sysv/mkdir.c b/sysdeps/unix/sysv/mkdir.c
new file mode 100644
index 0000000000..16713f9e48
--- /dev/null
+++ b/sysdeps/unix/sysv/mkdir.c
@@ -0,0 +1,97 @@
+/* Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <string.h>
+
+/* Create a directory named PATH with protections MODE.  */
+int
+DEFUN(__mkdir, (path, mode), CONST char *path AND mode_t mode)
+{
+  char *cmd = __alloca (80 + strlen (path));
+  char *p;
+  int status;
+  mode_t mask;
+  int save;
+  struct stat statbuf;
+
+  if (path == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  /* Check for some errors.  */
+  if (__stat (path, &statbuf) < 0)
+    {
+      if (errno != ENOENT)
+	return -1;
+      /* There is no file by that name.  Good.  */
+    }
+  else
+    {
+      errno = EEXIST;
+      return -1;
+    }
+
+  /* Race condition, but how else to do it?  */
+  mask = __umask (0777);
+  (void) __umask (mask);
+
+  p = cmd;
+  *p++ = 'm';
+  *p++ = 'k';
+  *p++ = 'd';
+  *p++ = 'i';
+  *p++ = 'r';
+  *p++ = ' ';
+
+  mode &= ~mask;
+  *p++ = '-';
+  *p++ = 'm';
+  *p++ = ' ';
+  *p++ = ((mode & 07000) >> 9) + '0';
+  *p++ = ((mode & 0700) >> 6) + '0';
+  *p++ = ((mode & 070) >> 3) + '0';
+  *p++ = ((mode & 07)) + '0';
+  *p++ = ' ';
+
+  strcpy (p, path);
+
+  save = errno;
+  /* If system doesn't set errno, but the mkdir fails, we really
+     have no idea what went wrong.  EIO is the vaguest error I
+     can think of, so I'll use that.  */
+  errno = EIO;
+  status = system (cmd);
+  if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
+    {
+      errno = save;
+      return 0;
+    }
+  else
+    return -1;
+}
+
+weak_alias (__mkdir, mkdir)
diff --git a/sysdeps/unix/sysv/nice.S b/sysdeps/unix/sysv/nice.S
new file mode 100644
index 0000000000..b04bb410a0
--- /dev/null
+++ b/sysdeps/unix/sysv/nice.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (nice, 1)
+	ret
diff --git a/sysdeps/unix/sysv/pause.S b/sysdeps/unix/sysv/pause.S
new file mode 100644
index 0000000000..82441ff2c0
--- /dev/null
+++ b/sysdeps/unix/sysv/pause.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (pause, 0)
+	ret
diff --git a/sysdeps/unix/sysv/poll.S b/sysdeps/unix/sysv/poll.S
new file mode 100644
index 0000000000..063236e7b9
--- /dev/null
+++ b/sysdeps/unix/sysv/poll.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (poll, 3)
+	ret
diff --git a/sysdeps/unix/sysv/rmdir.c b/sysdeps/unix/sysv/rmdir.c
new file mode 100644
index 0000000000..52a130ce3e
--- /dev/null
+++ b/sysdeps/unix/sysv/rmdir.c
@@ -0,0 +1,78 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <string.h>
+
+/* Create a directory named PATH with protections MODE.  */
+int
+DEFUN(__rmdir, (path), CONST char *path)
+{
+  char *cmd = __alloca (80 + strlen (path));
+  char *p;
+  int status;
+  int save;
+  struct stat statbuf;
+
+  if (path == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  /* Check for some errors.  */
+  if (__stat (path, &statbuf) < 0)
+    return -1;
+  if (!S_ISDIR (statbuf.st_mode))
+    {
+      errno = ENOTDIR;
+      return -1;
+    }
+
+  p = cmd;
+  *p++ = 'r';
+  *p++ = 'm';
+  *p++ = 'd';
+  *p++ = 'i';
+  *p++ = 'r';
+  *p++ = ' ';
+
+  strcpy (p, path);
+
+  save = errno;
+  /* If system doesn't set errno, but the rmdir fails, we really
+     have no idea what went wrong.  EIO is the vaguest error I
+     can think of, so I'll use that.  */
+  errno = EIO;
+  status = system (cmd);
+  if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
+    {
+      return 0;
+      errno = save;
+    }
+  else
+    return -1;
+}
+
+weak_alias (__rmdir, rmdir)
diff --git a/sysdeps/unix/sysv/s_getdents.S b/sysdeps/unix/sysv/s_getdents.S
new file mode 100644
index 0000000000..6e60c08125
--- /dev/null
+++ b/sysdeps/unix/sysv/s_getdents.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (getdents, 3)
+	ret
diff --git a/sysdeps/unix/sysv/sco3.2.4/Dist b/sysdeps/unix/sysv/sco3.2.4/Dist
new file mode 100644
index 0000000000..462b9fb1a6
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/Dist
@@ -0,0 +1,2 @@
+pgrpsys.S
+sco_getgrp.S
diff --git a/sysdeps/unix/sysv/sco3.2.4/Makefile b/sysdeps/unix/sysv/sco3.2.4/Makefile
new file mode 100644
index 0000000000..23525e527d
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/Makefile
@@ -0,0 +1,3 @@
+ifeq (posix,$(subdir))
+sysdep_routines := $(sysdep_routines) pgrpsys sco_getgrp
+endif
diff --git a/sysdeps/unix/sysv/sco3.2.4/__setpgid.c b/sysdeps/unix/sysv/sco3.2.4/__setpgid.c
new file mode 100644
index 0000000000..3c4304c633
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/__setpgid.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Get the process group ID of process PID.  */
+int
+DEFUN(__setpgid, (pid, pgid), pid_t pid AND pid_t pgid)
+{
+  return __pgrpsys (2, pid, pgid);
+}
diff --git a/sysdeps/unix/sysv/sco3.2.4/confname.h b/sysdeps/unix/sysv/sco3.2.4/confname.h
new file mode 100644
index 0000000000..0408951863
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/confname.h
@@ -0,0 +1,50 @@
+/* `sysconf', `pathconf', and `confstr' NAME values.  Generic version.
+Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Values for the NAME argument to `pathconf' and `fpathconf'.  */
+#define _PC_LINK_MAX		0
+#define _PC_MAX_CANON		1
+#define _PC_MAX_INPUT		2
+#define _PC_NAME_MAX		3
+#define _PC_PATH_MAX		4
+#define _PC_PIPE_BUF		5
+#define _PC_CHOWN_RESTRICTED	6
+#define _PC_NO_TRUNC		7
+#define _PC_VDISABLE		8
+
+/* Values for the argument to `sysconf'.  */
+#define _SC_ARG_MAX		0
+#define _SC_CHILD_MAX		1
+#define _SC_CLK_TCK		2
+#define _SC_NGROUPS_MAX		3
+#define _SC_OPEN_MAX		4
+#define _SC_JOB_CONTROL		5
+#define _SC_SAVED_IDS		6
+#define _SC_VERSION		7
+#define _SC_PASS_MAX		8
+#define _SC_XOPEN_VERSION	9
+#define _SC_TZNAME_MAX		666 /* Not handled by SCO's system call.  */
+
+#ifdef __USE_POSIX2
+/* Values for the NAME argument to `confstr'.  */
+enum
+  {
+    _CS_PATH			/* The default search path.  */
+  };
+#endif
diff --git a/sysdeps/unix/sysv/sco3.2.4/direct.h b/sysdeps/unix/sysv/sco3.2.4/direct.h
new file mode 100644
index 0000000000..b3eaa54c8b
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/direct.h
@@ -0,0 +1,22 @@
+#ifndef	MAXNAMLEN
+#define	MAXNAMLEN	512
+#endif
+#define DIRBUF	        1048	/* minimum buffer size for call to getdents */
+
+struct direct
+  {
+    unsigned short int d_fileno;
+    short int d_pad;
+    long int d_off;
+    unsigned short int d_reclen;
+    char d_name[1];		/* Actually longer. */
+  };
+
+#include <stddef.h>
+
+/* We calculate the length of the name by taking the length of the whole
+   `struct direct' record, subtracting the size of everything before the
+   name, and subtracting one for the terminating null.  */
+
+#define D_NAMLEN(d) \
+  ((d)->d_reclen - offsetof (struct direct, d_name) - 1)
diff --git a/sysdeps/unix/sysv/sco3.2.4/getgroups.c b/sysdeps/unix/sysv/sco3.2.4/getgroups.c
new file mode 100644
index 0000000000..68966bc5df
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/getgroups.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <limits.h>
+#include <alloca.h>
+
+extern int __sco_getgroups __P ((int size, unsigned short int *list));
+
+int
+DEFUN(__getgroups, (size, list), int size AND gid_t *list)
+{
+  int i;
+  unsigned short int *shortlist;
+
+  if (size <= 0)
+    return __sco_getgroups (size, NULL);
+
+  shortlist = __alloca (size * sizeof (*shortlist));
+
+  size = __sco_getgroups (size, shortlist);
+  for (i = 0; i < size; ++i)
+    list[i] = shortlist[i];
+
+  return size;
+}
+
+weak_alias (__getgroups, getgroups)
diff --git a/sysdeps/unix/sysv/sco3.2.4/getpgid.c b/sysdeps/unix/sysv/sco3.2.4/getpgid.c
new file mode 100644
index 0000000000..3b47d9dee2
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/getpgid.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sysv4/getpgid.c>
diff --git a/sysdeps/unix/sysv/sco3.2.4/pathconf.S b/sysdeps/unix/sysv/sco3.2.4/pathconf.S
new file mode 100644
index 0000000000..1c4dd9571c
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/pathconf.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (pathconf, 2)
+	ret
+
+weak_alias (__pathconf, pathconf)
diff --git a/sysdeps/unix/sysv/sco3.2.4/pgrpsys.S b/sysdeps/unix/sysv/sco3.2.4/pgrpsys.S
new file mode 100644
index 0000000000..2c7d994c28
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/pgrpsys.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sysv4/pgrpsys.S>
diff --git a/sysdeps/unix/sysv/sco3.2.4/pipestream.c b/sysdeps/unix/sysv/sco3.2.4/pipestream.c
new file mode 100644
index 0000000000..b768e62043
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/pipestream.c
@@ -0,0 +1,3 @@
+/* SCO 3.2v4 does have `waitpid'.
+   Avoid unix/pipestream.c, which says we don't.  */
+#include <sysdeps/posix/pipestream.c>
diff --git a/sysdeps/unix/sysv/sco3.2.4/sco_getgrp.S b/sysdeps/unix/sysv/sco3.2.4/sco_getgrp.S
new file mode 100644
index 0000000000..e68c300821
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sco_getgrp.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+PSEUDO (__sco_getgroups, getgroups, 2)
+	ret
diff --git a/sysdeps/unix/sysv/sco3.2.4/setpgid.c b/sysdeps/unix/sysv/sco3.2.4/setpgid.c
new file mode 100644
index 0000000000..cc9c4cd61b
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/setpgid.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sysv4/setpgid.c>
diff --git a/sysdeps/unix/sysv/sco3.2.4/setsid.c b/sysdeps/unix/sysv/sco3.2.4/setsid.c
new file mode 100644
index 0000000000..6337652552
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/setsid.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sysv4/setsid.c>
diff --git a/sysdeps/unix/sysv/sco3.2.4/sigaction.S b/sysdeps/unix/sysv/sco3.2.4/sigaction.S
new file mode 100644
index 0000000000..dc1bb418d6
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sigaction.S
@@ -0,0 +1,29 @@
+/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+.globl C_SYMBOL_NAME(__sigreturn)
+
+ENTRY (__sigaction)
+	movl $C_SYMBOL_NAME(__sigreturn), %ecx
+	DO_CALL (sigaction, 3)
+	jb syscall_error
+	ret
+
+weak_alias (__sigaction, sigaction)
diff --git a/sysdeps/unix/sysv/sco3.2.4/sigaction.h b/sysdeps/unix/sysv/sco3.2.4/sigaction.h
new file mode 100644
index 0000000000..c6344f0810
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sigaction.h
@@ -0,0 +1,39 @@
+/* The proper definitions for SCO's sigaction.
+Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Signal handler.  */
+    __sighandler_t sa_handler;
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Special flags.  */
+    int sa_flags;
+  };
+
+/* Bits in `sa_flags'.  */
+#define	SA_NOCLDSTOP	0x01	/* Don't send SIGCHLD when children stop.  */
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define	SIG_SETMASK	0	/* Set the set of blocked signals.  */
+#define	SIG_BLOCK	1	/* Block signals.  */
+#define	SIG_UNBLOCK	2	/* Unblock signals.  */
diff --git a/sysdeps/unix/sysv/sco3.2.4/sigpending.S b/sysdeps/unix/sysv/sco3.2.4/sigpending.S
new file mode 100644
index 0000000000..bc05b2ef6e
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sigpending.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (sigpending, 1)
+	ret
diff --git a/sysdeps/unix/sysv/sco3.2.4/sigprocmask.S b/sysdeps/unix/sysv/sco3.2.4/sigprocmask.S
new file mode 100644
index 0000000000..ff199158a4
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sigprocmask.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (sigprocmask, 3)
+	ret
+
+weak_alias (__sigprocmask, sigprocmask)
diff --git a/sysdeps/unix/sysv/sco3.2.4/sigsuspend.S b/sysdeps/unix/sysv/sco3.2.4/sigsuspend.S
new file mode 100644
index 0000000000..9bce3878fd
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sigsuspend.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sysv4/sigsuspend.S>
diff --git a/sysdeps/unix/sysv/sco3.2.4/syscall.h b/sysdeps/unix/sysv/sco3.2.4/syscall.h
new file mode 100644
index 0000000000..316bd0d0ce
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/syscall.h
@@ -0,0 +1,107 @@
+/* From Scott Bartram.  */
+
+#ifndef _SYSCALL_H
+#define _SYSCALL_H
+
+#define SYS_access	33
+#define SYS_acct	51
+#define SYS_advfs	70
+#define SYS_alarm	27
+#define SYS_break	17
+#define SYS_brk		17
+#define SYS_chdir	12
+#define SYS_chmod	15
+#define SYS_chown	16
+#define SYS_chroot	61
+#define SYS_chsize	0x0a28
+#define SYS_close	6
+#define SYS_creat	8
+#define SYS_dup		41
+#define SYS_exec	11
+#define SYS_exece	59
+#define SYS_exit	1
+#define SYS_fcntl	62
+#define SYS_fork	2
+#define SYS_fpathconf	0x2f28
+#define SYS_fstat	28
+#define SYS_fstatfs	38
+#define SYS_ftime	0x0b28
+#define SYS_getdents	81
+#define SYS_getgid	47
+#define SYS_getgroups	0x2b28
+#define SYS_getitimer	0x3728
+#define SYS_getmsg	85
+#define SYS_getpid	20
+#define SYS_getuid	24
+#define SYS_gtty	32
+#define SYS_ioctl	54
+#define SYS_kill	37
+#define SYS_link	9
+#define SYS_lock	45
+#define SYS_lseek	19
+#define SYS_lstat	91
+#define SYS_mkdir	80
+#define SYS_mknod	14
+#define SYS_mount	21
+#define SYS_msgsys	49
+#define SYS_nap		0x0c28
+#define SYS_nice	34
+#define SYS_open	5
+#define SYS_pathconf	0x2e28
+#define SYS_pause	29
+#define SYS_pgrpsys	39
+#define SYS_pipe	42
+#define SYS_plock	45
+#define SYS_poll	87
+#define SYS_prof	44
+#define SYS_ptrace	26
+#define SYS_putmsg	86
+#define SYS_rdebug	76
+#define SYS_read	3
+#define SYS_readlink	92
+#define SYS_rename	0x3028
+#define SYS_rfstart	74
+#define SYS_rfstop	77
+#define SYS_rfsys	78
+#define SYS_rmdir	79
+#define SYS_rmount	72
+#define SYS_rumount	73
+#define SYS_seek	19
+#define SYS_select	0x2428
+#define SYS_semsys	53
+#define SYS_setgid	46
+#define SYS_setgroups	0x2c28
+#define SYS_setitimer	0x3828
+#define SYS_setpgrp	39
+#define SYS_setuid	23
+#define SYS_shmsys	52
+#define SYS_sigaction	0x2728
+#define SYS_signal	48
+#define SYS_sigpending	0x2928
+#define SYS_sigprocmask	0x2828
+#define SYS_sigsuspend	0x2a28
+#define SYS_stat	18
+#define SYS_statfs	35
+#define SYS_stime	25
+#define SYS_stty	31
+#define SYS_symlink	90
+#define SYS_sync	36
+#define SYS_sys3b	50
+#define SYS_sysacct	51
+#define SYS_sysconf	0x2d28
+#define SYS_sysfs	84
+#define SYS_sysi86  	50
+#define SYS_time	13
+#define SYS_times	43
+#define SYS_uadmin	55
+#define SYS_ulimit	63
+#define SYS_umask	60
+#define SYS_umount	22
+#define SYS_unadvfs	71
+#define SYS_unlink	10
+#define SYS_utime	30
+#define SYS_utssys	57
+#define SYS_wait	7
+#define SYS_write	4
+
+#endif
diff --git a/sysdeps/unix/sysv/sco3.2.4/sysconf.S b/sysdeps/unix/sysv/sco3.2.4/sysconf.S
new file mode 100644
index 0000000000..631e5e977a
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/sysconf.S
@@ -0,0 +1,30 @@
+/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+#include <confname.h>
+
+.globl	__tzname_max
+ENTRY (__sysconf)
+	cmpl $_SC_TZNAME_MAX, 4(%esp) /* Is the arg _SC_TZNAME_MAX?  */
+	je tzname
+	DO_CALL (sysconf, 1)	/* No; use the SCO system call.  */
+	ret
+tzname:	jmp C_SYMBOL_NAME(__tzname_max) /* Yes; bounce to __tzname_max (). */
+
+weak_alias (__sysconf, sysconf)
diff --git a/sysdeps/unix/sysv/sco3.2.4/system.c b/sysdeps/unix/sysv/sco3.2.4/system.c
new file mode 100644
index 0000000000..06dc066b88
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/system.c
@@ -0,0 +1,10 @@
+/* SCO has a bug where `waitpid' will never return if SIGCHLD is blocked.
+   They have acknowledged that this is a bug but I have not seen nor heard
+   of any forthcoming fix.  */
+
+#define WAITPID_CANNOT_BLOCK_SIGCHLD
+
+/* SCO 3.2v4 does have `waitpid'.
+   Avoid unix/system.c, which says we don't.  */
+
+#include <sysdeps/posix/system.c>
diff --git a/sysdeps/unix/sysv/sco3.2.4/uname.S b/sysdeps/unix/sysv/sco3.2.4/uname.S
new file mode 100644
index 0000000000..a22d18a3e6
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/uname.S
@@ -0,0 +1,42 @@
+/* Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Contributed by Scott Bartram.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* 
+    before lcall, stack contents should be:
+
+	4(%esp) -> name
+	8(%esp) -> unspecified
+	12(%esp) -> 0
+ */
+
+ENTRY (uname)
+	pushl $0x0		/* Push the discriminator flag.  */
+	pushl $0x0		/* Push dummy placeholder.  */
+	pushl 12(%esp,1)	/* Push NAME (ptr to struct utsname)  */
+	subl $0x4, %esp		/* Adjust stack pointer.  */
+	DO_CALL (utssys, 3)
+	jb error		/* Test for error.  */
+	addl $0x10, %esp	/* Adjust the stack pointer.  */
+	xorl %eax, %eax		/* Clear return value.  */
+	ret
+error:	addl $0x10, %esp	/* Adjust the stack pointer.  */
+	jmp syscall_error
diff --git a/sysdeps/unix/sysv/sco3.2.4/waitpid.S b/sysdeps/unix/sysv/sco3.2.4/waitpid.S
new file mode 100644
index 0000000000..523ef37e53
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/waitpid.S
@@ -0,0 +1,36 @@
+/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+ENTRY (__waitpid)
+	/* The `waitpid' system call is distinguished from plain
+	   `wait' by setting lots of bits in the processor flags.  */
+	pushfl			/* Push the flags word.  */
+	popl %eax		/* Pop it into the accumulator.  */
+	orl $0x8c4, %eax	/* Set lots of bits.  */
+	pushl %eax		/* Push the new flags word.  */
+	popfl			/* Pop it into the flags.  */
+	DO_CALL (wait, 2)
+	movl 8(%esp), scratch	/* Put status pointer in scratch register.  */
+	testl scratch, scratch	/* Is it non-nil?  */
+	je null
+	movl r1, (scratch)	/* Yes; store the status there.  */
+null:	ret
+
+weak_alias (__waitpid, waitpid)
diff --git a/sysdeps/unix/sysv/sco3.2/Dist b/sysdeps/unix/sysv/sco3.2/Dist
new file mode 100644
index 0000000000..60fab2bdea
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2/Dist
@@ -0,0 +1 @@
+__fltused.c
diff --git a/sysdeps/unix/sysv/sco3.2/Makefile b/sysdeps/unix/sysv/sco3.2/Makefile
new file mode 100644
index 0000000000..1be24e85e3
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2/Makefile
@@ -0,0 +1,23 @@
+# Copyright (C) 1993 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License
+# as published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+ifeq ($(subdir),misc)
+ 
+sysdep_routines := $(sysdep_routines) __fltused
+
+endif
diff --git a/sysdeps/unix/sysv/sco3.2/__fltused.c b/sysdeps/unix/sysv/sco3.2/__fltused.c
new file mode 100644
index 0000000000..5d1d67f0b1
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2/__fltused.c
@@ -0,0 +1,3 @@
+/* Code compiled by the SCO compiler apparently likes this to be defined.  */
+
+int __fltused = 1;
diff --git a/sysdeps/unix/sysv/sco3.2/local_lim.h b/sysdeps/unix/sysv/sco3.2/local_lim.h
new file mode 100644
index 0000000000..6d6c3b0ac8
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2/local_lim.h
@@ -0,0 +1,37 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _LOCAL_LIM_H
+#define _LOCAL_LIM_H 1
+
+#define NGROUPS_MAX 8		/* Maximum number of supplementary groups.  */
+#define ARG_MAX 5120
+#define CHILD_MAX 25
+#define OPEN_MAX 60
+#define LINK_MAX 1000
+#define MAX_CANON 256
+
+/* For SVR3, this is 14.  For SVR4, it is 255, at least on ufs
+   file systems, even though the System V limits.h incorrectly
+   defines it as 14.  Giving it a value which is too large
+   is harmless (it is a maximum).  */
+#define NAME_MAX 255
+
+#define PATH_MAX 1024
+
+#endif	/* local_lim.h */
diff --git a/sysdeps/unix/sysv/setrlimit.c b/sysdeps/unix/sysv/setrlimit.c
new file mode 100644
index 0000000000..be4158e16e
--- /dev/null
+++ b/sysdeps/unix/sysv/setrlimit.c
@@ -0,0 +1,58 @@
+/* setrlimit function for systems with ulimit system call (SYSV).
+
+Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* This only implements those functions which are available via ulimit.  */
+
+#include <ansidecl.h>
+#include <sys/resource.h>
+#include <stddef.h>
+#include <errno.h>
+
+/* Set the soft and hard limits for RESOURCE to *RLIMITS.
+   Only the super-user can increase hard limits.
+   Return 0 if successful, -1 if not (and sets errno).  */
+int
+DEFUN(setrlimit, (resource, rlimits),
+      enum __rlimit_resource resource AND struct rlimit *rlimits)
+{
+  if (rlimits == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  switch (resource)
+    {
+    case RLIMIT_FSIZE:
+      return __ulimit(2, rlimits->rlim_cur);
+
+    case RLIMIT_DATA:
+    case RLIMIT_CPU:
+    case RLIMIT_STACK:
+    case RLIMIT_CORE:
+    case RLIMIT_RSS:
+      errno = ENOSYS;
+      return -1;
+
+    default:
+      errno = EINVAL;
+      return -1;
+    }
+}
diff --git a/sysdeps/unix/sysv/settimeofday.c b/sysdeps/unix/sysv/settimeofday.c
new file mode 100644
index 0000000000..1217c6beee
--- /dev/null
+++ b/sysdeps/unix/sysv/settimeofday.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <sys/time.h>
+
+/* Set the current time of day and timezone information.
+   This call is restricted to the super-user.  */
+int
+DEFUN(__settimeofday, (tv, tz),
+      CONST struct timeval *tv AND CONST struct timezone *tz)
+{
+  time_t when;
+
+  if (tv == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (tz != NULL || tv->tv_usec % 1000000 != 0)
+    {
+      errno = ENOSYS;
+      return -1;
+    }
+
+  when = tv->tv_sec + (tv->tv_usec / 1000000);
+  return stime (&when);
+}
+
+weak_alias (__settimeofday, settimeofday)
diff --git a/sysdeps/unix/sysv/sigaction.c b/sysdeps/unix/sysv/sigaction.c
new file mode 100644
index 0000000000..ebb42cf756
--- /dev/null
+++ b/sysdeps/unix/sysv/sigaction.c
@@ -0,0 +1,83 @@
+/* Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sysdep.h>
+#include <errno.h>
+#include <stddef.h>
+#include <signal.h>
+
+
+/* If ACT is not NULL, change the action for SIG to *ACT.
+   If OACT is not NULL, put the old action for SIG in *OACT.  */
+int
+DEFUN(__sigaction, (sig, act, oact),
+      int sig AND CONST struct sigaction *act AND struct sigaction *oact)
+{
+  sighandler_t handler;
+  int save;
+
+  if (sig <= 0 || sig >= NSIG)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (act == NULL)
+    {
+      if (oact == NULL)
+	return 0;
+      /* Race condition, but this is the only way to do it.  */
+      handler = signal (sig, SIG_IGN);
+      if (handler == SIG_ERR)
+	return -1;
+      save = errno;
+      (void) signal (sig, handler);
+      errno = save;
+    }
+  else
+    {
+      int i;
+
+      if (act->sa_flags != 0)
+	{
+	unimplemented:
+	  errno = ENOSYS;
+	  return -1;
+	}
+
+      for (i = 1; i < NSIG; ++i)
+	if (__sigismember (&act->sa_mask, i))
+	  goto unimplemented;
+
+      handler = signal (sig, act->sa_handler);
+      if (handler == SIG_ERR)
+	return -1;
+    }
+
+  if (oact != NULL)
+    {
+      oact->sa_handler = handler;
+      __sigemptyset (&oact->sa_mask);
+      oact->sa_flags = 0;
+    }
+
+  return 0;
+}
+
+weak_alias (__sigaction, sigaction)
diff --git a/sysdeps/unix/sysv/signal.S b/sysdeps/unix/sysv/signal.S
new file mode 100644
index 0000000000..5230b3463d
--- /dev/null
+++ b/sysdeps/unix/sysv/signal.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (signal, 2)
+	ret
diff --git a/sysdeps/unix/sysv/signum.h b/sysdeps/unix/sysv/signum.h
new file mode 100644
index 0000000000..e28a62a287
--- /dev/null
+++ b/sysdeps/unix/sysv/signum.h
@@ -0,0 +1,56 @@
+/* Signal number definitions.  System V version.
+Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifdef	_SIGNAL_H
+
+/* This file defines the fake signal functions and signal
+   number constants for System V release 3.  */
+
+/* Fake signal functions.  */
+#define	SIG_ERR	((__sighandler_t) -1) /* Error return.  */
+#define	SIG_DFL	((__sighandler_t) 0) /* Default action.  */
+#define	SIG_IGN	((__sighandler_t) 1) /* Ignore signal.  */
+
+
+/* Signals.  */
+#define	SIGHUP		1	/* Hangup (POSIX).  */
+#define	SIGINT		2	/* Interrupt (ANSI).  */
+#define	SIGQUIT		3	/* Quit (POSIX).  */
+#define	SIGILL		4	/* Illegal instruction (ANSI).  */
+#define	SIGABRT		SIGIOT	/* Abort (ANSI).  */
+#define	SIGTRAP		5	/* Trace trap (POSIX).  */
+#define	SIGIOT		6	/* IOT trap (4.2 BSD).  */
+#define	SIGEMT		7	/* EMT trap (4.2 BSD).  */
+#define	SIGFPE		8	/* Floating-point exception (ANSI).  */
+#define	SIGKILL		9	/* Kill, unblockable (POSIX).  */
+#define	SIGBUS		10	/* Bus error (4.2 BSD).  */
+#define	SIGSEGV		11	/* Segmentation violation (ANSI).  */
+#define	SIGSYS		12	/* Bad argument to system call (4.2 BSD)*/
+#define	SIGPIPE		13	/* Broken pipe (POSIX).  */
+#define	SIGALRM		14	/* Alarm clock (POSIX).  */
+#define	SIGTERM		15	/* Termination (ANSI).  */
+#define	SIGUSR1		16	/* User-defined signal 1 (POSIX).  */
+#define SIGUSR2		17	/* User-defined signal 2 (POSIX).  */
+#define SIGCHLD		18	/* Child status has changed (POSIX).  */
+#define SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
+#define	SIGPWR		19	/* Power failure restart (System V).  */
+
+#endif	/* <signal.h> included.  */
+
+#define	_NSIG		20	/* Biggest signal number + 1.  */
diff --git a/sysdeps/unix/sysv/statbuf.h b/sysdeps/unix/sysv/statbuf.h
new file mode 100644
index 0000000000..aa2cdfedcd
--- /dev/null
+++ b/sysdeps/unix/sysv/statbuf.h
@@ -0,0 +1,61 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_STATBUF_H
+#define	_STATBUF_H
+
+struct stat
+  {
+    short int st_dev;
+    unsigned short int st_ino;
+    unsigned short int st_mode;
+    short int st_nlink;
+    unsigned short int st_uid;
+    unsigned short int st_gid;
+    short int st_rdev;
+    long int st_size;
+    long int st_atime;
+    long int st_mtime;
+    long int st_ctime;
+  };
+
+/* Encoding of the file mode.  */
+
+#define	__S_IFMT	0170000	/* These bits determine file type.  */
+
+/* File types.  */
+#define	__S_IFDIR	0040000	/* Directory.  */
+#define	__S_IFCHR	0020000	/* Character device.  */
+#define	__S_IFBLK	0060000	/* Block device.  */
+#define	__S_IFREG	0100000	/* Regular file.  */
+#define	__S_IFIFO	0010000	/* FIFO.  */
+
+/* These don't actually exist on System V, but having them doesn't hurt.  */
+#define	__S_IFLNK	0120000	/* Symbolic link.  */
+#define	__S_IFSOCK	0140000	/* Socket.  */
+
+/* Protection bits.  */
+
+#define	__S_ISUID	04000	/* Set user ID on execution.  */
+#define	__S_ISGID	02000	/* Set group ID on execution.  */
+#define	__S_ISVTX	01000	/* Save swapped text after use (sticky).  */
+#define	__S_IREAD	0400	/* Read by owner.  */
+#define	__S_IWRITE	0200	/* Write by owner.  */
+#define	__S_IEXEC	0100	/* Execute by owner.  */
+
+#endif	/* statbuf.h */
diff --git a/sysdeps/unix/sysv/stime.S b/sysdeps/unix/sysv/stime.S
new file mode 100644
index 0000000000..0ffb6bbb7c
--- /dev/null
+++ b/sysdeps/unix/sysv/stime.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (stime, 1)
+	ret
diff --git a/sysdeps/unix/sysv/sysd-stdio.c b/sysdeps/unix/sysv/sysd-stdio.c
new file mode 100644
index 0000000000..35dae27a37
--- /dev/null
+++ b/sysdeps/unix/sysv/sysd-stdio.c
@@ -0,0 +1,2 @@
+#define	EINTR_REPEAT
+#include <../sysdeps/generic/sysd-stdio.c>
diff --git a/sysdeps/unix/sysv/sysv4/Dist b/sysdeps/unix/sysv/sysv4/Dist
new file mode 100644
index 0000000000..f603d8b8ff
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/Dist
@@ -0,0 +1,7 @@
+sysconfig.h
+sysconfig.S
+pgrpsys.S
+__waitid.S
+siginfo.h
+__getpgid.c __setpgid.c
+sysinfo.S
diff --git a/sysdeps/unix/sysv/sysv4/Implies b/sysdeps/unix/sysv/sysv4/Implies
new file mode 100644
index 0000000000..953822ea48
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/Implies
@@ -0,0 +1,3 @@
+# The directory unix/common contains things which are common to both BSD
+# and SVR4.
+unix/common
diff --git a/sysdeps/unix/sysv/sysv4/Makefile b/sysdeps/unix/sysv/sysv4/Makefile
new file mode 100644
index 0000000000..0c149da85c
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/Makefile
@@ -0,0 +1,36 @@
+# Copyright (C) 1992, 1993, 1995 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License
+# as published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+ifeq ($(subdir),posix)
+
+sysdep_routines := $(sysdep_routines) sysconfig pgrpsys __waitid
+
+endif
+
+
+ifeq ($(subdir),signal)
+
+sysdep_routines := $(sysdep_routines) sys-sig
+
+endif
+
+ifeq ($(subdir),misc)
+
+sysdep_routines := $(sysdep_routines) sysinfo
+
+endif
diff --git a/sysdeps/unix/sysv/sysv4/__getpgid.c b/sysdeps/unix/sysv/sysv4/__getpgid.c
new file mode 100644
index 0000000000..76a6e80f59
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/__getpgid.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Get the process group ID of process PID.  */
+int
+DEFUN(__getpgid, (pid), pid_t pid)
+{
+  return __pgrpsys (4, pid);
+}
diff --git a/sysdeps/unix/sysv/sysv4/__setpgid.c b/sysdeps/unix/sysv/sysv4/__setpgid.c
new file mode 100644
index 0000000000..594e4e9fe6
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/__setpgid.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Get the process group ID of process PID.  */
+int
+DEFUN(__setpgid, (pid, pgid), pid_t pid AND pid_t pgid)
+{
+  return __pgrpsys (5, pid, pgid);
+}
diff --git a/sysdeps/unix/sysv/sysv4/__waitid.S b/sysdeps/unix/sysv/sysv4/__waitid.S
new file mode 100644
index 0000000000..845bec85e2
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/__waitid.S
@@ -0,0 +1,25 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* XXX */
+#define SYS_waitid SYS_waitsys
+
+SYSCALL__ (waitid, 3)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/dup2.c b/sysdeps/unix/sysv/sysv4/dup2.c
new file mode 100644
index 0000000000..c7015fce7e
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/dup2.c
@@ -0,0 +1,4 @@
+/* SVR4 uses the POSIX dup2.  */
+#include <sysdeps/posix/__dup2.c>
+
+weak_alias (__dup2, dup2)
diff --git a/sysdeps/unix/sysv/sysv4/fchdir.S b/sysdeps/unix/sysv/sysv4/fchdir.S
new file mode 100644
index 0000000000..ef11d55bc0
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/fchdir.S
@@ -0,0 +1,2 @@
+/* SVR4 uses the BSD 4.4 fchdir(2) syscall.  */
+#include <sysdeps/unix/bsd/bsd4.4/fchdir.S>
diff --git a/sysdeps/unix/sysv/sysv4/ftruncate.c b/sysdeps/unix/sysv/sysv4/ftruncate.c
new file mode 100644
index 0000000000..45f2614257
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/ftruncate.c
@@ -0,0 +1,37 @@
+/* ftruncate for SVR4 using the fcntl F_FREESP command.
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+
+/* Truncate the file FD refers to to LENGTH bytes.  */
+int
+DEFUN(ftruncate, (fd, length),
+      int fd AND off_t length)
+{
+  struct flock fl;
+
+  memset (&fl, 0, sizeof fl);
+  fl.l_type = F_WRLCK;
+  fl.l_start = length;
+  return fcntl (fd, F_FREESP, &fl);
+}
diff --git a/sysdeps/unix/sysv/sysv4/getdtsz.c b/sysdeps/unix/sysv/sysv4/getdtsz.c
new file mode 100644
index 0000000000..c1ae6108fb
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/getdtsz.c
@@ -0,0 +1,2 @@
+/* Solaris uses sysconf ala POSIX.1.  */
+#include <sysdeps/posix/getdtsz.c>
diff --git a/sysdeps/unix/sysv/sysv4/gethostname.c b/sysdeps/unix/sysv/sysv4/gethostname.c
new file mode 100644
index 0000000000..cce1149e7f
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/gethostname.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/systeminfo.h>
+
+extern int __sysinfo __P ((int command, char *buf, long count));
+
+int
+DEFUN(__gethostname, (name, namelen), char *name AND size_t namelen)
+{
+  return __sysinfo (SI_HOSTNAME, name, namelen);
+}
+
+weak_alias (__gethostname, gethostname)
diff --git a/sysdeps/unix/sysv/sysv4/getpagesize.c b/sysdeps/unix/sysv/sysv4/getpagesize.c
new file mode 100644
index 0000000000..6119640758
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/getpagesize.c
@@ -0,0 +1,2 @@
+/* Solaris uses sysconf ala POSIX.1.  */
+#include <sysdeps/posix/getpagesize.c>
diff --git a/sysdeps/unix/sysv/sysv4/getpgid.c b/sysdeps/unix/sysv/sysv4/getpgid.c
new file mode 100644
index 0000000000..309e2f11e4
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/getpgid.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Get the process group ID of process PID.  */
+int
+DEFUN(__getpgid, (pid), pid_t pid)
+{
+  return __pgrpsys (4, pid);
+}
+
+weak_alias (__getpgid, getpgid)
diff --git a/sysdeps/unix/sysv/sysv4/i386/Dist b/sysdeps/unix/sysv/sysv4/i386/Dist
new file mode 100644
index 0000000000..69d16ac6bf
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/Dist
@@ -0,0 +1 @@
+sys-sig.S
diff --git a/sysdeps/unix/sysv/sysv4/i386/Makefile b/sysdeps/unix/sysv/sysv4/i386/Makefile
new file mode 100644
index 0000000000..56f0a37de1
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),signal)
+sysdep_routines := $(sysdep_routines) sys-sig
+endif
diff --git a/sysdeps/unix/sysv/sysv4/i386/fstat.S b/sysdeps/unix/sysv/sysv4/i386/fstat.S
new file mode 100644
index 0000000000..11743b3fc3
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/fstat.S
@@ -0,0 +1,37 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* In SVR4 the `stat' call is actually done by the `xstat' system call,
+   which takes an additional first argument giving a version number for
+   `struct stat'.  Likewise for `fstat' and `lstat' there are `fxstat' and
+   `lxstat' system calls.  This macro gives the SVR4 version number that
+   corresponds to the definition of `struct stat' in <statbuf.h>.  */
+#define	_STAT_VER	2
+
+.globl syscall_error
+ENTRY (__fstat)
+	popl %eax		/* Pop return address into %eax.  */
+	pushl $_STAT_VER	/* Push extra first arg to syscall.  */
+	pushl %eax		/* Push back the return address.  */
+	DO_CALL (fxstat, 3)	/* Do the syscall.   */
+	jb syscall_error	/* Check for error.  */
+	ret			/* Return success.  */
+
+weak_alias (__fstat, fstat)
diff --git a/sysdeps/unix/sysv/sysv4/i386/lstat.S b/sysdeps/unix/sysv/sysv4/i386/lstat.S
new file mode 100644
index 0000000000..52ffdbadfd
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/lstat.S
@@ -0,0 +1,37 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* In SVR4 the `stat' call is actually done by the `xstat' system call,
+   which takes an additional first argument giving a version number for
+   `struct stat'.  Likewise for `fstat' and `lstat' there are `fxstat' and
+   `lxstat' system calls.  This macro gives the SVR4 version number that
+   corresponds to the definition of `struct stat' in <statbuf.h>.  */
+#define	_STAT_VER	2
+
+.globl syscall_error
+ENTRY (__lstat)
+	popl %eax		/* Pop return address into %eax.  */
+	pushl $_STAT_VER	/* Push extra first arg to syscall.  */
+	pushl %eax		/* Push back the return address.  */
+	DO_CALL (lxstat, 3)	/* Do the syscall.   */
+	jb syscall_error	/* Check for error.  */
+	ret			/* Return success.  */
+
+weak_alias (__lstat, lstat)
diff --git a/sysdeps/unix/sysv/sysv4/i386/mknod.S b/sysdeps/unix/sysv/sysv4/i386/mknod.S
new file mode 100644
index 0000000000..21f932c921
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/mknod.S
@@ -0,0 +1,36 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* In SVR4 the `mknod' call is actually done by the `xmknod' system call,
+   which takes an additional first argument giving a version number for
+   the interface.  This macro gives the SVR4 version number that
+   corresponds to the modern interface.  */
+#define _MKNOD_VER      2
+
+.globl syscall_error
+ENTRY (__mknod)
+        popl %eax               /* Pop return address into %eax.  */
+        pushl $_MKNOD_VER       /* Push extra first arg to syscall.  */
+        pushl %eax              /* Push back the return address.  */
+        DO_CALL (xmknod, 3)     /* Do the syscall.   */
+        jb syscall_error        /* Check for error.  */
+        ret                     /* Return success.  */
+
+weak_alias (__mknod, mknod)
diff --git a/sysdeps/unix/sysv/sysv4/i386/stat.S b/sysdeps/unix/sysv/sysv4/i386/stat.S
new file mode 100644
index 0000000000..3a5107c267
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/stat.S
@@ -0,0 +1,37 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* In SVR4 the `stat' call is actually done by the `xstat' system call,
+   which takes an additional first argument giving a version number for
+   `struct stat'.  Likewise for `fstat' and `lstat' there are `fxstat' and
+   `lxstat' system calls.  This macro gives the SVR4 version number that
+   corresponds to the definition of `struct stat' in <statbuf.h>.  */
+#define	_STAT_VER	2
+
+.globl syscall_error
+ENTRY (__stat)
+	popl %eax		/* Pop return address into %eax.  */
+	pushl $_STAT_VER	/* Push extra first arg to syscall.  */
+	pushl %eax		/* Push back the return address.  */
+	DO_CALL (xstat, 3)	/* Do the syscall.   */
+	jb syscall_error	/* Check for error.  */
+	ret			/* Return success.  */
+
+weak_alias (__stat, stat)
diff --git a/sysdeps/unix/sysv/sysv4/i386/statbuf.h b/sysdeps/unix/sysv/sysv4/i386/statbuf.h
new file mode 100644
index 0000000000..6f1bfed850
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/statbuf.h
@@ -0,0 +1,84 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_STATBUF_H
+#define	_STATBUF_H
+
+#include <gnu/types.h>
+
+/* Structure describing file characteristics.  */
+struct stat
+  {
+    unsigned long st_dev;	/* Device.  */
+    long st_filler1[3];
+    unsigned long st_ino;		/* File serial number.		*/
+    unsigned long st_mode;	/* File mode.  */
+    unsigned long st_nlink;	/* Link count.  */
+    long st_uid;		/* User ID of the file's owner.	*/
+    long st_gid;		/* Group ID of the file's group.*/
+    unsigned long st_rdev;	/* Device number, if device.  */
+    long st_filler2[2];
+
+    long st_size;		/* Size of file, in bytes.  */
+    /* SVR4 added this extra long to allow for expansion of off_t.  */ 
+    long st_filler3;
+
+    long st_atime;		/* Time of last access.  */
+    unsigned long st_atime_usec;
+    long st_mtime;		/* Time of last modification.  */
+    unsigned long st_mtime_usec;
+    long st_ctime;		/* Time of last status change.  */
+    unsigned long st_ctime_usec;
+
+    long st_blksize;		/* Optimal block size for I/O.  */
+#define	_STATBUF_ST_BLKSIZE	/* Tell code we have this member.  */
+
+    long st_blocks;		/* Number of 512-byte blocks allocated.  */
+    char st_fstype[16];		/* The type of this filesystem.  */
+    int st_aclcnt;
+    unsigned long st_level;
+    unsigned long st_flags;
+    unsigned long st_cmwlevel;
+    long st_filler4[4];
+  };
+
+/* Encoding of the file mode.  */
+
+#define	__S_IFMT	0170000	/* These bits determine file type.  */
+
+/* File types.  */
+#define	__S_IFDIR	0040000	/* Directory.  */
+#define	__S_IFCHR	0020000	/* Character device.  */
+#define	__S_IFBLK	0060000	/* Block device.  */
+#define	__S_IFREG	0100000	/* Regular file.  */
+#define	__S_IFIFO	0010000	/* FIFO.  */
+
+/* These don't actually exist on System V, but having them doesn't hurt.  */
+#define	__S_IFLNK	0120000	/* Symbolic link.  */
+#define	__S_IFSOCK	0140000	/* Socket.  */
+
+/* Protection bits.  */
+
+#define	__S_ISUID	04000	/* Set user ID on execution.  */
+#define	__S_ISGID	02000	/* Set group ID on execution.  */
+#define	__S_ISVTX	01000	/* Save swapped text after use (sticky).  */
+#define	__S_IREAD	0400	/* Read by owner.  */
+#define	__S_IWRITE	0200	/* Write by owner.  */
+#define	__S_IEXEC	0100	/* Execute by owner.  */
+
+#endif	/* statbuf.h */
diff --git a/sysdeps/unix/sysv/sysv4/i386/sys-sig.S b/sysdeps/unix/sysv/sysv4/i386/sys-sig.S
new file mode 100644
index 0000000000..58430e494f
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/sys-sig.S
@@ -0,0 +1,30 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+.globl C_SYMBOL_NAME(__sigreturn)
+
+ENTRY (__sigaction_syscall)
+	movl $C_SYMBOL_NAME(__sigreturn), %edx
+	DO_CALL (sigaction, 3)
+	jb syscall_error
+	ret
+
+PSEUDO (__context_syscall, context, 2)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/i386/sysdep.h b/sysdeps/unix/sysv/sysv4/i386/sysdep.h
new file mode 100644
index 0000000000..1e0cd69f74
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/sysdep.h
@@ -0,0 +1,38 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdeps/unix/sysv/i386/sysdep.h>
+
+/* In SVR4 some system calls can fail with the error ERESTART,
+   and this means the call should be retried.  */
+
+#ifndef _ERRNO_H
+#define _ERRNO_H
+#endif
+#include <errnos.h>
+
+#undef	PSEUDO
+#define	PSEUDO(name, syscall_name, args)				      \
+  .globl syscall_error;							      \
+  ENTRY (name)								      \
+  DO_CALL (syscall_name, args);						      \
+  jae noerror;								      \
+  cmpb $ERESTART, %al;							      \
+  je C_SYMBOL_NAME (name);						      \
+  jmp syscall_error;							      \
+  noerror:
diff --git a/sysdeps/unix/sysv/sysv4/i386/vfork.S b/sysdeps/unix/sysv/sysv4/i386/vfork.S
new file mode 100644
index 0000000000..bbe99fbc41
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/i386/vfork.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/i386/vfork.S>
diff --git a/sysdeps/unix/sysv/sysv4/pgrpsys.S b/sysdeps/unix/sysv/sysv4/pgrpsys.S
new file mode 100644
index 0000000000..dcfb487e54
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/pgrpsys.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (pgrpsys, 3)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/pipestream.c b/sysdeps/unix/sysv/sysv4/pipestream.c
new file mode 100644
index 0000000000..6a32f9507c
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/pipestream.c
@@ -0,0 +1,2 @@
+/* We deliberately avoid having NO_WAITPID set.  */
+#include <sysdeps/posix/pipestream.c>
diff --git a/sysdeps/unix/sysv/sysv4/setegid.S b/sysdeps/unix/sysv/sysv4/setegid.S
new file mode 100644
index 0000000000..f8fd7633a5
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/setegid.S
@@ -0,0 +1,2 @@
+/* SVR4 uses the BSD 4.4 setegid() system call.  */
+#include <sysdeps/unix/bsd/bsd4.4/setegid.S>
diff --git a/sysdeps/unix/sysv/sysv4/seteuid.S b/sysdeps/unix/sysv/sysv4/seteuid.S
new file mode 100644
index 0000000000..4ff110610f
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/seteuid.S
@@ -0,0 +1,2 @@
+/* SVR4 uses the BSD 4.4 seteuid() system call.  */
+#include <sysdeps/unix/bsd/bsd4.4/seteuid.S>
diff --git a/sysdeps/unix/sysv/sysv4/sethostname.c b/sysdeps/unix/sysv/sysv4/sethostname.c
new file mode 100644
index 0000000000..4cebc456e1
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sethostname.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/systeminfo.h>
+
+extern int __sysinfo __P ((int command, const char *buf, long count));
+
+int
+DEFUN(sethostname, (name, namelen), const char *name AND size_t namelen)
+{
+  return __sysinfo (SI_SET_HOSTNAME, name, namelen);
+}
diff --git a/sysdeps/unix/sysv/sysv4/setpgid.c b/sysdeps/unix/sysv/sysv4/setpgid.c
new file mode 100644
index 0000000000..b9e06dc719
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/setpgid.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Set the process group ID of the process matching PID to PGID.
+   If PID is zero, the current process's process group ID is set.
+   If PGID is zero, the process ID of the process is used.  */
+int
+DEFUN(__setpgid, (pid, pgid), int pid AND int pgid)
+{
+  return __pgrpsys (5, pid, pgid);
+}
+
+weak_alias (__setpgid, setpgid)
+weak_alias (__setpgid, setpgrp)
diff --git a/sysdeps/unix/sysv/sysv4/setsid.c b/sysdeps/unix/sysv/sysv4/setsid.c
new file mode 100644
index 0000000000..f0d6c8a4cd
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/setsid.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Create a new session with the calling process as its leader.
+   The process group IDs of the session and the calling process
+   are set to the process ID of the calling process, which is returned.  */
+int
+DEFUN_VOID(__setsid)
+{
+  return __pgrpsys (3);
+}
+
+weak_alias (__setsid, setsid)
diff --git a/sysdeps/unix/sysv/sysv4/sigaction.c b/sysdeps/unix/sysv/sysv4/sigaction.c
new file mode 100644
index 0000000000..68fd7a1846
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigaction.c
@@ -0,0 +1,79 @@
+/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+#include <stddef.h>
+
+static __sighandler_t user_handlers[NSIG];
+
+extern int __context_syscall (int, struct sigcontext *);
+extern int __sigaction_syscall (int,
+				const struct sigaction *, struct sigaction *);
+
+static void
+trampoline (int sig, int code, struct sigcontext *context)
+{
+  (*(void (*) (int, int, struct sigcontext *)) user_handlers[sig])
+    (sig, code, context);
+  __context_syscall (1, context);
+}
+
+/* If ACT is not NULL, change the action for SIG to *ACT.
+   If OACT is not NULL, put the old action for SIG in *OACT.  */
+int
+DEFUN(__sigaction, (sig, act, oact),
+      int sig AND CONST struct sigaction *act AND struct sigaction *oact)
+{
+  struct sigaction myact;
+  __sighandler_t ohandler;
+
+  if (sig <= 0 || sig >= NSIG)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  ohandler = user_handlers[sig];
+
+  if (act != NULL)
+    {
+      user_handlers[sig] = act->sa_handler;
+      if (act->sa_handler != SIG_DFL && act->sa_handler != SIG_IGN)
+	{
+	  myact = *act;
+	  act = &myact;
+	  act->sa_handler = (__sighandler_t) trampoline;
+	}
+    }
+
+  if (__sigaction_syscall (sig, act, oact) < 0)
+    {
+      /* The syscall got an error.  Restore the old handler and return -1.  */
+      user_handlers[sig] = ohandler;
+      return -1;
+    }
+
+  if (oact != NULL && oact->sa_handler == (__sighandler_t) trampoline)
+    oact->sa_handler = ohandler;
+
+  return 0;
+}
+
+weak_alias (__sigaction, sigaction)
diff --git a/sysdeps/unix/sysv/sysv4/sigaction.h b/sysdeps/unix/sysv/sysv4/sigaction.h
new file mode 100644
index 0000000000..dbb31f1077
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigaction.h
@@ -0,0 +1,51 @@
+/* The proper definitions for SVR4's sigaction.
+Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Special flags.  */
+    int sa_flags;
+
+    /* Signal handler.  */
+    __sighandler_t sa_handler;
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Padding.  */
+    int sa_resv[2];
+  };
+
+/* Bits in `sa_flags'.  */
+#ifdef __USE_MISC
+#define	SA_ONSTACK	0x1	/* Take signal on signal stack.  */
+#define SA_RESETHAND	0x2	/* Reset to SIG_DFL on entry to handler.  */
+#define	SA_RESTART	0x4	/* Don't restart syscall on signal return.  */
+#define SA_SIGINFO	0x8	/* Provide additional info to the handler.  */
+#define SA_NODEFER	0x10	/* Don't automatically block the signal when
+ 				   its handler is being executed.  */
+#define SA_NOCLDWAIT	0x10000	/* Don't save zombie processes.  */
+#endif
+#define	SA_NOCLDSTOP	0x20000	/* Don't send SIGCHLD when children stop.  */
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define	SIG_BLOCK	1	/* Block signals.  */
+#define	SIG_UNBLOCK	2	/* Unblock signals.  */
+#define	SIG_SETMASK	3	/* Set the set of blocked signals.  */
diff --git a/sysdeps/unix/sysv/sysv4/sigaltstack.S b/sysdeps/unix/sysv/sysv4/sigaltstack.S
new file mode 100644
index 0000000000..e7e4060fba
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigaltstack.S
@@ -0,0 +1,2 @@
+/* SVR4 uses the BSD 4.4 sigaltstack syscall.  */
+#include <sysdeps/unix/bsd/bsd4.4/sigaltstk.S>
diff --git a/sysdeps/unix/sysv/sysv4/siginfo.h b/sysdeps/unix/sysv/sysv4/siginfo.h
new file mode 100644
index 0000000000..ce8dd35bf1
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/siginfo.h
@@ -0,0 +1,58 @@
+/* Definitions of the siginfo structure.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_SIGINFO_H
+#define	_SIGINFO_H	1
+
+#ifdef __USE_SVID
+/* SVR4 puts a ton of other stuff in this structure.  For now, we'll just
+   define the two things we really need out of it, and hope for the best.  */
+
+/* These define the different states a child can have on exit.
+   We need these to build the status return for things like waitpid.  */
+#define EXITED 		1
+#define KILLED		2
+#define CORED		3
+#define TRAPPED		4
+#define STOPPED		5
+#define CONTINUED	6
+
+typedef struct __siginfo
+  {
+    int filler1;
+
+    /* Code indicating child's status */
+    int __code;
+
+    int filler2;
+
+    /* The PID of the child.  */
+    long __pid;
+
+    int filler3;
+
+    /* The child's status.  */
+    int __status;
+
+    int filler4[26];
+
+  } __siginfo_t;
+
+#endif  /* __USE_SVID */
+#endif	/* siginfo.h */
diff --git a/sysdeps/unix/sysv/sysv4/signum.h b/sysdeps/unix/sysv/sysv4/signum.h
new file mode 100644
index 0000000000..aa3dc7fa25
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/signum.h
@@ -0,0 +1,66 @@
+/* Signal number definitions.  SVR4 version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifdef	_SIGNAL_H
+
+/* Fake signal functions.  */
+#define	SIG_ERR	((__sighandler_t) -1) /* Error return.  */
+#define	SIG_DFL	((__sighandler_t) 0) /* Default action.  */
+#define	SIG_IGN	((__sighandler_t) 1) /* Ignore signal.  */
+
+
+/* Signals.  */
+#define	SIGHUP		1	/* Hangup (POSIX).  */
+#define	SIGINT		2	/* Interrupt (ANSI).  */
+#define	SIGQUIT		3	/* Quit (POSIX).  */
+#define	SIGILL		4	/* Illegal instruction (ANSI).  */
+#define	SIGABRT		SIGIOT	/* Abort (ANSI).  */
+#define	SIGTRAP		5	/* Trace trap (POSIX).  */
+#define	SIGIOT		6	/* IOT trap (4.2 BSD).  */
+#define	SIGEMT		7	/* EMT trap (4.2 BSD).  */
+#define	SIGFPE		8	/* Floating-point exception (ANSI).  */
+#define	SIGKILL		9	/* Kill, unblockable (POSIX).  */
+#define	SIGBUS		10	/* Bus error (4.2 BSD).  */
+#define	SIGSEGV		11	/* Segmentation violation (ANSI).  */
+#define	SIGSYS		12	/* Bad argument to system call (4.2 BSD)*/
+#define	SIGPIPE		13	/* Broken pipe (POSIX).  */
+#define	SIGALRM		14	/* Alarm clock (POSIX).  */
+#define	SIGTERM		15	/* Termination (ANSI).  */
+#define	SIGUSR1		16	/* User-defined signal 1 (POSIX).  */
+#define	SIGUSR2		17	/* User-defined signal 2 (POSIX).  */
+#define	SIGCHLD		18	/* Child status has changed (POSIX).  */
+#define	SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
+#define	SIGPWR		19	/* Power failure restart (System V).  */
+#define	SIGWINCH	20	/* Window size change (4.3 BSD, Sun).  */
+#define	SIGURG		21	/* Urgent condition on socket (4.2 BSD).*/
+#define	SIGPOLL		22	/* Pollable event occurred (System V).  */
+#define	SIGIO		SIGPOLL	/* I/O now possible (4.2 BSD).  */
+#define	SIGSTOP		23	/* Stop, unblockable (POSIX).  */
+#define	SIGTSTP		24	/* Keyboard stop (POSIX).  */
+#define	SIGCONT		25	/* Continue (POSIX).  */
+#define	SIGTTIN		26	/* Background read from tty (POSIX).  */
+#define	SIGTTOU		27	/* Background write to tty (POSIX).  */
+#define	SIGVTALRM	28	/* Virtual alarm clock (4.2 BSD).  */
+#define	SIGPROF		29	/* Profiling alarm clock (4.2 BSD).  */
+#define	SIGXCPU		30	/* CPU limit exceeded (4.2 BSD).  */
+#define	SIGXFSZ		31	/* File size limit exceeded (4.2 BSD).  */
+
+#endif	/* <signal.h> included.  */
+
+#define	_NSIG		32	/* Biggest signal number + 1.  */
diff --git a/sysdeps/unix/sysv/sysv4/sigprocmask.S b/sysdeps/unix/sysv/sysv4/sigprocmask.S
new file mode 100644
index 0000000000..51fddb0bee
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigprocmask.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (sigprocmask, 3)
+	ret
+
+weak_alias (__sigprocmask, sigprocmask)
diff --git a/sysdeps/unix/sysv/sysv4/sigset.h b/sysdeps/unix/sysv/sysv4/sigset.h
new file mode 100644
index 0000000000..a007a43470
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigset.h
@@ -0,0 +1,97 @@
+/* __sig_atomic_t, __sigset_t, and related definitions.  SVR4 version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_SIGSET_H_types
+#define	_SIGSET_H_types	1
+
+typedef int __sig_atomic_t;
+
+/* A `sigset_t' has a bit for each signal.  */
+typedef struct
+  {
+    unsigned long int __sigbits[4];
+  } __sigset_t;
+
+#endif	/* ! _SIGSET_H_types */
+
+/* We only want to define these functions if <signal.h> was actually
+   included; otherwise we were included just to define the types.  Since we
+   are namespace-clean, it wouldn't hurt to define extra macros.  But
+   trouble can be caused by functions being defined (e.g., any global
+   register vars declared later will cause compilation errors).  */
+
+#if !defined (_SIGSET_H_fns) && defined (_SIGNAL_H)
+#define _SIGSET_H_fns 1
+
+/* Return a mask that includes SIG only.  */
+#define	__sigmask(sig)	(1 << ((sig) - 1))
+
+
+/* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */
+#define	__NSSBITS	(sizeof (__sigset_t) * 8)
+#define	__SSELT(s)	((s) / __NSSBITS)
+#define	__SSMASK(s)	(1 << ((s) % __NSSBITS))
+
+#ifndef _EXTERN_INLINE
+#define _EXTERN_INLINE	extern __inline
+#endif
+
+_EXTERN_INLINE int
+__sigemptyset (__sigset_t *__set)
+{
+  __set->__sigbits[0] = __set->__sigbits[1] =
+    __set->__sigbits[2] = __set->__sigbits[3] = 0L;
+  return 0;
+}
+
+_EXTERN_INLINE int
+__sigfillset (__sigset_t *__set)
+{
+  /* SVR4 has a system call for `sigfillset' (!), and it only sets the bits
+     for signals [1,31].  Setting bits for unimplemented signals seems
+     harmless (and we will find out if it really is).  */
+  __set->__sigbits[0] = __set->__sigbits[1] =
+    __set->__sigbits[2] = __set->__sigbits[3] = -1;
+  return 0;
+}
+
+_EXTERN_INLINE int
+__sigaddset (__sigset_t *__set, int __sig)
+{
+  __set->__sigbits[__SSELT (__sig)] |= __SSMASK (__sig);
+  return 0;
+}
+
+_EXTERN_INLINE int
+__sigdelset (__sigset_t *__set, int __sig)
+{
+  __set->__sigbits[__SSELT (__sig)] &= ~__SSMASK (__sig);
+  return 0;
+}
+
+_EXTERN_INLINE int
+__sigismember (__const __sigset_t *__set, int __sig)
+{
+  if (__set->__sigbits[__SSELT (__sig)] & __SSMASK (__sig))
+    return 1;
+  return 0;
+}
+
+#endif /* ! _SIGSET_H_fns */
+
diff --git a/sysdeps/unix/sysv/sysv4/sigsuspend.S b/sysdeps/unix/sysv/sysv4/sigsuspend.S
new file mode 100644
index 0000000000..85d36017b8
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigsuspend.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (sigsuspend, 1)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/Makefile b/sysdeps/unix/sysv/sysv4/solaris2/Makefile
new file mode 100644
index 0000000000..3f86c46cc8
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/Makefile
@@ -0,0 +1,6 @@
+# The linker supplied with Solaris looks in the current directory
+# before searching others.  Compiling the various programs that come
+# along the way (e.g., glue-ctype) will fail because it'll try to link
+# with the libc.a being *constructed* in $(objdir).  As a work-around,
+# we add this to each native-compile.
+BUILD_CFLAGS := $(BUILD_CFLAGS) -L/lib
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/direct.h b/sysdeps/unix/sysv/sysv4/solaris2/direct.h
new file mode 100644
index 0000000000..f9822dcbc5
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/direct.h
@@ -0,0 +1,39 @@
+/* Copyright (C) 1992, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	   _BSDDIR_H
+#define	   _BSDDIR_H	1
+
+#include <limits.h>
+
+/* This is the Solaris direct; it's the same as that in
+   sysdeps/unix/sysv/sysv4/direct.h, but it uses the length given by d_namlen,
+   since we can't reliably use tyhe sysv4/direct.h method of computing
+   the length.  */
+
+struct direct
+  {
+    unsigned long int d_fileno;
+    long int d_off;
+    unsigned short int d_reclen;
+    char d_name[NAME_MAX + 1];
+  };
+
+#define D_NAMLEN(d) (strlen ((d)->d_name))
+
+#endif
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/fsync.S b/sysdeps/unix/sysv/sysv4/solaris2/fsync.S
new file mode 100644
index 0000000000..aefa3e3af7
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/fsync.S
@@ -0,0 +1,29 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* Solaris uses fdsync for the normal fsync.  */
+ENTRY(fsync)
+	mov 16, %i1
+	mov SYS_ify(fdsync), %g1
+	ta 8
+	bcs syscall_error
+	nop
+	mov %g0, %o0
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/signum.h b/sysdeps/unix/sysv/sysv4/solaris2/signum.h
new file mode 100644
index 0000000000..8219626c3e
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/signum.h
@@ -0,0 +1,73 @@
+/* Signal number definitions.  Solaris 2 version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifdef	_SIGNAL_H
+
+/* Fake signal functions.  */
+#define	SIG_ERR	((__sighandler_t) -1) /* Error return.  */
+#define	SIG_DFL	((__sighandler_t) 0) /* Default action.  */
+#define	SIG_IGN	((__sighandler_t) 1) /* Ignore signal.  */
+
+
+/* Signals.  */
+#define	SIGHUP		1	/* Hangup (POSIX).  */
+#define	SIGINT		2	/* Interrupt (ANSI).  */
+#define	SIGQUIT		3	/* Quit (POSIX).  */
+#define	SIGILL		4	/* Illegal instruction (ANSI).  */
+#define	SIGABRT		SIGIOT	/* Abort (ANSI).  */
+#define	SIGTRAP		5	/* Trace trap (POSIX).  */
+#define	SIGIOT		6	/* IOT trap (4.2 BSD).  */
+#define	SIGEMT		7	/* EMT trap (4.2 BSD).  */
+#define	SIGFPE		8	/* Floating-point exception (ANSI).  */
+#define	SIGKILL		9	/* Kill, unblockable (POSIX).  */
+#define	SIGBUS		10	/* Bus error (4.2 BSD).  */
+#define	SIGSEGV		11	/* Segmentation violation (ANSI).  */
+#define	SIGSYS		12	/* Bad argument to system call (4.2 BSD)*/
+#define	SIGPIPE		13	/* Broken pipe (POSIX).  */
+#define	SIGALRM		14	/* Alarm clock (POSIX).  */
+#define	SIGTERM		15	/* Termination (ANSI).  */
+#define	SIGUSR1		16	/* User-defined signal 1 (POSIX).  */
+#define	SIGUSR2		17	/* User-defined signal 2 (POSIX).  */
+#define	SIGCHLD		18	/* Child status has changed (POSIX).  */
+#define	SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
+#define	SIGPWR		19	/* Power failure restart (System V).  */
+#define	SIGWINCH	20	/* Window size change (4.3 BSD, Sun).  */
+#define	SIGURG		21	/* Urgent condition on socket (4.2 BSD).*/
+#define	SIGPOLL		22	/* Pollable event occurred (System V).  */
+#define	SIGIO		SIGPOLL	/* I/O now possible (4.2 BSD).  */
+#define	SIGSTOP		23	/* Stop, unblockable (POSIX).  */
+#define	SIGTSTP		24	/* Keyboard stop (POSIX).  */
+#define	SIGCONT		25	/* Continue (POSIX).  */
+#define	SIGTTIN		26	/* Background read from tty (POSIX).  */
+#define	SIGTTOU		27	/* Background write to tty (POSIX).  */
+#define	SIGVTALRM	28	/* Virtual alarm clock (4.2 BSD).  */
+#define	SIGPROF		29	/* Profiling alarm clock (4.2 BSD).  */
+#define	SIGXCPU		30	/* CPU limit exceeded (4.2 BSD).  */
+#define	SIGXFSZ		31	/* File size limit exceeded (4.2 BSD).  */
+/* The following signals are new in Solaris 2.  */
+#define	SIGWAITING	32	/* Process's lwps are blocked.  */
+#define	SIGLWP		33	/* Special signal used by thread library.  */
+#define	SIGFREEZE	34	/* Special signal used by CPR.  */
+#define	SIGTHAW		35	/* Special signal used by CPR.  */
+#define	_SIGRTMIN	36	/* First (highest-priority) realtime signal. */
+#define	_SIGRTMAX	43	/* Last (lowest-priority) realtime signal.  */
+
+#endif	/* <signal.h> included.  */
+
+#define	_NSIG		44	/* Biggest signal number + 1.  */
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/sparc/Dist b/sysdeps/unix/sysv/sysv4/solaris2/sparc/Dist
new file mode 100644
index 0000000000..69d16ac6bf
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/sparc/Dist
@@ -0,0 +1 @@
+sys-sig.S
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/sparc/Makefile b/sysdeps/unix/sysv/sysv4/solaris2/sparc/Makefile
new file mode 100644
index 0000000000..7ad4bb1633
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/sparc/Makefile
@@ -0,0 +1,5 @@
+# This flag is necessary because GCC now tries to call _Q_{mul, etc...}
+# instead of doing the stuff the hard way.  For now, printf_fp.o, __vfscanf.o,
+# and difftime.o don't work because of this.  The long-term fix is to actually
+# implement what they're doing, but for the short-term, we must do this.
+sysdep-CFLAGS := $(sysdep-CFLAGS) -mhard-quad-float
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/sparc/start.c b/sysdeps/unix/sysv/sysv4/solaris2/sparc/start.c
new file mode 100644
index 0000000000..afdfaaa2e5
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/sparc/start.c
@@ -0,0 +1,4 @@
+#define NO_SHLIB
+/* Solaris needs start named `_start', not `start'.  */
+#define NO_EXPLICIT_START
+#include <sysdeps/unix/sparc/start.c>
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/sparc/sys-sig.S b/sysdeps/unix/sysv/sysv4/solaris2/sparc/sys-sig.S
new file mode 100644
index 0000000000..8baa997e80
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/sparc/sys-sig.S
@@ -0,0 +1,25 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+PSEUDO (__sigaction_syscall, sigaction, 3)
+	ret
+
+PSEUDO (__context_syscall, context, 2)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.S b/sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.S
new file mode 100644
index 0000000000..da3cd6b8be
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.S
@@ -0,0 +1,46 @@
+/* Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+#define _ERRNO_H
+#include <errnos.h>
+
+ENTRY(syscall_error)
+	/* If it was a syscall that got interrupted, but can
+	   be restarted, drop EINTR in.  */
+	cmp %o0, ERESTART
+	be,a notint
+	mov EINTR, %o0
+
+notint:
+#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
+	/* We translate the system's EWOULDBLOCK error into EAGAIN.
+	   The GNU C library always defines EWOULDBLOCK==EAGAIN.
+	   EWOULDBLOCK_sys is the original number.  */
+	cmp %o0, EWOULDBLOCK_sys
+	be,a notblock
+	mov EAGAIN, %o0
+#endif
+
+notblock:/* Store it in errno... */
+	sethi %hi(C_SYMBOL_NAME(errno)), %g1
+	st %o0, [%g1 + %lo(C_SYMBOL_NAME(errno))]
+
+	/* And just kick back a -1.  */
+	retl
+	mov -1, %o0
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h b/sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h
new file mode 100644
index 0000000000..edb98309e6
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h
@@ -0,0 +1,51 @@
+/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Solaris 2 does not precede the asm names of C symbols with a `_'. */
+#define	NO_UNDERSCORES
+
+#include <sysdeps/unix/sysdep.h>
+
+#ifdef	ASSEMBLER
+
+/* As of gcc-2.6.0, it complains about pound signs in front of things
+   that aren't arguments to the macro.  So we use this to pull it off
+   instead.  */
+#define cat(a,b) a##b
+#define poundfnc cat(#,function)
+
+#define	ENTRY(name)							      \
+  .section ".text";							      \
+  .align 4;								      \
+  .global C_SYMBOL_NAME(name);						      \
+  .type  C_SYMBOL_NAME(name), poundfnc;					      \
+  C_LABEL(name)
+
+#define	PSEUDO(name, syscall_name, args)				      \
+  ENTRY (name)								      \
+  mov SYS_ify(syscall_name), %g1;				   	      \
+  ta 8;									      \
+  bcs C_SYMBOL_NAME(syscall_error);					      \
+  nop
+
+#define	ret		retl; nop
+#define	r0		%o0
+#define	r1		%o1
+#define	MOVE(x,y)	mov x, y
+
+#endif	/* ASSEMBLER */
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/statbuf.h b/sysdeps/unix/sysv/sysv4/solaris2/statbuf.h
new file mode 100644
index 0000000000..ac74cdffa7
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/statbuf.h
@@ -0,0 +1,82 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_STATBUF_H
+#define	_STATBUF_H
+
+#include <gnu/types.h>
+
+/* Structure describing file characteristics.  */
+struct stat
+  {
+    unsigned long int st_dev;
+    long st_filler1[3];
+    __ino_t st_ino;		/* File serial number.		*/
+    unsigned long int st_mode;	/* File mode.  */
+    /* This is unsigned long instead of __nlink_t, since SVR4 has
+       a long nlink_t, not a short one.  */
+    unsigned long int st_nlink;	/* Link count.  */
+    __uid_t st_uid;		/* User ID of the file's owner.	*/
+    __gid_t st_gid;		/* Group ID of the file's group.*/
+    unsigned long int st_rdev;	/* Device number, if device.  */
+    long st_filler2[2];
+
+    __off_t st_size;		/* Size of file, in bytes.  */
+    /* SVR4 added this extra long to allow for expansion of off_t.  */ 
+    long st_filler3;
+
+    __time_t st_atime;		/* Time of last access.  */
+    unsigned long int st_atime_usec;
+    __time_t st_mtime;		/* Time of last modification.  */
+    unsigned long int st_mtime_usec;
+    __time_t st_ctime;		/* Time of last status change.  */
+    unsigned long int st_ctime_usec;
+
+    long st_blksize;		/* Optimal block size for I/O.  */
+#define	_STATBUF_ST_BLKSIZE	/* Tell code we have this member.  */
+
+    long st_blocks;		/* Number of 512-byte blocks allocated.  */
+    char st_fstype[16];
+    long st_filler4[8];
+  };
+
+/* Encoding of the file mode.  */
+
+#define	__S_IFMT	0170000	/* These bits determine file type.  */
+
+/* File types.  */
+#define	__S_IFDIR	0040000	/* Directory.  */
+#define	__S_IFCHR	0020000	/* Character device.  */
+#define	__S_IFBLK	0060000	/* Block device.  */
+#define	__S_IFREG	0100000	/* Regular file.  */
+#define	__S_IFIFO	0010000	/* FIFO.  */
+
+/* These don't actually exist on System V, but having them doesn't hurt.  */
+#define	__S_IFLNK	0120000	/* Symbolic link.  */
+#define	__S_IFSOCK	0140000	/* Socket.  */
+
+/* Protection bits.  */
+
+#define	__S_ISUID	04000	/* Set user ID on execution.  */
+#define	__S_ISGID	02000	/* Set group ID on execution.  */
+#define	__S_ISVTX	01000	/* Save swapped text after use (sticky).  */
+#define	__S_IREAD	0400	/* Read by owner.  */
+#define	__S_IWRITE	0200	/* Write by owner.  */
+#define	__S_IEXEC	0100	/* Execute by owner.  */
+
+#endif	/* statbuf.h */
diff --git a/sysdeps/unix/sysv/sysv4/solaris2/utimes.S b/sysdeps/unix/sysv/sysv4/solaris2/utimes.S
new file mode 100644
index 0000000000..54a043c835
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/solaris2/utimes.S
@@ -0,0 +1,2 @@
+/* Solaris has the BSD `utimes' function.  */
+#include <sysdeps/unix/bsd/utimes.S>
diff --git a/sysdeps/unix/sysv/sysv4/sysconf.c b/sysdeps/unix/sysv/sysv4/sysconf.c
new file mode 100644
index 0000000000..607cd05d14
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sysconf.c
@@ -0,0 +1,181 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <time.h>
+#include <sysconfig.h>
+
+extern int EXFUN(__sysconfig, (int));
+
+/* Get the value of the system variable NAME.  */
+long int
+DEFUN(__sysconf, (name), int name)
+{
+  switch (name)
+    {
+    default:
+      errno = EINVAL;
+      return -1;
+
+    case _SC_ARG_MAX:
+#ifdef	ARG_MAX
+      return ARG_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_CHILD_MAX:
+#ifdef	CHILD_MAX
+      return CHILD_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_CLK_TCK:
+      return __sysconfig (_CONFIG_CLK_TCK);
+
+    case _SC_NGROUPS_MAX:
+#ifdef	NGROUPS_MAX
+      return NGROUPS_MAX;
+#else
+      return -1;
+#endif
+
+      /* Both of these are looking for _CONFIG_OPEN_FILES.  */
+    case _SC_OPEN_MAX:
+    case _SC_STREAM_MAX:
+      return __sysconfig (_CONFIG_OPEN_FILES);
+
+    case _SC_TZNAME_MAX:
+      return __tzname_max ();
+
+    case _SC_JOB_CONTROL:
+#ifdef	_POSIX_JOB_CONTROL
+      return 1;
+#else
+      return -1;
+#endif
+    case _SC_SAVED_IDS:
+#ifdef	_POSIX_SAVED_IDS
+      return 1;
+#else
+      return -1;
+#endif
+    case _SC_VERSION:
+      return _POSIX_VERSION;
+
+    case _SC_PAGESIZE:
+      return __sysconfig (_CONFIG_PAGESIZE);
+
+    case _SC_BC_BASE_MAX:
+#ifdef	BC_BASE_MAX
+      return BC_BASE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_DIM_MAX:
+#ifdef	BC_DIM_MAX
+      return BC_DIM_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_SCALE_MAX:
+#ifdef	BC_SCALE_MAX
+      return BC_SCALE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_STRING_MAX:
+#ifdef	BC_STRING_MAX
+      return BC_STRING_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_EQUIV_CLASS_MAX:
+#ifdef	EQUIV_CLASS_MAX
+      return EQUIV_CLASS_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_EXPR_NEST_MAX:
+#ifdef	EXPR_NEST_MAX
+      return EXPR_NEST_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_LINE_MAX:
+#ifdef	LINE_MAX
+      return LINE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_RE_DUP_MAX:
+#ifdef	RE_DUP_MAX
+      return RE_DUP_MAX;
+#else
+      return -1;
+#endif
+
+
+    case _SC_2_VERSION:
+      /* This is actually supposed to return the version
+	 of the 1003.2 utilities on the system {POSIX2_VERSION}.  */
+      return _POSIX2_C_VERSION;
+
+    case _SC_2_C_BIND:
+#ifdef	_POSIX2_C_BIND
+      return _POSIX2_C_BIND;
+#else
+      return -1;
+#endif
+
+    case _SC_2_C_DEV:
+#ifdef	_POSIX2_C_DEV
+      return _POSIX2_C_DEV;
+#else
+      return -1;
+#endif
+
+    case _SC_2_FORT_DEV:
+#ifdef	_POSIX2_FORT_DEV
+      return _POSIX2_FORT_DEV;
+#else
+      return -1;
+#endif
+
+    case _SC_2_SW_DEV:
+#ifdef	_POSIX2_SW_DEV
+      return _POSIX2_SW_DEV;
+#else
+      return -1;
+#endif
+    }
+}
+
+weak_alias (__sysconf, sysconf)
diff --git a/sysdeps/unix/sysv/sysv4/sysconfig.S b/sysdeps/unix/sysv/sysv4/sysconfig.S
new file mode 100644
index 0000000000..034e012e84
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sysconfig.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (sysconfig, 1)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/sysconfig.h b/sysdeps/unix/sysv/sysv4/sysconfig.h
new file mode 100644
index 0000000000..77c84c7af6
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sysconfig.h
@@ -0,0 +1,28 @@
+/* `__sysconfig' NAME values.
+   Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef __SYSCONFIG_H
+#define __SYSCONFIG_H
+
+#define _CONFIG_OPEN_FILES 4	/* process limit on open files */
+#define _CONFIG_PAGESIZE 6	/* MMU page size */
+#define _CONFIG_CLK_TCK 7	/* all times are in CLK_TCKths of a second */
+
+#endif
+
diff --git a/sysdeps/unix/sysv/sysv4/sysinfo.S b/sysdeps/unix/sysv/sysv4/sysinfo.S
new file mode 100644
index 0000000000..c279c96e9c
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sysinfo.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+PSEUDO (__sysinfo, systeminfo, 3)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/system.c b/sysdeps/unix/sysv/sysv4/system.c
new file mode 100644
index 0000000000..fbfe43f19a
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/system.c
@@ -0,0 +1,2 @@
+/* SVR4 does have `waitpid'.  Avoid unix/system.c, which says we don't.  */
+#include <sysdeps/posix/system.c>
diff --git a/sysdeps/unix/sysv/sysv4/time.S b/sysdeps/unix/sysv/sysv4/time.S
new file mode 100644
index 0000000000..61f3514fb7
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/time.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (time, 1)
+	ret
diff --git a/sysdeps/unix/sysv/sysv4/utsnamelen.h b/sysdeps/unix/sysv/sysv4/utsnamelen.h
new file mode 100644
index 0000000000..9dcc618068
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/utsnamelen.h
@@ -0,0 +1 @@
+#define _UTSNAME_LENGTH 257
diff --git a/sysdeps/unix/sysv/sysv4/waitflags.h b/sysdeps/unix/sysv/sysv4/waitflags.h
new file mode 100644
index 0000000000..cdb6f29e1d
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/waitflags.h
@@ -0,0 +1,34 @@
+/* Definitions of flag bits for `waitpid' et al.
+   Copyright (C) 1993 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_WAITFLAGS_H
+
+#define	_WAITFLAGS_H	1
+
+/* Bits in the third argument to `waitpid'.  */
+#define	WNOHANG		64	/* Don't block waiting.  */
+#define	WUNTRACED	4	/* Report status of stopped children.  */
+
+#ifdef __USE_SVID
+#define WEXITED		1	/* Look for children that have exited.  */
+#define WTRAPPED	2	/* Look for processes that stopped
+				   while tracing.  */
+#endif
+
+#endif	/* waitflags.h */
diff --git a/sysdeps/unix/sysv/sysv4/waitpid.c b/sysdeps/unix/sysv/sysv4/waitpid.c
new file mode 100644
index 0000000000..f54df4bf6b
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/waitpid.c
@@ -0,0 +1,120 @@
+/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <stddef.h>
+#include "siginfo.h"
+
+typedef enum __idtype
+  {
+    /* Look for processes based upon a given PID.  */
+    P_PID,
+
+    /* Look for processes based upon a given process-group ID.  */
+    P_PGID = 2,
+
+    /* Look for any process.  */
+    P_ALL = 7,
+  } __idtype_t;
+
+extern __pid_t __getpgid __P ((__pid_t pid));
+extern int __waitid __P ((__idtype_t idtype, __pid_t id,
+			  __siginfo_t *infop, int options));
+
+/* Wait for a child matching PID to die.
+   If PID is greater than 0, match any process whose process ID is PID.
+   If PID is (pid_t) -1, match any process.
+   If PID is (pid_t) 0, match any process with the
+   same process group as the current process.
+   If PID is less than -1, match any process whose
+   process group is the absolute value of PID.
+   If the WNOHANG bit is set in OPTIONS, and that child
+   is not already dead, return (pid_t) 0.  If successful,
+   return PID and store the dead child's status in STAT_LOC.
+   Return (pid_t) -1 for errors.  If the WUNTRACED bit is set in OPTIONS,
+   return status for stopped children; otherwise don't.  */
+
+__pid_t
+DEFUN(__waitpid, (pid, stat_loc, options),
+      __pid_t pid AND int *stat_loc AND int options)
+{
+  __idtype_t idtype;
+  __pid_t tmp_pid = pid;
+  __siginfo_t infop;
+
+  if (pid <= WAIT_MYPGRP)
+    {
+      if (pid == WAIT_ANY)
+	{
+	  /* Request the status for any child.  */
+	  idtype = P_ALL;
+	}
+      else if (pid == WAIT_MYPGRP)
+	{
+	  /* Request the status for any child process that has
+	     a pgid that's equal to that of our parent.  */
+	  tmp_pid = __getpgid (0);
+	  idtype = P_PGID;
+	}
+      else /* PID < -1 */
+	{
+	  /* Request the status for any child whose pgid is equal
+	     to the absolute value of PID.  */
+	  tmp_pid = pid & ~0; /* XXX not pseudo-insn */
+	  idtype = P_PGID;
+	}
+    }
+  else
+    {
+      /* Request the status for the child whose pid is PID.  */
+      idtype = P_PID;
+    }
+
+  if (__waitid (idtype, tmp_pid, &infop, options | WEXITED | WTRAPPED) < 0)
+    return -1;
+
+  switch (infop.__code)
+    {
+    case EXITED:
+      *stat_loc = W_EXITCODE (infop.__status, 0);
+      break;
+    case STOPPED:
+    case TRAPPED:
+      *stat_loc = W_STOPCODE (infop.__status);
+      break;
+    case KILLED:
+      /* Don't know what to do with continue, since it isn't documented.
+	 Putting it here seemed the right place though. */
+    case CONTINUED:
+      *stat_loc = infop.__status;
+      /* FALLTHROUGH */
+    case CORED:
+      *stat_loc |= WCOREFLAG;
+      break;
+    }
+
+  /* Return the PID out of the INFOP structure instead of the one we were
+     called with, to account for cases of being called with -1 to signify
+     any PID.  */
+  return infop.__pid;
+}
+
+weak_alias (__waitpid, waitpid)
diff --git a/sysdeps/unix/sysv/sysv_termio.h b/sysdeps/unix/sysv/sysv_termio.h
new file mode 100644
index 0000000000..c1c5d72b4f
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv_termio.h
@@ -0,0 +1,155 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* In various parts of this file we define the System V values for
+   things as _SYSV_<whatever>.  Those are the values that System V
+   uses for termio, and also (SVR4) termios.  Not necessarily the
+   same as the GNU termios that the library user sees.  */
+
+/* Number of elements of c_cc.  termio only.  */
+#define _SYSV_NCC 8
+
+#define _SYSV_VINTR 0
+#define _SYSV_VQUIT 1
+#define _SYSV_VERASE 2
+#define _SYSV_VKILL 3
+#define _SYSV_VEOF 4
+/* This field means VEOF if ICANON, VMIN if not.  */
+#define _SYSV_VMIN 4
+#define _SYSV_VEOL 5
+/* This field means VEOL if ICANON, VTIME if not.  */
+#define _SYSV_VTIME 5
+#define _SYSV_VEOL2 6
+
+/* Flags in c_iflag.  */
+#define _SYSV_IGNBRK 1
+#define _SYSV_BRKINT 2
+#define _SYSV_IGNPAR 4
+#define _SYSV_PARMRK 8
+#define _SYSV_INPCK 0x10
+#define _SYSV_ISTRIP 0x20
+#define _SYSV_INLCR 0x40
+#define _SYSV_IGNCR 0x80
+#define _SYSV_ICRNL 0x100
+#define _SYSV_IUCLC 0x200
+#define _SYSV_IXON 0x400
+#define _SYSV_IXANY 0x800
+#define _SYSV_IXOFF 0x1000
+#define _SYSV_IMAXBEL 0x2000
+
+/* Flags in c_cflag.  */
+#define _SYSV_CBAUD 0xf
+#define _SYSV_CIBAUD 0xf0000	/* termios only.  */
+#define _SYSV_IBSHIFT 16
+/* Values for CBAUD and CIBAUD.  */
+#define _SYSV_B0 0
+#define _SYSV_B50 1
+#define _SYSV_B75 2
+#define _SYSV_B110 3
+#define _SYSV_B134 4
+#define _SYSV_B150 5
+#define _SYSV_B200 6
+#define _SYSV_B300 7
+#define _SYSV_B600 8
+#define _SYSV_B1200 9
+#define _SYSV_B1800 10
+#define _SYSV_B2400 11
+#define _SYSV_B4800 12
+#define _SYSV_B9600 13
+#define _SYSV_B19200 14
+#define _SYSV_B38400 15
+
+#define _SYSV_CS5 0
+#define _SYSV_CS6 0x10
+#define _SYSV_CS7 0x20
+#define _SYSV_CS8 0x30
+#define _SYSV_CSIZE 0x30
+#define _SYSV_CSTOPB 0x40
+#define _SYSV_CREAD 0x80
+#define _SYSV_PARENB 0x100
+#define _SYSV_PARODD 0x200
+#define _SYSV_HUPCL 0x400
+#define _SYSV_CLOCAL 0x800
+
+/* Flags in c_lflag.  */
+#define _SYSV_ISIG 1
+#define _SYSV_ICANON 2
+#define _SYSV_ECHO 8
+#define _SYSV_ECHOE 0x10
+#define _SYSV_ECHOK 0x20
+#define _SYSV_ECHONL 0x40
+#define _SYSV_NOFLSH 0x80
+#define _SYSV_TOSTOP 0x100
+#define _SYSV_ECHOCTL 0x200
+#define _SYSV_ECHOPRT 0x400
+#define _SYSV_ECHOKE 0x800
+#define _SYSV_FLUSHO 0x2000
+#define _SYSV_PENDIN 0x4000
+#define _SYSV_IEXTEN 0x8000
+
+/* Flags in c_oflag.  */
+#define _SYSV_OPOST 1
+#define _SYSV_OLCUC 2
+#define _SYSV_ONLCR 4
+#define _SYSV_NLDLY 0x100
+#define _SYSV_NL0 0
+#define _SYSV_NL1 0x100
+#define _SYSV_CRDLY 0x600
+#define _SYSV_CR0 0
+#define _SYSV_CR1 0x200
+#define _SYSV_CR2 0x400
+#define _SYSV_CR3 0x600
+#define _SYSV_TABDLY 0x1800
+#define _SYSV_TAB0 0
+#define _SYSV_TAB1 0x0800
+#define _SYSV_TAB2 0x1000
+/* TAB3 is an obsolete name for XTABS.  But we provide it since some
+   programs expect it to exist.  */
+#define _SYSV_TAB3 0x1800
+#define _SYSV_XTABS 0x1800
+#define _SYSV_BSDLY 0x2000
+#define _SYSV_BS0 0
+#define _SYSV_BS1 0x2000
+#define _SYSV_VTDLY 0x4000
+#define _SYSV_VT0 0
+#define _SYSV_VT1 0x4000
+#define _SYSV_FFDLY 0x8000
+#define _SYSV_FF0 0
+#define _SYSV_FF1 0x8000
+
+/* ioctl's.  */
+
+#define _TCGETA 0x5401
+#define _TCSETA 0x5402
+#define _TCSETAW 0x5403
+#define _TCSETAF 0x5404
+#define _TCSBRK 0x5405
+#define _TCXONC 0x5406
+#define _TCFLSH 0x5407
+#define _TIOCGPGRP 0x7414
+#define _TIOCSPGRP 0x7415
+
+struct __sysv_termio
+  {
+    unsigned short c_iflag;
+    unsigned short c_oflag;
+    unsigned short c_cflag;
+    unsigned short c_lflag;
+    char c_line;
+    unsigned char c_cc[_SYSV_NCC];
+  };
diff --git a/sysdeps/unix/sysv/tcdrain.c b/sysdeps/unix/sysv/tcdrain.c
new file mode 100644
index 0000000000..37144799e4
--- /dev/null
+++ b/sysdeps/unix/sysv/tcdrain.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sysv_termio.h>
+#include <sys/ioctl.h>
+
+/* Wait for pending output to be written on FD.  */
+int
+DEFUN(tcdrain, (fd), int fd)
+{
+  /* With an argument of 1, TCSBRK just waits for output to drain.  */
+  return __ioctl (fd, _TCSBRK, 1);
+}
diff --git a/sysdeps/unix/sysv/tcflow.c b/sysdeps/unix/sysv/tcflow.c
new file mode 100644
index 0000000000..fecb40dd82
--- /dev/null
+++ b/sysdeps/unix/sysv/tcflow.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+#include "sysv_termio.h"
+
+/* Suspend or restart transmission on FD.  */
+int
+DEFUN(tcflow, (fd, action), int fd AND int action)
+{
+  switch (action)
+    {
+    case TCOOFF:
+      return __ioctl (fd, _TCXONC, 0);
+    case TCOON:
+      return __ioctl (fd, _TCXONC, 1);
+    case TCIOFF:
+      return __ioctl (fd, _TCXONC, 2);
+    case TCION:
+      return __ioctl (fd, _TCXONC, 3);
+    default:
+      errno = EINVAL;
+      return -1;
+    }
+}
diff --git a/sysdeps/unix/sysv/tcflush.c b/sysdeps/unix/sysv/tcflush.c
new file mode 100644
index 0000000000..88574a5c4b
--- /dev/null
+++ b/sysdeps/unix/sysv/tcflush.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+#include <sysv_termio.h>
+
+/* Flush pending data on FD.  */
+int
+DEFUN(tcflush, (fd, queue_selector), int fd AND int queue_selector)
+{
+  switch (queue_selector)
+    {
+    case TCIFLUSH:
+      return __ioctl (fd, _TCFLSH, 0);
+    case TCOFLUSH:
+      return __ioctl (fd, _TCFLSH, 1);
+    case TCIOFLUSH:
+      return __ioctl (fd, _TCFLSH, 2);
+    default:
+      errno = EINVAL;
+      return -1;
+    }
+}
diff --git a/sysdeps/unix/sysv/tcgetattr.c b/sysdeps/unix/sysv/tcgetattr.c
new file mode 100644
index 0000000000..dd914a2955
--- /dev/null
+++ b/sysdeps/unix/sysv/tcgetattr.c
@@ -0,0 +1,171 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <sysv_termio.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+
+/* Put the state of FD into *TERMIOS_P.  */
+int
+DEFUN(__tcgetattr, (fd, termios_p),
+      int fd AND struct termios *termios_p)
+{
+  struct __sysv_termio buf;
+  int termio_speed;
+
+  if (termios_p == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (__ioctl (fd, _TCGETA, &buf) < 0)
+    return -1;
+
+  termio_speed = buf.c_cflag & _SYSV_CBAUD;
+  termios_p->__ospeed =
+    (termio_speed == _SYSV_B0 ? 0 :
+     termio_speed == _SYSV_B50 ? 50 :
+     termio_speed == _SYSV_B75 ? 75 :
+     termio_speed == _SYSV_B110 ? 110 :
+     termio_speed == _SYSV_B134 ? 134 :
+     termio_speed == _SYSV_B150 ? 150 :
+     termio_speed == _SYSV_B200 ? 200 :
+     termio_speed == _SYSV_B300 ? 300 :
+     termio_speed == _SYSV_B600 ? 600 :
+     termio_speed == _SYSV_B1200 ? 1200 :
+     termio_speed == _SYSV_B1800 ? 1800 :
+     termio_speed == _SYSV_B2400 ? 2400 :
+     termio_speed == _SYSV_B4800 ? 4800 :
+     termio_speed == _SYSV_B9600 ? 9600 :
+     termio_speed == _SYSV_B19200 ? 19200 :
+     termio_speed == _SYSV_B38400 ? 38400 :
+     -1);
+  termios_p->__ispeed = termios_p->__ospeed;
+
+  termios_p->c_iflag = 0;
+  if (buf.c_iflag & _SYSV_IGNBRK)
+    termios_p->c_iflag |= IGNBRK;
+  if (buf.c_iflag & _SYSV_BRKINT)
+    termios_p->c_iflag |= BRKINT;
+  if (buf.c_iflag & _SYSV_IGNPAR)
+    termios_p->c_iflag |= IGNPAR;
+  if (buf.c_iflag & _SYSV_PARMRK)
+    termios_p->c_iflag |= PARMRK;
+  if (buf.c_iflag & _SYSV_INPCK)
+    termios_p->c_iflag |= INPCK;
+  if (buf.c_iflag & _SYSV_ISTRIP)
+    termios_p->c_iflag |= ISTRIP;
+  if (buf.c_iflag & _SYSV_INLCR)
+    termios_p->c_iflag |= INLCR;
+  if (buf.c_iflag & _SYSV_IGNCR)
+    termios_p->c_iflag |= IGNCR;
+  if (buf.c_iflag & _SYSV_ICRNL)
+    termios_p->c_iflag |= ICRNL;
+  if (buf.c_iflag & _SYSV_IXON)
+    termios_p->c_iflag |= IXON;
+  if (buf.c_iflag & _SYSV_IXOFF)
+    termios_p->c_iflag |= IXOFF;
+  if (buf.c_iflag & _SYSV_IXANY)
+    termios_p->c_iflag |= IXANY;
+  if (buf.c_iflag & _SYSV_IMAXBEL)
+    termios_p->c_iflag |= IMAXBEL;
+
+  termios_p->c_oflag = 0;
+  if (buf.c_oflag & OPOST)
+    termios_p->c_oflag |= OPOST;
+  if (buf.c_oflag & ONLCR)
+    termios_p->c_oflag |= ONLCR;
+  termios_p->c_cflag = 0;
+  switch (buf.c_cflag & _SYSV_CSIZE)
+    {
+    case _SYSV_CS5:
+      termios_p->c_cflag |= CS5;
+      break;
+    case _SYSV_CS6:
+      termios_p->c_cflag |= CS6;
+      break;
+    case _SYSV_CS7:
+      termios_p->c_cflag |= CS7;
+      break;
+    case _SYSV_CS8:
+      termios_p->c_cflag |= CS8;
+      break;
+    }
+  if (buf.c_cflag & _SYSV_CSTOPB)
+    termios_p->c_cflag |= CSTOPB;
+  if (buf.c_cflag & _SYSV_CREAD)
+    termios_p->c_cflag |= CREAD;
+  if (buf.c_cflag & _SYSV_PARENB)
+    termios_p->c_cflag |= PARENB;
+  if (buf.c_cflag & _SYSV_PARODD)
+    termios_p->c_cflag |= PARODD;
+  if (buf.c_cflag & _SYSV_HUPCL)
+    termios_p->c_cflag |= HUPCL;
+  if (buf.c_cflag & _SYSV_CLOCAL)
+    termios_p->c_cflag |= CLOCAL;
+  termios_p->c_lflag = 0;
+  if (buf.c_lflag & _SYSV_ISIG)
+    termios_p->c_lflag |= _ISIG;
+  if (buf.c_lflag & _SYSV_ICANON)
+    termios_p->c_lflag |= _ICANON;
+  if (buf.c_lflag & _SYSV_ECHO)
+    termios_p->c_lflag |= _ECHO;
+  if (buf.c_lflag & _SYSV_ECHOE)
+    termios_p->c_lflag |= _ECHOE;
+  if (buf.c_lflag & _SYSV_ECHOK)
+    termios_p->c_lflag |= _ECHOK;
+  if (buf.c_lflag & _SYSV_ECHONL)
+    termios_p->c_lflag |= _ECHONL;
+  if (buf.c_lflag & _SYSV_NOFLSH)
+    termios_p->c_lflag |= _NOFLSH;
+  if (buf.c_lflag & _SYSV_TOSTOP)
+    termios_p->c_lflag |= _TOSTOP;
+  if (buf.c_lflag & _SYSV_ECHOKE)
+    termios_p->c_lflag |= ECHOKE;
+  if (buf.c_lflag & _SYSV_ECHOPRT)
+    termios_p->c_lflag |= ECHOPRT;
+  if (buf.c_lflag & _SYSV_ECHOCTL)
+    termios_p->c_lflag |= ECHOCTL;
+  if (buf.c_lflag & _SYSV_FLUSHO)
+    termios_p->c_lflag |= FLUSHO;
+  if (buf.c_lflag & _SYSV_PENDIN)
+    termios_p->c_lflag |= PENDIN;
+  if (buf.c_lflag & _SYSV_IEXTEN)
+    termios_p->c_lflag |= IEXTEN;
+
+  termios_p->c_cc[VEOF] = buf.c_cc[_SYSV_VEOF];
+  termios_p->c_cc[VEOL] = buf.c_cc[_SYSV_VEOL];
+  termios_p->c_cc[VEOL2] = buf.c_cc[_SYSV_VEOL2];
+  termios_p->c_cc[VERASE] = buf.c_cc[_SYSV_VERASE];
+  termios_p->c_cc[VKILL] = buf.c_cc[_SYSV_VKILL];
+  termios_p->c_cc[VINTR] = buf.c_cc[_SYSV_VINTR];
+  termios_p->c_cc[VQUIT] = buf.c_cc[_SYSV_VQUIT];
+  termios_p->c_cc[VSTART] = '\021'; /* XON (^Q).  */
+  termios_p->c_cc[VSTOP] = '\023'; /* XOFF (^S).  */
+  termios_p->c_cc[VSUSP] = '\0'; /* System V release 3 lacks job control.  */
+  termios_p->c_cc[VMIN] = buf.c_cc[_SYSV_VMIN];
+  termios_p->c_cc[VTIME] = buf.c_cc[_SYSV_VTIME];
+
+  return 0;
+}
+
+weak_alias (__tcgetattr, tcgetattr)
diff --git a/sysdeps/unix/sysv/tcgetpgrp.c b/sysdeps/unix/sysv/tcgetpgrp.c
new file mode 100644
index 0000000000..d4c47227d0
--- /dev/null
+++ b/sysdeps/unix/sysv/tcgetpgrp.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <termios.h>
+#include <sysv_termio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+/* Return the foreground process group ID of FD.  */
+pid_t
+DEFUN(tcgetpgrp, (fd), int fd)
+{
+  int pgrp;
+  if (__ioctl(fd, _TIOCGPGRP, &pgrp) < 0)
+    return (pid_t) -1;
+  return (pid_t) pgrp;
+}
diff --git a/sysdeps/unix/sysv/tcsendbrk.c b/sysdeps/unix/sysv/tcsendbrk.c
new file mode 100644
index 0000000000..78fe2c542a
--- /dev/null
+++ b/sysdeps/unix/sysv/tcsendbrk.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <signal.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sysv_termio.h>
+#include <sys/ioctl.h>
+
+/* Send zero bits on FD.  */
+int
+DEFUN(tcsendbreak, (fd, duration), int fd AND int duration)
+{
+  /* The break lasts 0.25 to 0.5 seconds if DURATION is zero,
+     and an implementation-defined period if DURATION is nonzero.
+     We define a positive DURATION to be number of milliseconds to break.  */
+  if (duration <= 0)
+    return __ioctl (fd, _TCSBRK, 0);
+
+  /* ioctl can't send a break of any other duration for us.
+     This could be changed to use trickery (e.g. lower speed and
+     send a '\0') to send the break, but for now just return an error.  */
+  errno = EINVAL;
+  return -1;
+}
diff --git a/sysdeps/unix/sysv/tcsetattr.c b/sysdeps/unix/sysv/tcsetattr.c
new file mode 100644
index 0000000000..30e1b0b48d
--- /dev/null
+++ b/sysdeps/unix/sysv/tcsetattr.c
@@ -0,0 +1,208 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+
+#include <sysv_termio.h>
+
+
+CONST speed_t __unix_speeds[] =
+  {
+    0,
+    50,
+    75,
+    110,
+    134,
+    150,
+    200,
+    300,
+    600,
+    1200,
+    1800,
+    2400,
+    4800,
+    9600,
+    19200,
+    38400,
+  };
+
+
+/* Set the state of FD to *TERMIOS_P.  */
+int
+DEFUN(tcsetattr, (fd, optional_actions, termios_p),
+      int fd AND int optional_actions AND CONST struct termios *termios_p)
+{
+  struct __sysv_termio buf;
+  int ioctl_function;
+  size_t i;
+
+  if (termios_p == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  switch (optional_actions)
+    {
+    case TCSANOW:
+      ioctl_function = _TCSETA;
+      break;
+    case TCSADRAIN:
+      ioctl_function = _TCSETAW;
+      break;
+    case TCSAFLUSH:
+      ioctl_function = _TCSETAF;
+      break;
+    default:
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (termios_p->__ispeed != termios_p->__ospeed)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  buf.c_cflag = -1;
+  for (i = 0; i <= sizeof (__unix_speeds) / sizeof (__unix_speeds[0]); ++i)
+    {
+      if (__unix_speeds[i] == termios_p->__ispeed)
+	buf.c_cflag = i;
+    }
+  if (buf.c_cflag == -1)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  buf.c_iflag = 0;
+  if (termios_p->c_iflag & IGNBRK)
+    buf.c_iflag |= _SYSV_IGNBRK;
+  if (termios_p->c_iflag & BRKINT)
+    buf.c_iflag |= _SYSV_BRKINT;
+  if (termios_p->c_iflag & IGNPAR)
+    buf.c_iflag |= _SYSV_IGNPAR;
+  if (termios_p->c_iflag & PARMRK)
+    buf.c_iflag |= _SYSV_PARMRK;
+  if (termios_p->c_iflag & INPCK)
+    buf.c_iflag |= _SYSV_INPCK;
+  if (termios_p->c_iflag & ISTRIP)
+    buf.c_iflag |= _SYSV_ISTRIP;
+  if (termios_p->c_iflag & INLCR)
+    buf.c_iflag |= _SYSV_INLCR;
+  if (termios_p->c_iflag & IGNCR)
+    buf.c_iflag |= _SYSV_IGNCR;
+  if (termios_p->c_iflag & ICRNL)
+    buf.c_iflag |= _SYSV_ICRNL;
+  if (termios_p->c_iflag & IXON)
+    buf.c_iflag |= _SYSV_IXON;
+  if (termios_p->c_iflag & IXOFF)
+    buf.c_iflag |= _SYSV_IXOFF;
+  if (termios_p->c_iflag & IXANY)
+    buf.c_iflag |= _SYSV_IXANY;
+  if (termios_p->c_iflag & IMAXBEL)
+    buf.c_iflag |= _SYSV_IMAXBEL;
+
+  buf.c_oflag = 0;
+  if (termios_p->c_oflag & OPOST)
+    buf.c_oflag = _SYSV_OPOST;
+  if (termios_p->c_oflag & ONLCR)
+    buf.c_oflag = _SYSV_ONLCR;
+
+  /* So far, buf.c_cflag contains the speed in CBAUD.  */
+  if (termios_p->c_cflag & CSTOPB)
+    buf.c_cflag |= _SYSV_CSTOPB;
+  if (termios_p->c_cflag & CREAD)
+    buf.c_cflag |= _SYSV_CREAD;
+  if (termios_p->c_cflag & PARENB)
+    buf.c_cflag |= _SYSV_PARENB;
+  if (termios_p->c_cflag & PARODD)
+    buf.c_cflag |= _SYSV_PARODD;
+  if (termios_p->c_cflag & HUPCL)
+    buf.c_cflag |= _SYSV_HUPCL;
+  if (termios_p->c_cflag & CLOCAL)
+    buf.c_cflag |= _SYSV_CLOCAL;
+  switch (termios_p->c_cflag & CSIZE)
+    {
+    case CS5:
+      buf.c_cflag |= _SYSV_CS5;
+      break;
+    case CS6:
+      buf.c_cflag |= _SYSV_CS6;
+      break;
+    case CS7:
+      buf.c_cflag |= _SYSV_CS7;
+      break;
+    case CS8:
+      buf.c_cflag |= _SYSV_CS8;
+      break;
+    }
+
+  buf.c_lflag = 0;
+  if (termios_p->c_lflag & ISIG)
+    buf.c_lflag |= _SYSV_ISIG;
+  if (termios_p->c_lflag & ICANON)
+    buf.c_lflag |= _SYSV_ICANON;
+  if (termios_p->c_lflag & ECHO)
+    buf.c_lflag |= _SYSV_ECHO;
+  if (termios_p->c_lflag & ECHOE)
+    buf.c_lflag |= _SYSV_ECHOE;
+  if (termios_p->c_lflag & ECHOK)
+    buf.c_lflag |= _SYSV_ECHOK;
+  if (termios_p->c_lflag & ECHONL)
+    buf.c_lflag |= _SYSV_ECHONL;
+  if (termios_p->c_lflag & NOFLSH)
+    buf.c_lflag |= _SYSV_NOFLSH;
+  if (termios_p->c_lflag & TOSTOP)
+    buf.c_lflag |= _SYSV_TOSTOP;
+  if (termios_p->c_lflag & ECHOCTL)
+    buf.c_lflag |= _SYSV_ECHOCTL;
+  if (termios_p->c_lflag & ECHOPRT)
+    buf.c_lflag |= _SYSV_ECHOPRT;
+  if (termios_p->c_lflag & ECHOKE)
+    buf.c_lflag |= _SYSV_ECHOKE;
+  if (termios_p->c_lflag & FLUSHO)
+    buf.c_lflag |= _SYSV_FLUSHO;
+  if (termios_p->c_lflag & PENDIN)
+    buf.c_lflag |= _SYSV_PENDIN;
+  if (termios_p->c_lflag & IEXTEN)
+    buf.c_lflag |= _SYSV_IEXTEN;
+
+  buf.c_cc[_SYSV_VINTR] = termios_p->c_cc[VINTR];
+  buf.c_cc[_SYSV_VQUIT] = termios_p->c_cc[VQUIT];
+  buf.c_cc[_SYSV_VERASE] = termios_p->c_cc[VERASE];
+  buf.c_cc[_SYSV_VKILL] = termios_p->c_cc[VKILL];
+  if (buf.c_lflag & _SYSV_ICANON)
+    {
+      buf.c_cc[_SYSV_VEOF] = termios_p->c_cc[VEOF];
+      buf.c_cc[_SYSV_VEOL] = termios_p->c_cc[VEOL];
+    }
+  else
+    {
+      buf.c_cc[_SYSV_VMIN] = termios_p->c_cc[VMIN];
+      buf.c_cc[_SYSV_VTIME] = termios_p->c_cc[VTIME];
+    }
+  buf.c_cc[_SYSV_VEOL2] = termios_p->c_cc[VEOL2];
+
+  if (__ioctl (fd, ioctl_function, &buf) < 0)
+    return -1;
+  return 0;
+}
diff --git a/sysdeps/unix/sysv/tcsetpgrp.c b/sysdeps/unix/sysv/tcsetpgrp.c
new file mode 100644
index 0000000000..da83f3bd6c
--- /dev/null
+++ b/sysdeps/unix/sysv/tcsetpgrp.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sys/types.h>
+#include <sysv_termio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+/* Set the foreground process group ID of FD set PGRP_ID.  */
+int
+DEFUN(tcsetpgrp, (fd, pgrp_id), int fd AND pid_t pgrp_id)
+{
+  return __ioctl (fd, _TIOCSPGRP, &pgrp_id);
+}
diff --git a/sysdeps/unix/sysv/times.S b/sysdeps/unix/sysv/times.S
new file mode 100644
index 0000000000..c2bb1685f5
--- /dev/null
+++ b/sysdeps/unix/sysv/times.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (times, 1)
+	ret
+
+weak_alias (__times, times)
diff --git a/sysdeps/unix/sysv/ulimit.S b/sysdeps/unix/sysv/ulimit.S
new file mode 100644
index 0000000000..1bc6dc910a
--- /dev/null
+++ b/sysdeps/unix/sysv/ulimit.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (ulimit, 2)
+	ret
diff --git a/sysdeps/unix/sysv/uname.S b/sysdeps/unix/sysv/uname.S
new file mode 100644
index 0000000000..ab4879fa40
--- /dev/null
+++ b/sysdeps/unix/sysv/uname.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (uname, 1)
+	ret
diff --git a/sysdeps/unix/sysv/utime.S b/sysdeps/unix/sysv/utime.S
new file mode 100644
index 0000000000..e24db03b5e
--- /dev/null
+++ b/sysdeps/unix/sysv/utime.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL (utime, 2)
+	ret
diff --git a/sysdeps/unix/sysv/utmp.h b/sysdeps/unix/sysv/utmp.h
new file mode 100644
index 0000000000..4c3d33e987
--- /dev/null
+++ b/sysdeps/unix/sysv/utmp.h
@@ -0,0 +1,23 @@
+#ifndef _UTMP_H
+
+#define _UTMP_H	1
+
+#include <time.h>
+
+struct utmp
+  {
+#define	ut_name	ut_user
+    char ut_user[8];
+    char ut_id[4];
+    char ut_line[12];
+    short ut_pid;
+    short ut_type;
+    struct exit_status
+      {
+	short e_termination;
+	short e_exit;
+      } ut_exit;
+    time_t ut_time;
+  };
+
+#endif /* utmp.h.  */
diff --git a/sysdeps/unix/sysv/utsnamelen.h b/sysdeps/unix/sysv/utsnamelen.h
new file mode 100644
index 0000000000..31473cf4ea
--- /dev/null
+++ b/sysdeps/unix/sysv/utsnamelen.h
@@ -0,0 +1 @@
+#define _UTSNAME_LENGTH 9