* Makefile (subdir-target-args): New variable.

	($(all-subdirs-targets)): Use it in place of -C option.
	* Rules: Use $(..) instead of ../ if it's already defined.
	* Makeconfig (subdir-srcdirs): New variable.
	* csu/Makefile (all-Banner-files): Use it.

	* configure.in (--enable-add-ons): Set to "yes" by default.
	Handle absolute add-on directory names when looking for configure
	fragments.  Also look for sysdeps/*/preconfigure fragments in add-ons.
	Require add-on configure to set $libc_add_on_canonical, use
	that in $add_ons_sfx.  Substitute add_on_subdirs with computed list
	of subdir names each add-on configure set in libc_add_on_subdirs.
	* configure: Regenerated.
	* Makefile (%/preconfigure: %/preconfigure.in): New pattern rule.
	* config.make.in (add-on-subdirs): New substituted variable.
	* Makeconfig (all-subdirs): Include $(add-on-subdirs).
	Remove $(add-ons), $(sysdep-subdirs).
	Don't filter out $(sysdep-inhibit-subdirs).
	($(common-objpfx)sysd-dirs): Target removed.  Don't include it.
	($(common-objpfx)sysd-sorted): Rewritten to feed Depend and Subdirs
	files together to gen-sorted.awk, and $(subdirs) via -v.
	(subdirs): Remove magic reordering for mach and hurd.
	* scripts/gen-sorted.awk: Use subdirs from command line.
	Process Subdirs and Depend files directly.
	Let Subdirs files use "first dir" and "inhibit dir".
	Always move elf to the end of the list.
	* hurd/Depend: New file.
	* sysdeps/mach/Subdirs: Use "first mach".

	* Makefile (dist-separate): Remove linuxthreads.
	(dist-separate-linuxthreads): Variable removed.
	(glibc-%.tar rule): Use $(sysdeps-add-ons).

	* Makerules ($(common-objpfx)Versions.v.i): Use $(subdirs),
	not $(all-subdirs).
	(sysdep-makefiles): Use $(sysdirs).
	(sysdirs): Remove export.
	($(+sysdir_pfx)sysd-rules): Handle absolute directory names in
	$(config-sysdirs).
	(+sysdir_pfx): Variable removed.
	(sysd-rules): Use $(common-objpfx) in place of it.
	(sysdirs): Variable moved to ...
	* Makeconfig (sysdirs): ... here.
	Handle absolute directory names in $(config-sysdirs).
	(full_config_sysdirs): Variable removed.
	* csu/Makefile: Use $(sysdirs) in vpath directive.
	* math/Makefile (ulps-file): Use $(sysdirs).
	* sysdeps/gnu/Makefile (errlist-c): Likewise.
	($(objpfx)errlist-compat.c): Likewise.
	* Makeconfig (all-Subdirs-files): Likewise.
	($(common-objpfx)config.status): Likewise.

	* configure.in (sysnames): Handle absolute add-on directory names.
	(sysdeps_add_ons): New variable, AC_SUBST it.
	Compute which add-ons contributed sysdeps directories.
	* configure: Regenerated.
	* config.make.in (sysdeps-add-ons): New substituted variable.
	* Makerules (+sysdep_dirs, +sysdep-includes): Variables moved ...
	* Makeconfig: ... to here.
	(+sysdep_dirs): Append $(sysdeps-add-ons) here.
	(+includes): Remove $(objpfx) include, already in $(+sysdep_dirs).
	Remove $(includes).
	(sysdep-makeconfigs): Use $(+sysdep_dirs).
	($(common-objpfx)shlib-versions.v.i): Likewise.

	* Makeconfig: Remove hair to set Makeconfig-add-on.

	* sysdeps/unix/Makefile (sysdirs): Remove export.
	(asm_CPP): Variable removed.
	($(common-objpfx)sysd-syscalls): Pass them directly for the script.

	* sysdeps/posix/Makefile: New file.
	* Makerules (L_tmpnam, TMP_MAX, L_ctermid, L_cuserid): Set non-posix
	values here with ?=.

	* stdlib/gen-mpn-copy: File removed.
	* stdlib/Makefile (distribute): Remove it.
	* configure.in: Don't grok --with-gmp.
	* configure: Regenerated.

	* configure.in (libc_cv_idn): Don't check it; libidn/configure does it.
	* configure: Regenerated.

	* bare: Directory removed, saved in ports repository.

21 files changed, 173 insertions, 51 deletions

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 8881c8d487..b4c320890f 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,33 @@
+2006-02-27  Roland McGrath  <roland@redhat.com>
+
+	* sysdeps/pthread/Subdirs: List nptl here too.
+	* configure (libc_add_on_canonical): New variable.
+
+	* sysdeps/unix/sysv/linux/sh/sh4/lowlevellock.h: Use #include_next.
+
+	* sysdeps/unix/sysv/linux/sleep.c: Use #include_next after #include of
+	self to get main source tree's file.
+	* sysdeps/unix/sysv/linux/alpha/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/vfork.S: Likewise.
+	* sysdeps/unix/sysv/linux/ia64/clone2.S: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/sh/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
+
+	* Makefile: Use $(sysdirs) in vpath directive.
+
+	* sysdeps/pthread/Makefile (CFLAGS-libc-start.c): Variable removed.
+	(CPPFLAGS-timer_routines.c): Likewise.
+
+	* Makeconfig (includes): Variable removed.
+
 2006-02-26  Roland McGrath  <roland@redhat.com>
 
 	* sysdeps/generic/pt-raise.c: Moved to ...
diff --git a/nptl/Makeconfig b/nptl/Makeconfig
index 681d76f61f..54e2f65b01 100644
--- a/nptl/Makeconfig
+++ b/nptl/Makeconfig
@@ -1,4 +1,4 @@
-# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+# Copyright (C) 2002,2003,2005,2006 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 # Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -28,7 +28,3 @@ static-thread-library = $(common-objpfx)nptl/libpthread.a
 bounded-thread-library = $(common-objpfx)nptl/libpthread_b.a
 
 rpath-dirs += nptl
-
-ifneq ($(subdir),nptl)
-includes += -I$(..)nptl
-endif
diff --git a/nptl/Makefile b/nptl/Makefile
index e484c6ab61..fff33eaf54 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -528,7 +528,7 @@ $(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a
 endif
 
 ifeq ($(build-shared),yes)
-vpath pt-initfini.c $(full_config_sysdirs)
+vpath pt-initfini.c $(sysdirs)
 
 $(objpfx)pt-initfini.s: pt-initfini.c
 	$(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \
diff --git a/nptl/configure b/nptl/configure
index 3ad635f48d..1ce3caec6e 100644
--- a/nptl/configure
+++ b/nptl/configure
@@ -1,6 +1,5 @@
-# This is only to keep the GNU C library configure mechanism happy.
 # This is a shell script fragment sourced by the main configure script.
-# We have nothing we need to add here.
-#
-# Perhaps some day we will need a real configuration script for different
-# kernel versions or so.
+# We're obliged to give here the canonical name that will be used to
+# as a subdirectory to search for in other add-ons' sysdeps trees.
+
+libc_add_on_canonical=nptl
diff --git a/nptl/sysdeps/pthread/Makefile b/nptl/sysdeps/pthread/Makefile
index 207e10fad2..72550d74a7 100644
--- a/nptl/sysdeps/pthread/Makefile
+++ b/nptl/sysdeps/pthread/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+# Copyright (C) 2002,2003,2004,2006 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 # Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -18,7 +18,6 @@
 # 02111-1307 USA.
 
 ifeq ($(subdir),csu)
-CFLAGS-libc-start.c += -I../nptl
 routines += unwind-resume
 shared-only-routines += unwind-resume
 CFLAGS-unwind-resume.c += -fexceptions -fasynchronous-unwind-tables
@@ -31,7 +30,6 @@ endif
 ifeq ($(subdir),rt)
 librt-sysdep_routines += timer_routines librt-cancellation rt-unwind-resume
 librt-shared-only-routines += rt-unwind-resume
-CPPFLAGS-timer_routines.c = -I../nptl
 CFLAGS-librt-cancellation.c += -fexceptions -fasynchronous-unwind-tables
 CFLAGS-rt-unwind-resume.c += -fexceptions -fasynchronous-unwind-tables
 
diff --git a/nptl/sysdeps/pthread/Subdirs b/nptl/sysdeps/pthread/Subdirs
index 4d1f4d876b..36266c1e69 100644
--- a/nptl/sysdeps/pthread/Subdirs
+++ b/nptl/sysdeps/pthread/Subdirs
@@ -1 +1,2 @@
+nptl
 nptl_db
diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/clone.S b/nptl/sysdeps/unix/sysv/linux/alpha/clone.S
index eea1cbeed1..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/alpha/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/alpha/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/alpha/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/clone.S b/nptl/sysdeps/unix/sysv/linux/i386/clone.S
index 95c17f18e4..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/i386/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/vfork.S b/nptl/sysdeps/unix/sysv/linux/i386/vfork.S
index 52336102c7..37f0842051 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/vfork.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/vfork.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999,2002,2004,2006 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
@@ -16,10 +16,17 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#include <tcb-offsets.h>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <vfork.S>
+#else
+
+# include <tcb-offsets.h>
 
 /* Save the PID value.  */
-#define SAVE_PID \
+# define SAVE_PID \
 	movl	%gs:PID, %edx; 						      \
 	movl	%edx, %eax;						      \
 	negl	%eax;							      \
@@ -28,11 +35,11 @@
 1:	movl	%eax, %gs:PID
 
 /* Restore the old PID value in the parent.  */
-#define RESTORE_PID \
+# define RESTORE_PID \
 	testl	%eax, %eax;						      \
 	je	1f;							      \
 	movl	%edx, %gs:PID;						      \
 1:
 
-
-#include <sysdeps/unix/sysv/linux/i386/vfork.S>
+# include_next <vfork.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/clone2.S b/nptl/sysdeps/unix/sysv/linux/ia64/clone2.S
index 8664056f27..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/clone2.S
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/clone2.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/ia64/clone2.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S
index e19579e842..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S
@@ -1,3 +1,9 @@
-#define RESET_PID
-#include <tcb-offsets.h>
-#include <sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S
index f87adf4737..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S
@@ -1,3 +1,9 @@
-#define RESET_PID
-#include <tcb-offsets.h>
-#include <sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/clone.S b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
index 682f94dae8..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/s390/s390-32/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/clone.S b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/clone.S
index 87ee2e1846..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/s390/s390-64/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/clone.S b/nptl/sysdeps/unix/sysv/linux/sh/clone.S
index 62a11972d8..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/sh/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/sh/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/sh4/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sh/sh4/lowlevellock.h
index 8cdcac5560..90be7bd8d0 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/sh4/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/sh/sh4/lowlevellock.h
@@ -1,4 +1,4 @@
 /*  4 instruction cycles not accessing cache and TLB are needed after
     trapa instruction to avoid an SH-4 silicon bug.  */
 #define NEED_SYSCALL_INST_PAD
-#include <sysdeps/unix/sysv/linux/sh/lowlevellock.h>
+#include_next <lowlevellock.h>
diff --git a/nptl/sysdeps/unix/sysv/linux/sleep.c b/nptl/sysdeps/unix/sysv/linux/sleep.c
index c56b49b39f..2dce3210ca 100644
--- a/nptl/sysdeps/unix/sysv/linux/sleep.c
+++ b/nptl/sysdeps/unix/sysv/linux/sleep.c
@@ -1,2 +1,10 @@
-#include <nptl/pthreadP.h>
-#include <sysdeps/unix/sysv/linux/sleep.c>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <sleep.c>
+#else
+/* This defines the CANCELLATION_P macro, which sleep.c checks for.  */
+# include <pthreadP.h>
+# include_next <sleep.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index da6197c00d..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/sparc/sparc32/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index 410f32017a..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/sparc/sparc64/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S b/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S
index dfa6adb3e2..675a997e97 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S
@@ -1,2 +1,9 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/x86_64/clone.S>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <clone.S>
+#else
+# define RESET_PID
+# include_next <clone.S>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/vfork.S b/nptl/sysdeps/unix/sysv/linux/x86_64/vfork.S
index f68d40439e..9a9912ca85 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/vfork.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/vfork.S
@@ -16,9 +16,16 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#include <tcb-offsets.h>
+/* We want an #include_next, but we are the main source file.
+   So, #include ourselves and in that incarnation we can use #include_next.  */
+#ifndef INCLUDED_SELF
+# define INCLUDED_SELF
+# include <vfork.S>
+#else
 
-#define SAVE_PID \
+# include <tcb-offsets.h>
+
+# define SAVE_PID \
 	movl	%fs:PID, %esi;						      \
 	movl	$0x80000000, %ecx;					      \
 	movl	%esi, %edx;						      \
@@ -26,10 +33,11 @@
 	cmove	%ecx, %edx;						      \
 	movl	%edx, %fs:PID
 
-#define RESTORE_PID \
+# define RESTORE_PID \
 	testq	%rax, %rax;						      \
 	je	1f;							      \
 	movl	%esi, %fs:PID;						      \
 1:
 
-#include <sysdeps/unix/sysv/linux/x86_64/vfork.S>
+# include_next <vfork.S>
+#endif