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# Copyright (C) 1993, 1994, 1995, 1996 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 in-Makerules
subdirs := $(filter-out sunrpc,$(subdirs)) # XXX skip broken dirs
# Look for header files in hurd/ under the top-level library source directory.
includes += -I$(..)hurd
# Do not use any assembly code from sysdeps/unix (and subdirectories).
# This bypasses all the system call stubs and uses any existing posix or
# generic C files instead.
inhibit-sysdep-asm += unix*
inhibit-unix-syscalls = yes
# Don't try to generate anything from the installed Unix system and its
# libraries. That is only of use when building for a Unix system, so as to
# be compatible with some existing binaries for that system.
inhibit-glue = yes
ifeq (,$(filter mach hurd,$(subdir)))
# Subdirectories other than hurd/ might use the generated Hurd headers.
# So make sure we get a chance to run in hurd/ to make them before all else.
# (But we don't want to do this in mach/, because hurd/ needs some things
# there, and we know mach/ doesn't need anything from hurd/.)
hurd-objpfx = $(common-objpfx)hurd/
# These are all the generated headers that <hurd.h> includes.
before-compile += $(patsubst %,$(hurd-objpfx)hurd/%.h,io fs process)
$(patsubst %,$(hurd-objpfx)hurd/%.%,io fs process):
$(MAKE) -C $(..)hurd generated no_deps=t
endif
# Generate errnos.h from the section of the manual that lists all the errno
# codes.
errno.texinfo = $(..)manual/errno.texi
hurd = $(..)sysdeps/mach/hurd
define mach-errno-h
($(foreach h,mach/message.h \
mach/kern_return.h \
mach/mig_errors.h \
device/device_types.h,\
echo '#include <$h>';\
))
endef
# We use the compiler to generate a list of absolute file names for
# the headers we want to search for Mach error codes, listed above (and
# incidentally, all other headers those include).
-include $(common-objpfx)errnos.d
$(common-objpfx)errnos.d: $(mach-errnos-deps)
$(mach-errno-h) | \
$(CC) $(CPPFLAGS) -M -x c - | \
sed $(sed-remove-objpfx) -e 's,- *:,mach-errnos-deps :=,' \
-e 's,\.\./,$(..),g' > $@t
mv -f $@t $@
$(hurd)/errnos.h: $(common-objpfx)stamp-errnos ;
$(common-objpfx)stamp-errnos: $(hurd)/errnos.awk $(errno.texinfo) \
$(mach-errnos-deps)
gawk -f $^ > $(hurd)/errnos.h-tmp
# Make it unwritable so noone will edit it by mistake.
-chmod a-w $(hurd)/errnos.h-tmp
./$(..)move-if-change $(hurd)/errnos.h-tmp $(hurd)/errnos.h
test ! -d CVS || \
(cd $(hurd); cvs commit -m'Regenerated from $^' errnos.h)
touch $@
generated += errnos.d stamp-errnos
# We install the real libc.a as libcrt.a and as libc.a we install a linker
# script which does -( -lcrt -lmachuser -lhurduser -).
libc-name = crt
ifeq (,$(subdir))
install-others += $(libdir)/libc.a
$(libdir)/libc.a: $(hurd)/libc-ldscript; $(do-install)
endif
# For the shared library, we don't need to do the linker script machination.
# Instead, we specify the required libraries when building the shared object.
rpcuserlibs := $(common-objpfx)mach/libmachuser.so \
$(common-objpfx)hurd/libhurduser.so
$(common-objpfx)libc.so: $(rpcuserlibs)
rpath-link += $(common-objpfx)mach:$(common-objpfx)hurd
# The RPC stubs from these libraries are needed in building the dynamic
# linker, too. It must be self-contained, so we link the needed PIC
# objects directly into the shared object.
ifeq (elf,$(subdir))
$(objpfx)librtld.so: $(rpcuserlibs:.so=_pic.a)
endif
endif # in-Makerules
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