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# Copyright (C) 1991, 92, 93, 94, 95, 96 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.
#
# Master Makefile for the GNU C library
#
ifneq (,)
This makefile requires GNU Make.
endif
# This is the default target; it makes everything except the tests.
.PHONY: all
all: lib others
define autoconf-it
@-rm -f $@.new
autoconf $(ACFLAGS) $< > $@.new
chmod a-w,a+x $@.new
mv -f $@.new $@
test ! -d CVS || cvs commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
endef
configure: configure.in aclocal.m4; $(autoconf-it)
%/configure: %/configure.in aclocal.m4; $(autoconf-it)
include Makeconfig
ifndef avoid-generated
-include $(objpfx)sysd-dirs
define \n
endef
sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
endif
# These are the subdirectories containing the library source.
subdirs = csu assert ctype db locale intl catgets math setjmp signal stdlib \
stdio-common $(stdio) malloc string wcsmbs time dirent grp pwd\
posix io termios resource misc login socket sysvipc gmon gnulib \
wctype manual shadow crypt $(sysdep-subdirs) nss elf po $(add-ons)
export subdirs := $(subdirs) # Benign, useless in GNU make before 3.63.
# The mach and hurd subdirectories have many generated header files which
# much of the rest of the library depends on, so it is best to build them
# first (and mach before hurd, at that). The before-compile additions in
# sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
# not to exist when making in other directories, but it will be slower that
# way with more somewhat expensive `make' invocations.
subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
$(filter-out mach hurd,$(subdirs))
# All initialization source files.
+subdir_inits := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
# All subdirectories containing initialization source files.
+init_subdirs := $(patsubst %/,%,$(dir $(+subdir_inits)))
# These are the targets that are made by making them in each subdirectory.
+subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
subdir_clean subdir_distclean subdir_realclean \
tests subdir_lint.out \
subdir_distinfo \
subdir_echo-headers subdir_echo-distinfo \
subdir_install \
$(addprefix install-, no-libc.a bin lib data headers others)
headers := errno.h sys/errno.h errnos.h limits.h values.h \
features.h gnu-versions.h libc-lock.h
aux = sysdep $(libc-init) version
before-compile = $(objpfx)version-info.h
echo-headers: subdir_echo-headers
# What to install.
install-others = $(includedir)/stubs.h $(includedir)/gnu/lib-names.h
ifeq (yes,$(gnu-ld))
libc-init = set-init
else
libc-init = munch-init
$(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
awk -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
mv -f $@-t $@
generated := $(generated) munch-init.c
endif
include Makerules
# Install from subdirectories too.
install: subdir_install
# Build subdirectory lib objects.
lib-noranlib: subdir_lib
ifeq (yes,$(build-shared))
# Build the shared object from the PIC object library.
lib: $(common-objpfx)libc.so
endif
all-Subdirs-files = $(wildcard $(addsuffix /Subdirs, $(config-sysdirs)))
$(objpfx)sysd-dirs: $(+sysdir_pfx)config.make $(all-Subdirs-files)
(echo define sysdep-subdirs; \
sed 's/#.*$$//' $(all-Subdirs-files) /dev/null; \
echo endef) > $@-tmp
mv -f $@-tmp $@
all-Banner-files = $(wildcard $(addsuffix /Banner, $(subdirs)))
$(objpfx)version-info.h: $(+sysdir_pfx)config.make $(all-Banner-files)
(case $(config-os) in \
linux*) version=`(echo -e "#include <linux/version.h>\nUTS_RELEASE"\
| $(CC) -E -P - | \
sed -e 's/"\([^"]*\)".*/\1/p' -e d) 2>/dev/null`;\
if [ -z "$$version" ]; then \
if [ -r /proc/version ]; then \
version=`sed 's/.*version \([^ ]*\) .*/>>\1<</' \
< /proc/version`; \
else \
version=`uname -r`; \
fi; \
fi; \
echo -n "\"Compiled on a Linux $$version system "; \
echo "on `date +%Y/%m/%d`.\\n\"" ;; \
*) ;; \
esac; \
files="$(all-Banner-files)"; \
if test -n "$$files"; then \
echo "\"Available extensions:"; \
sed -e '/^#/d' -e 's/^[[:space:]]*/ /' $$files; \
echo "\""; \
fi) > $@T
mv -f $@T $@
generated += version-info.h
version.c-objects := $(addprefix $(objpfx)version,$(object-suffixes))
$(version.c-objects): $(objpfx)version-info.h
# Makerules creates a file `stub-$(subdir)' for each subdirectory, which
# contains `#define __stub_FUNCTION' for each function which is a stub.
# Here we paste all of these together into <stubs.h>.
subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)stub-$(dir))
# Since stubs.h is never needed when building the library, we simplify the
# hairy installation process by producing it in place only as the last part
# of the top-level `make install'. It depends on subdir_install, which
# iterates over all the subdirs; subdir_install in each subdir depends on
# the subdir's stubs file. Having more direct dependencies would result in
# extra iterations over the list for subdirs and many recursive makes.
$(includedir)/stubs.h: subdir_install
@rm -f $(objpfx)stubs.h
(echo '/* This file is automatically generated.';\
echo ' It defines a symbol `__stub_FUNCTION'\'' for each function';\
echo ' in the C library which is a stub, meaning it will fail';\
echo ' every time called, usually setting errno to ENOSYS. */';\
sort $(subdir-stubs)) > $(objpfx)stubs.h
if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
then echo 'stubs.h unchanged'; \
else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
rm -f $(objpfx)stubs.h
# Like stubs.h the gnu/lib-names.h header is not used while building the
# libc itself. So we generate it while installing.
$(includedir)/gnu/lib-names.h: $(common-objpfx)soversions.mk
@rm -f $(objpfx)lib-names.h
(echo '/* This file is automatically generated.';\
echo ' It defines macros to allow user program to find the shared';\
echo ' library files which come as part of GNU libc. */';\
echo '#ifndef __GNU_LIB_NAMES_H'; \
echo '#define __GNU_LIB_NAMES_H 1'; \
echo; \
(libs='$(all-sonames)';\
for l in $$libs; do \
upname=`echo $$l | sed 's/[.]so.*//' | tr [:lower:]- [:upper:]_`; \
echo "#define $${upname}_SO $$l"; \
done;) | sort; \
echo; \
echo '#endif /* gnu/lib-names.h */';) > $(objpfx)lib-names.h
if test -r $@ && cmp -s $(objpfx)lib-names.h $@; \
then echo 'gnu/lib-names.h unchanged'; \
else $(INSTALL_DATA) $(objpfx)lib-names.h $@; fi
rm -f $(objpfx)lib-names.h
# This makes the Info or DVI file of the documentation from the Texinfo source.
.PHONY: info dvi
info dvi:
$(MAKE) -C manual $@
# This makes all the subdirectory targets.
# For each target, make it depend on DIR/target for each subdirectory DIR.
$(+subdir_targets): %: $(addsuffix /%,$(subdirs))
# Compute a list of all those targets.
all-subdirs-targets := $(foreach dir,$(subdirs),\
$(addprefix $(dir)/,$(+subdir_targets)))
# The action for each of those is to cd into the directory and make the
# target there.
$(all-subdirs-targets):
$(MAKE) -C $(@D) $(@F)
.PHONY: $(+subdir_targets) $(all-subdirs-targets)
# Targets to clean things up to various degrees.
.PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
# Subroutines of all cleaning targets.
parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
-rm -f $(foreach o,$(object-suffixes),\
$(common-objpfx)$(patsubst %,$(libtype$o),c)) \
$(addprefix $(objpfx),$(install-lib))
parent-clean: parent-mostlyclean common-clean
-rm -f $(addprefix $(common-objpfx),$(common-generated))
-rm -f $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules)
clean: parent-clean
# This is done this way rather than having `subdir_clean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
@$(MAKE) subdir_clean no_deps=t
mostlyclean: parent-mostlyclean
@$(MAKE) subdir_mostlyclean no_deps=t
# The realclean target is just like distclean for the parent, but we want
# the subdirs to know the difference in case they care.
realclean distclean: parent-clean
# This is done this way rather than having `subdir_distclean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes
# Subroutine of distclean and realclean.
distclean-1: subdir_$(distclean-1)
-rm -f $(config-generated)
-rm -f $(addprefix $(objpfx),config.status config.cache config.log)
-rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
ifdef objdir
-rm -f $(objpfx)Makefile
endif
-rm -f $(sysdep-$(distclean-1))
.PHONY: echo_subdirs
echo_subdirs:;@echo '$(subdirs)'
.PHONY: echo-distinfo parent_echo-distinfo
echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
parent_echo-distinfo:
@echo $(addprefix +header+,$(headers)) \
$(addprefix +nodist+,$(generated))
# Make the distribution tarfile.
distribute := README INSTALL FAQ NOTES NEWS PROJECTS \
COPYING.LIB COPYING ChangeLog ChangeLog.[0-9] \
Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
extra-lib.mk o-iterator.mk \
ansidecl.h mkinstalldirs move-if-change install-sh \
configure configure.in aclocal.m4 config.sub config.guess\
config.h.in config.make.in config-name.in Makefile.in \
autolock.sh rellns-sh munch-tmpl.c munch.awk interp.c \
sysdep.h set-hooks.h libc-symbols.h version.h shlib-versions \
rpm/Makefile rpm/template rpm/rpmrc nsswitch.h netgroup.h
distribute := $(strip $(distribute))
generated := $(generated) stubs.h version-info.h
README: README.template version.c ; # Make-dist should update README.
define format-me
@rm -f $@
makeinfo --no-validate --no-warn --no-headers $< -o $@
-chmod a-w $@
endef
INSTALL: manual/maint.texi; $(format-me)
NOTES: manual/creature.texi; $(format-me)
rpm/%: subdir_distinfo
$(MAKE) -C $(@D) subdirs='$(subdirs)' $(@F)
|