# Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 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., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# Master Makefile for the GNU C library
#
ifneq (,)
This makefile requires GNU Make.
endif
include Makeconfig
# This is the default target; it makes everything except the tests.
.PHONY: all
all: lib others
ifeq ($(with-cvs),yes)
define autoconf-it
@-rm -f $@.new
autoconf $(ACFLAGS) $< > $@.new
chmod a-w,a+x $@.new
mv -f $@.new $@
test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
endef
else
define autoconf-it
@-rm -f $@.new
autoconf $(ACFLAGS) $< > $@.new
chmod a-w,a+x $@.new
mv -f $@.new $@
endef
endif
configure: configure.in aclocal.m4; $(autoconf-it)
%/configure: %/configure.in aclocal.m4; $(autoconf-it)
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 db2 locale intl catgets math setjmp signal stdlib \
stdio-common $(stdio) malloc string wcsmbs time dirent grp pwd \
posix io termios resource misc socket sysvipc gmon gnulib iconv \
iconvdata wctype manual shadow md5-crypt po argp $(add-ons) nss \
localedata timezone rt $(sysdep-subdirs) $(binfmt-subdir)
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 bits/errno.h limits.h values.h \
features.h gnu-versions.h bits/libc-lock.h bits/xopen_lim.h \
gnu/libc-version.h
aux = sysdep $(libc-init) version
before-compile += $(objpfx)version-info.h
echo-headers: subdir_echo-headers
# The headers are in the include directory.
subdir-dirs = include
vpath %.h $(subdir-dirs)
# What to install.
install-others = $(inst_includedir)/gnu/stubs.h
install-bin = glibcbug
ifeq (yes,$(build-shared))
install-others += $(inst_includedir)/gnu/lib-names.h
endif
ifeq (yes,$(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
# Make sure that the dynamic linker is installed before libc.
$(inst_slibdir)/libc-$(version).so: elf/ldso_install
.PHONY: elf/ldso_install
elf/ldso_install:
$(MAKE) -C $(@D) $(@F)
# Create links for shared libraries using the `ldconfig' program is possible.
# Ignore the error if we cannot update /etc/ld.so.cache.
ifeq (no,$(cross-compiling))
ifeq (yes,$(build-shared))
install:
-test ! -x $(common-objpfx)elf/ldconfig || \
$(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
ifneq (no,$(PERL))
ifeq (/usr,$(prefix))
ifeq (,$(install_root))
CC="$(CC)" $(PERL) test-installation.pl $(common-objpfx)
endif
endif
endif
endif
endif
# Build subdirectory lib objects.
lib-noranlib: subdir_lib
ifeq (yes,$(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 $@
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 <gnu/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.
$(inst_includedir)/gnu/stubs.h: subdir_install
$(make-target-directory)
@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 $(objpfx)stubs.h
ifeq (yes,$(build-shared))
$(inst_includedir)/gnu/lib-names.h: $(common-objpfx)gnu/lib-names.h $(+force)
$(make-target-directory)
if test -r $@ && cmp -s $< $@; \
then echo 'gnu/lib-names.h unchanged'; \
else $(INSTALL_DATA) $< $@; fi
endif
# The `glibcbug' script contains the version number and it shall be rebuild
# whenever this changes or the `glibcbug.in' file.
$(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
cd $(<D) && CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)
# This makes the Info or DVI file of the documentation from the Texinfo source.
.PHONY: info dvi
info dvi:
$(MAKE) $(PARALLELMFLAGS) -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) $(PARALLELMFLAGS) -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-for-libc),\
$(common-objpfx)$(patsubst %,$(libtype$o),c)) \
$(addprefix $(objpfx),$(install-lib))
parent-clean: parent-mostlyclean common-clean
postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
$(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
$(objpfx)soversions.mk
clean: parent-clean
# This is done this way rather than having `subdir_clean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
@$(MAKE) subdir_clean no_deps=t
mostlyclean: parent-mostlyclean
@$(MAKE) subdir_mostlyclean no_deps=t
-rm -f $(postclean)
# The realclean target is just like distclean for the parent, but we want
# the subdirs to know the difference in case they care.
realclean distclean: parent-clean
# This is done this way rather than having `subdir_distclean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
sysdep-subdirs="$(sysdep-subdirs)"
-rm -f $(postclean)
# Subroutine of distclean and realclean.
distclean-1: subdir_$(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)
-rm -f $(addprefix $(objpfx),glibcbug)
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 README.libm INSTALL FAQ NOTES NEWS PROJECTS BUGS \
COPYING.LIB COPYING ChangeLog ChangeLog.[0-9] \
Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
extra-lib.mk o-iterator.mk \
libc.map 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 glibcbug.in abi-tags \
stub-tag.h test-installation.pl test-skeleton.c \
include/des.h
distribute := $(strip $(distribute))
generated := $(generated) stubs.h version-info.h
README: README.template version.h ; # Make-dist should update README.
define format-me
@rm -f $@
makeinfo --no-validate --no-warn --no-headers $< -o $@
-chmod a-w $@
endef
INSTALL: manual/install.texi; $(format-me)
NOTES: manual/creature.texi; $(format-me)
manual/dir-add.texi manual/dir-add.info: FORCE
$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
FAQ: gen-FAQ.pl FAQ.in
$(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
ifeq ($(with-cvs),yes)
test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: $(PERL) $^' $@
endif
FORCE:
rpm/%: subdir_distinfo
$(MAKE) $(PARALLELMFLAGS) -C $(@D) subdirs='$(subdirs)' $(@F)
iconvdata/%:
$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
# This is a special goal for people making binary distributions. Normally
# everybody uses the DES based crypt library but for the distribution we
# need the only-MD5 based one as well.
md5-crypt/libmd5crypt:
$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)