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238 lines
8.3 KiB
Makefile
238 lines
8.3 KiB
Makefile
# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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# You should have received a copy of the GNU Library General Public
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# License along with the GNU C Library; see the file COPYING.LIB. If
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# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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# Cambridge, MA 02139, USA.
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#
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# Master Makefile for the GNU C library
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#
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ifneq (,)
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This makefile requires GNU Make.
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endif
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# This is the default target; it makes everything except the tests.
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.PHONY: all
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all: lib others
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define autoconf-it
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autoconf $(ACFLAGS) $< > $@.new
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mv -f $@.new $@
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test -d CVS && cvs commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
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endef
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configure: configure.in; $(autoconf-it)
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%/configure: %/configure.in; $(autoconf-it)
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include Makeconfig
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ifndef avoid-generated
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include $(objpfx)sysd-dirs
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define \n
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endef
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sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
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endif
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# These are the subdirectories containing the library source.
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subdirs := csu assert ctype locale math setjmp signal stdio stdlib \
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malloc string time dirent grp pwd posix io termios resource \
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socket misc gnulib $(wildcard crypt) manual \
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$(sysdep-subdirs) elf
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export subdirs := $(subdirs) # Benign, useless in GNU make before 3.63.
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# The mach and hurd subdirectories have many generated header files which
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# the much of rest of the library depends on, so it is best to build them
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# first (and mach before hurd, at that). The before-compile additions in
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# sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
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# not to exist when making in other directories, but it will be slower that
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# way with more somewhat expensive `make' invocations.
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subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
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$(filter-out mach hurd,$(subdirs))
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# All initialization source files.
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+subdir_inits := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
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# All subdirectories containing initialization source files.
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+init_subdirs := $(patsubst %/,%,$(dir $(+subdir_inits)))
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# These are the targets that are made by making them in each subdirectory.
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+subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
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subdir_clean subdir_distclean subdir_realclean \
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tests subdir_lint.out \
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subdir_echo-headers subdir_echo-distinfo \
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subdir_install $(addprefix install-, \
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no-libc.a bin lib \
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data headers others)
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headers := features.h errno.h sys/errno.h errnos.h limits.h
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aux = sysdep $(libc-init) version
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echo-headers: subdir_echo-headers
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# What to install.
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install-others = $(includedir)/stubs.h
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ifeq (yes,$(gnu-ld))
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libc-init = set-init
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else
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libc-init = munch-init
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$(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
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awk -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
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mv -f $@-t $@
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generated := $(generated) munch-init.c
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endif
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include Makerules
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# Install from subdirectories too.
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install: subdir_install
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# Build subdirectory lib objects.
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lib-noranlib: subdir_lib
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ifeq (yes,$(build-shared))
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# Build the shared object from the PIC object library.
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lib: $(common-objpfx)libc.so
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endif
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$(objpfx)sysd-dirs: $(+sysdir_pfx)config.make
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(echo define sysdep-subdirs; \
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for dir in $(sysdirs); do \
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if [ -r $(sysdep_dir)/$$dir/Subdirs ]; then \
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sed 's/#.*$$//' $(sysdep_dir)/$$dir/Subdirs; \
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else true; \
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fi; \
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done; \
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echo endef) > $@-tmp
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mv -f $@-tmp $@
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# Makerules creates a file `stub-$(subdir)' for each subdirectory, which
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# contains `#define __stub_FUNCTION' for each function which is a stub.
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# Here we paste all of these together into <stubs.h>.
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subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)stub-$(dir))
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# Since stubs.h is never needed when building the library, we simplify the
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# hairy installation process by producing it in place only as the last part
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# of the top-level `make install'. It depends on subdir_install, which
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# iterates over all the subdirs; subdir_install in each subdir depends on
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# the subdir's stubs file. Having more direct dependencies would result in
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# extra iterations over the list for subdirs and many recursive makes.
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$(includedir)/stubs.h: subdir_install
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@rm -f $(objpfx)stubs.h
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(echo '/* This file is automatically generated.';\
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echo ' It defines a symbol `__stub_FUNCTION'\'' for each function';\
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echo ' in the C library which is a stub, meaning it will fail';\
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echo ' every time called, usually setting errno to ENOSYS. */';\
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sort $(subdir-stubs)) > $(objpfx)stubs.h
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$(INSTALL_DATA) $(objpfx)stubs.h $@
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rm -f $(objpfx)stubs.h
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# This makes the Info or DVI file of the documentation from the Texinfo source.
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.PHONY: info dvi
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info dvi:
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$(MAKE) -C manual $@
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# This makes all the subdirectory targets.
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# For each target, make it depend on DIR/target for each subdirectory DIR.
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$(+subdir_targets): %: $(addsuffix /%,$(subdirs))
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# Compute a list of all those targets.
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all-subdirs-targets := $(foreach dir,$(subdirs),\
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$(addprefix $(dir)/,$(+subdir_targets)))
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# The action for each of those is to cd into the directory and make the
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# target there.
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$(all-subdirs-targets):
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$(MAKE) -C $(@D) $(@F)
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.PHONY: $(+subdir_targets) $(all-subdirs-targets)
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# Targets to clean things up to various degrees.
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.PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
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# Subroutines of all cleaning targets.
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parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
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-rm -f $(libc.a) $(addprefix $(objpfx),$(install-lib))
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parent-clean: parent-mostlyclean common-clean
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-rm -f $(addprefix $(common-objpfx),$(common-generated))
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-rm -f $(addprefix $(+sysdir_pfx),sysd-Makefile sysd-dirs sysd-rules)
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clean: parent-clean
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# This is done this way rather than having `subdir_clean' be a
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# dependency of this target so that libc.a will be removed before the
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# subdirectories are dealt with and so they won't try to remove object
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# files from it when it's going to be removed anyway.
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@$(MAKE) subdir_clean no_deps=t
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mostlyclean: parent-mostlyclean
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@$(MAKE) subdir_mostlyclean no_deps=t
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# The realclean target is just like distclean for the parent, but we want
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# the subdirs to know the difference in case they care.
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realclean distclean: parent-clean
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# This is done this way rather than having `subdir_distclean' be a
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# dependency of this target so that libc.a will be removed before the
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# subdirectories are dealt with and so they won't try to remove object
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# files from it when it's going to be removed anyway.
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@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes
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# Subroutine of distclean and realclean.
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distclean-1: subdir_$(distclean-1)
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-rm -f $(config-generated)
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-rm -f $(addprefix $(objpfx),config.status cache.cache)
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-rm -f $(addprefix $(objpfx),config.make config-name.h)
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ifdef objdir
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-rm -f $(objpfx)Makefile
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endif
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-rm -f $(sysdep-$(distclean-1))
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.PHONY: echo_subdirs
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echo_subdirs:;@echo '$(subdirs)'
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.PHONY: echo-distinfo parent_echo-distinfo
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echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
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parent_echo-distinfo:
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@echo $(addprefix +header+,$(headers)) \
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$(addprefix +nodist+,$(generated))
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# Make the distribution tarfile.
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distribute := README INSTALL NOTES COPYING.LIB COPYING ChangeLog NEWS \
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Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
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extra-lib.mk o-iterator.mk \
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ansidecl.h mkinstalldirs move-if-change install-sh \
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configure configure.in aclocal.m4 config.sub config.guess\
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config.make.in config-name.in Makefile.in \
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munch-tmpl.c munch.awk sysdep.h set-hooks.h libc-symbols.h
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distribute := $(strip $(distribute))
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generated := $(generated) stubs.h
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README: README.template version.c ; # Make-dist should update README.
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define format-me
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@rm -f $@
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makeinfo --no-validate --no-warn --no-headers $< -o $@
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-chmod a-w $@
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endef
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INSTALL: manual/maint.texi; $(format-me)
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NOTES: manual/creature.texi; $(format-me)
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