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# Copyright (C) 1991, 1992, 1993, 1994, 1995 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.
#
# Rules for making a subdirectory in the GNU C library.
# Each subdirectory Makefile defines some variables and includes this.
#
ifneq (,)
This makefile requires GNU Make.
endif
all: # Don't let the default goal come from Makeconfig.
include ../Makeconfig
ifndef subdir
Each subdirectory makefile must define the `subdir' variable.
endif
# This is benign and useless in GNU make before 3.63.
export subdir := $(subdir)
# This is the default target; it makes the library and auxiliary programs.
.PHONY: all
all: objs lib others
ifneq "$(findstring env,$(origin headers))" ""
headers :=
endif
ifneq "$(findstring env,$(origin generated))" ""
generated :=
endif
ifeq "$(strip $(headers))" ""
ifneq "$(wildcard $(subdir).h)" ""
override headers := $(subdir).h
endif
endif
include ../Makerules
.PHONY: subdir_lib
subdir_lib: objs lib-noranlib
# Some subdirs need to install a dummy library.
# They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
dep-dummy-lib = $(objpfx)dummy.o
define make-dummy-lib
$(AR) cr$(verbose) $@ $<
endef
$(objpfx)dummy.o:
@rm -f $(@:.o=.c)
echo 'void __dummy__ () { }' > $(@:.o=.c)
$(CC) -c $(@:.o=.c) -o $@
# This makes all the auxilliary and test programs.
.PHONY: others tests
others: $(addprefix $(objpfx),$(others))
ifeq ($(cross-compiling),yes)
tests: $(addprefix $(objpfx),$(tests))
else
tests: $(tests:%=$(objpfx)%.out)
endif
ifneq "$(strip $(others) $(tests))" ""
$(addprefix $(objpfx),$(others) $(tests)): %: %.o $(libc.a)
$(+link)
endif
ifneq "$(strip $(tests))" ""
# These are the implicit rules for making test outputs
# from the test programs and whatever input files are present.
$(objpfx)%.out: $(objpfx)% %.args %.input
$(dir $<)$(notdir $<) `cat $(word 2,$^)` < $(word 3,$^) > $@
$(objpfx)%.out: $(objpfx)% %.args
$(dir $<)$(notdir $<) `cat $(word 2,$^)` > $@
$(objpfx)%.out: $(objpfx)% %.input
$(dir $<)$(notdir $<) < $(word 2,$^) > $@
$(objpfx)%.out: $(objpfx)%
$(dir $<)$(notdir $<) > $@
endif # tests
.PHONY: distclean realclean subdir_distclean subdir_realclean \
subdir_clean subdir_mostlyclean
subdir_mostlyclean: mostlyclean
subdir_clean: clean
subdir_distclean: distclean
subdir_realclean: realclean
realclean: distclean
distclean: clean
.PHONY: subdir_echo-headers
subdir_echo-headers: echo-headers
.PHONY: subdir_echo-distinfo
subdir_echo-distinfo:
@echo $(addprefix +header+,$(headers)) \
$(addprefix +nodist+,$(generated) $(dont_distribute))
# We want to install everything except the library itself, but update all
# our portions of the library because the parent make will install it later
# (likewise the stubs file).
.PHONY: subdir_install
subdir_install: install-no-libc.a lib-noranlib stubs
.PHONY: subdir_TAGS subdir_dist
subdir_TAGS: TAGS
subdir_dist: dist
# Convenient target to update all the generated source files.
.PHONY: generated
generated: $(addprefix $(objpfx),$(generated))
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