# Copyright (C) 1991, 1992, 1993 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.

#
#	Propagated rules for making the GNU C library
#
ifneq (,)
This makefile requires GNU Make.
endif

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: lib others

ifneq	"$(findstring env,$(origin headers))" ""
headers :=
endif

ifeq "$(strip $(headers))" ""
ifneq "$(wildcard $(subdir).h)" ""
override headers := $(subdir).h
endif
endif

include ../Makerules

.PHONY: subdir_lib
subdir_lib: lib-noranlib

# This makes all the auxilliary and test programs.

.PHONY: others tests
others: $(addprefix $(objpfx),$(others))
tests: $(tests:%=$(objpfx)%.out)

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

export others := $(others)
export tests := $(tests)

# This removes everything that can be regenerated
# except for the object files and the object-file library members.
.PHONY: mostlyclean
mostlyclean:
	-rm -f $(addprefix $(objpfx),$(tests) $(others) \
				     $(addsuffix .o,$(tests) $(others)))
	-rm -f core TAGS $(objpfx)depend-$(subdir)

# This removes absolutely everything that can be regenerated.
.PHONY: subdir_clean clean realclean
subdir_clean realclean: clean
clean: mostlyclean
	-rm -f $(objects) $(addprefix $(objpfx),$(extra-objs)) \
	       $(+depfiles) $(generated)

.PHONY: subdir_echo-headers
subdir_echo-headers: echo-headers

.PHONY: subdir_echo-distinfo
subdir_echo-distinfo:
	@echo $(addprefix +header+,$(headers)) \
	      $(addprefix +nodist+,$(generated))

.PHONY: subdir_install
subdir_install: install

.PHONY: subdir_TAGS
subdir_TAGS: TAGS

# Make the distribution tarfile for the parent makefile.
export distribute := $(distribute)
export generated := $(generated)
.PHONY: subdir_dist dist
subdir_dist: dist
dist: ../Make-dist
	$(MAKE) -f $< $(Make-dist-args)