Fix float range reduction problems (bug 14283).

[thirdparty/glibc.git] / Rules

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ifndef	subdir
Each subdirectory makefile must define the `subdir' variable.
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export subdir := $(subdir)
\f
# This is the default target; it makes the library and auxiliary programs.
.PHONY: all
all: objs lib others

ifeq ($(build-programs),yes)
others: $(addprefix $(objpfx),$(extra-objs) \
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else
others: $(addprefix $(objpfx),$(extra-objs) \
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ifneq	"$(findstring env,$(origin headers))" ""
headers :=
endif

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

ifneq	"$(findstring env,$(origin common-generated))" ""
common-generated :=
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# See below.  This must be set before Makerules processes it.
before-compile += $(common-objpfx)bits/stdio_lim.h

include $(..)Makerules

.PHONY: subdir_lib
subdir_lib: 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 = $(common-objpfx)dummy.o
define make-dummy-lib
$(AR) cr$(verbose) $@ $<
endef

$(common-objpfx)dummy.c:
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	(echo 'extern void __dummy__ (void);'; \
	 echo 'void __dummy__ (void) { }') > $@
common-generated += dummy.o dummy.c
\f
# This makes all the auxiliary and test programs.

.PHONY: others tests
ifeq ($(build-programs),yes)
others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
else
others: $(addprefix $(objpfx),$(extra-objs))
endif
ifeq ($(cross-compiling),yes)
tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
xtests: tests
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ifeq ($(build-bounded),yes)
tests-bp.out = $(tests:%=$(objpfx)%-bp.out)
xtests-bp.out = $(xtests:%=$(objpfx)%-bp.out)
endif
tests: $(tests:%=$(objpfx)%.out) $(tests-bp.out)
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ifeq ($(build-programs),yes)
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ifeq (yesyes,$(have-fpie)$(build-shared))
binaries-pie = $(others-pie) $(tests-pie) $(xtests-pie)
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binaries-pie =
endif
else
binaries-all = $(tests) $(xtests) $(test-srcs)
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binaries-shared = $(filter-out $(binaries-pie) $(binaries-static), \
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ifneq "$(strip $(binaries-shared))" ""
$(addprefix $(objpfx),$(binaries-shared)): %: %.o \
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endif

ifneq "$(strip $(binaries-pie))" ""
$(addprefix $(objpfx),$(binaries-pie)): %: %.o \
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ifneq "$(strip $(binaries-static))" ""
$(addprefix $(objpfx),$(binaries-static)): %: %.o \
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endif

ifeq ($(build-bounded),yes)
binaries-bounded = $(addsuffix -bp,$(tests) $(xtests) $(test-srcs))
$(addprefix $(objpfx),$(binaries-bounded)): %-bp: %.ob \
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endif

ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
# These are the implicit rules for making test outputs
# from the test programs and whatever input files are present.

make-test-out = GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
		$($*-ENV) $(built-program-cmd) $($*-ARGS)
$(objpfx)%-bp.out: %.input $(objpfx)%-bp
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$(objpfx)%.out: %.input $(objpfx)%
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$(objpfx)%.out: /dev/null $(objpfx)%	# Make it 2nd arg for canned sequence.
	$(make-test-out) > $@

endif	# tests
\f
.PHONY: distclean realclean subdir_distclean subdir_realclean \
	subdir_clean subdir_mostlyclean subdir_testclean
subdir_mostlyclean: mostlyclean
subdir_clean: clean
subdir_distclean: distclean
subdir_realclean: realclean
subdir_testclean: do-tests-clean
realclean: distclean
distclean: clean

# 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_objs subdir_stubs
subdir_objs: objs
subdir_stubs: stubs

# Target required by the Hurd to ensure that all the MiG-generated
# headers are in place before building a subdirectory.
.PHONY: before-compile
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$(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
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