path: root/posix/Makefile

# Copyright (C) 1991-2023 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 Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 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
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.

#
#	Sub-makefile for POSIX portion of the library.
#
subdir	:= posix

include ../Makeconfig

headers	:= sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h	      \
	   glob.h regex.h wordexp.h fnmatch.h 				      \
	   getopt.h bits/getopt_core.h bits/getopt_ext.h bits/getopt_posix.h  \
	   bits/types.h bits/typesizes.h bits/pthreadtypes.h		      \
	   bits/pthreadtypes-arch.h bits/thread-shared-types.h		      \
	   bits/posix1_lim.h bits/posix2_lim.h bits/posix_opt.h		      \
	   bits/local_lim.h tar.h bits/utsname.h bits/confname.h	      \
	   bits/waitflags.h bits/waitstatus.h sys/unistd.h sched.h	      \
	   bits/sched.h bits/cpu-set.h re_comp.h wait.h bits/environments.h   \
	   cpio.h spawn.h bits/unistd.h bits/types/struct_sched_param.h	      \
	   bits/unistd_ext.h bits/types/idtype_t.h bits/mman_ext.h

routines :=								      \
	uname								      \
	times								      \
	wait waitpid wait3 wait4 waitid					      \
	alarm sleep pause nanosleep					      \
	fork _Fork vfork _exit register-atfork				      \
	execve fexecve execv execle execl execvp execlp execvpe		      \
	getpid getppid							      \
	getuid geteuid getgid getegid getgroups setuid setgid group_member    \
	getpgid setpgid getpgrp bsd-getpgrp setpgrp getsid setsid	      \
	getresuid getresgid setresuid setresgid				      \
	pathconf sysconf fpathconf					      \
	glob glob64 globfree globfree64 glob_pattern_p fnmatch regex	      \
	glob-lstat-compat glob64-lstat-compat				      \
	confstr								      \
	getopt getopt1 							      \
	sched_setp sched_getp sched_sets sched_gets sched_yield sched_primax  \
	sched_primin sched_rr_gi sched_getaffinity sched_setaffinity	      \
	getaddrinfo gai_strerror wordexp				      \
	pread pwrite pread64 pwrite64					      \
	spawn_faction_init spawn_faction_destroy spawn_faction_addclose	      \
	spawn_faction_addopen spawn_faction_adddup2 spawn_valid_fd	      \
	spawn_faction_addchdir spawn_faction_addfchdir			      \
	spawn_faction_addclosefrom					      \
	spawn_faction_addtcsetpgrp_np					      \
	spawnattr_init spawnattr_destroy				      \
	spawnattr_getdefault spawnattr_setdefault			      \
	spawnattr_getflags spawnattr_setflags				      \
	spawnattr_getpgroup spawnattr_setpgroup spawn spawnp spawni	      \
	spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
	spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
	posix_madvise							      \
	get_child_max sched_cpucount sched_cpualloc sched_cpufree \
	streams-compat \
	shm-directory                                                         \
	execveat \
	glob64-time64 \
	globfree64-time64

aux		:= init-posix environ
tests		:= test-errno tstgetopt testfnm runtests runptests \
		   tst-preadwrite tst-preadwrite64 test-vfork regexbug1 \
		   tst-mmap tst-mmap-offset tst-getaddrinfo tst-truncate \
		   tst-truncate64 tst-fork tst-fnmatch tst-regexloc tst-dir \
		   tst-chmod bug-regex1 bug-regex2 bug-regex3 bug-regex4 \
		   tst-gnuglob tst-gnuglob64 tst-regex bug-regex6 bug-regex7 \
		   bug-regex8 bug-regex9 bug-regex10 bug-regex11 bug-regex12 \
		   bug-regex13 bug-regex14 bug-regex15 bug-regex16 \
		   bug-regex17 bug-regex18 bug-regex19 \
		   bug-regex21 bug-regex22 bug-regex23 bug-regex24 \
		   bug-regex25 bug-regex26 bug-regex27 bug-regex28 \
		   bug-regex29 bug-regex30 bug-regex31 bug-regex32 \
		   tst-nice tst-nanosleep tst-regex2 \
		   transbug tst-rxspencer tst-pcre tst-boost \
		   bug-ga1 tst-vfork1 tst-vfork2 \
		   tst-waitid tst-wait4 tst-wait3 \
		   tst-getaddrinfo2 bug-glob2 bug-glob3 tst-sysconf \
		   tst-execvp1 tst-execvp2 tst-execlp1 tst-execlp2 \
		   tst-execv1 tst-execv2 tst-execl1 tst-execl2 \
		   tst-execve1 tst-execve2 tst-execle1 tst-execle2 \
		   tst-execvp3 tst-execvp4 \
		   tst-execvpe1 tst-execvpe2 tst-execvpe3 tst-execvpe4 \
		   tst-execvpe5 tst-execvpe6 \
		   tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset \
		   bug-getopt1 bug-getopt2 bug-getopt3 bug-getopt4 \
		   bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35 \
		   tst-pathconf tst-rxspencer-no-utf8 \
		   tst-fnmatch3 bug-regex36 \
		   tst-fnmatch4 tst-fnmatch5 tst-fnmatch6 tst-fnmatch7 \
		   tst-posix_spawn-fd tst-posix_spawn-setsid \
		   tst-posix_fadvise tst-posix_fadvise64 \
		   tst-sysconf-empty-chroot tst-glob_symlinks tst-fexecve \
		   tst-glob-tilde test-ssize-max tst-spawn4 bug-regex37 \
		   bug-regex38 tst-regcomp-truncated tst-spawn-chdir \
		   tst-wordexp-nocmd tst-execveat tst-spawn5 \
		   tst-sched_getaffinity tst-spawn6

# Test for the glob symbol version that was replaced in glibc 2.27.
ifeq ($(have-GLIBC_2.26)$(build-shared),yesyes)
tests += tst-glob_lstat_compat
endif

# Test for the posix_spawn, posix_spawnp symbol versions replaced in
# glibc 2.15.
ifeq ($(have-GLIBC_2.14)$(build-shared),yesyes)
tests += tst-spawn4-compat
endif

tests-internal	:= bug-regex5 bug-regex20 bug-regex33 \
		   tst-rfc3484 tst-rfc3484-2 tst-rfc3484-3
tests-container := bug-ga2 tst-vfork3
tests-time64	:= tst-wait4-time64 tst-wait3-time64 tst-gnuglob64-time64
xtests		:= tst-getaddrinfo4 tst-getaddrinfo5 tst-sched_rr_get_interval
xtests-time64	:= tst-sched_rr_get_interval-time64
ifeq (yes,$(build-shared))
test-srcs	:= globtest
tests           += wordexp-test tst-exec tst-spawn tst-spawn2 tst-spawn3
endif
ifeq (yesyes,$(build-shared)$(have-thread-library))
tests		+= tst-getopt-cancel tst-_Fork
endif
tests-static	= tst-exec-static tst-spawn-static
tests		+= $(tests-static)
others		:= getconf
install-bin	:= getconf
install-others-programs	:= $(inst_libexecdir)/getconf

before-compile	+= $(objpfx)posix-conf-vars-def.h

# So they get cleaned up.
generated += $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \
	     annexc annexc.out wordexp-tst.out bug-regex2-mem.out \
	     bug-regex2.mtrace bug-regex14-mem.out bug-regex14.mtrace \
	     bug-regex21-mem.out bug-regex21.mtrace \
	     bug-regex31-mem.out bug-regex31.mtrace \
	     tst-rxspencer-no-utf8-mem.out tst-rxspencer-no-utf8.mtrace \
	     tst-getconf.out \
	     tst-pcre-mem.out tst-pcre.mtrace tst-boost-mem.out \
	     tst-boost.mtrace bug-ga2.mtrace bug-ga2-mem.out \
	     bug-glob2.mtrace bug-glob2-mem.out tst-vfork3-mem.out \
	     tst-vfork3.mtrace getconf.speclist tst-fnmatch-mem.out \
	     tst-fnmatch.mtrace bug-regex36.mtrace \
	     testcases.h ptestcases.h

ifeq ($(run-built-tests),yes)
ifeq (yes,$(build-shared))
tests-special += $(objpfx)globtest.out $(objpfx)wordexp-tst.out
endif
endif

# Run a test on the header files we use.
# XXX Please note that for now we ignore the result of this test.
tests-special += $(objpfx)annexc.out
ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)bug-regex2-mem.out $(objpfx)bug-regex14-mem.out \
		 $(objpfx)bug-regex21-mem.out $(objpfx)bug-regex31-mem.out \
		 $(objpfx)tst-rxspencer-no-utf8-mem.out $(objpfx)tst-pcre-mem.out \
		 $(objpfx)tst-boost-mem.out $(objpfx)tst-getconf.out \
		 $(objpfx)bug-glob2-mem.out $(objpfx)tst-vfork3-mem.out \
		 $(objpfx)tst-fnmatch-mem.out $(objpfx)bug-regex36-mem.out \
		 $(objpfx)tst-glob-tilde-mem.out $(objpfx)bug-ga2-mem.out
endif

include ../Rules

ifeq ($(run-built-tests),yes)
# globtest and wordexp-test currently only works with shared libraries
ifeq (yes,$(build-shared))
$(objpfx)globtest.out: globtest.sh $(objpfx)globtest
	$(SHELL) $< $(common-objpfx) '$(test-via-rtld-prefix)' \
		'$(test-program-prefix)' '$(test-wrapper-env)'; \
	$(evaluate-test)
$(objpfx)wordexp-tst.out: wordexp-tst.sh $(objpfx)wordexp-test
	$(SHELL) $< $(common-objpfx) '$(test-program-prefix-before-env)' \
		 '$(run-program-env)' '$(test-program-prefix-after-env)'; \
	$(evaluate-test)
endif

LOCALES := \
	cs_CZ.ISO-8859-2 \
	cs_CZ.UTF-8 \
	C.UTF-8 \
	da_DK.ISO-8859-1 \
	de_DE.ISO-8859-1 \
	de_DE.UTF-8 \
	en_US.UTF-8 \
	es_US.ISO-8859-1 \
	es_US.UTF-8 \
	ja_JP.EUC-JP \
	tr_TR.UTF-8 \
	# LOCALES
include ../gen-locales.mk

$(objpfx)bug-regex1.out: $(gen-locales)
$(objpfx)bug-regex4.out: $(gen-locales)
$(objpfx)bug-regex5.out: $(gen-locales)
$(objpfx)bug-regex6.out: $(gen-locales)
$(objpfx)bug-regex17.out: $(gen-locales)
$(objpfx)bug-regex18.out: $(gen-locales)
$(objpfx)bug-regex19.out: $(gen-locales)
$(objpfx)bug-regex20.out: $(gen-locales)
$(objpfx)bug-regex22.out: $(gen-locales)
$(objpfx)bug-regex23.out: $(gen-locales)
$(objpfx)bug-regex25.out: $(gen-locales)
$(objpfx)bug-regex26.out: $(gen-locales)
$(objpfx)bug-regex30.out: $(gen-locales)
$(objpfx)bug-regex32.out: $(gen-locales)
$(objpfx)bug-regex33.out: $(gen-locales)
$(objpfx)bug-regex34.out: $(gen-locales)
$(objpfx)bug-regex35.out: $(gen-locales)
$(objpfx)tst-fnmatch.out: $(gen-locales)
$(objpfx)tst-fnmatch4.out: $(gen-locales)
$(objpfx)tst-fnmatch5.out: $(gen-locales)
$(objpfx)tst-fnmatch6.out: $(gen-locales)
$(objpfx)tst-regex.out: $(gen-locales)
$(objpfx)tst-regex2.out: $(gen-locales)
$(objpfx)tst-regexloc.out: $(gen-locales)
$(objpfx)tst-rxspencer.out: $(gen-locales)
$(objpfx)tst-rxspencer-no-utf8.out: $(gen-locales)
$(objpfx)tst-regcomp-truncated.out: $(gen-locales)
endif

# If we will use the generic uname implementation, we must figure out what
# it will say by examining the system, and write the results in config-name.h.
uname.c: $(objpfx)config-name.h
$(objpfx)config-name.h: $(..)scripts/config-uname.sh $(common-objpfx)config.make
	$(make-target-directory)
	$< '$(config-os)' '$(config-release)' \
	   '$(config-machine)-$(config-vendor)' > $@.new
	mv -f $@.new $@

CFLAGS-getaddrinfo.c += -DRESOLVER -fexceptions
CFLAGS-pause.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pread.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pread64.c += -fexceptions -fasynchronous-unwind-tables $(config-cflags-wno-ignored-attributes)
CFLAGS-pwrite.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pwrite64.c += -fexceptions -fasynchronous-unwind-tables $(config-cflags-wno-ignored-attributes)
CFLAGS-sleep.c += -fexceptions
CFLAGS-wait.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-waitid.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-waitpid.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-wait4.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-getopt.c += -fexceptions
CFLAGS-wordexp.c += -fexceptions
CFLAGS-wordexp.os = -fomit-frame-pointer
CFLAGS-sysconf.c += -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
CFLAGS-pathconf.c += -fexceptions
CFLAGS-fpathconf.c += -fexceptions
CFLAGS-spawn.c += -fexceptions
CFLAGS-spawn.os = -fomit-frame-pointer
CFLAGS-spawnp.c += -fexceptions
CFLAGS-spawnp.os = -fomit-frame-pointer
CFLAGS-spawni.c += -fexceptions
CFLAGS-spawni.os = -fomit-frame-pointer
CFLAGS-glob.c += $(uses-callbacks) -fexceptions
CFLAGS-glob64.c += $(uses-callbacks) -fexceptions
CFLAGS-getconf.c += -DGETCONF_DIR='"$(libexecdir)/getconf"'
CFLAGS-execve.os = -fomit-frame-pointer
CFLAGS-fexecve.os = -fomit-frame-pointer
CFLAGS-execv.os = -fomit-frame-pointer
CFLAGS-execle.os = -fomit-frame-pointer
CFLAGS-execl.os = -fomit-frame-pointer
CFLAGS-execvp.os = -fomit-frame-pointer
CFLAGS-execlp.os = -fomit-frame-pointer
CFLAGS-nanosleep.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-fork.c = $(libio-mtsafe) $(config-cflags-wno-ignored-attributes)

tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
		--none random --col --color --colour

tst-exec-ARGS = -- $(host-test-program-cmd)
tst-exec-static-ARGS = $(tst-exec-ARGS)
tst-execvpe5-ARGS = -- $(host-test-program-cmd)
tst-spawn-ARGS = -- $(host-test-program-cmd)
tst-spawn-static-ARGS = $(tst-spawn-ARGS)
tst-spawn5-ARGS = -- $(host-test-program-cmd)
tst-spawn6-ARGS = -- $(host-test-program-cmd)
tst-dir-ARGS = `pwd` `cd $(common-objdir)/$(subdir); pwd` `cd $(common-objdir); pwd` $(objpfx)tst-dir
tst-chmod-ARGS = $(objdir)
tst-vfork3-ARGS = --test-dir=$(objpfx)

tst-rxspencer-ARGS = --utf8 rxspencer/tests
tst-rxspencer-no-utf8-ARGS = rxspencer/tests
tst-pcre-ARGS = PCRE.tests
tst-boost-ARGS = BOOST.tests
bug-glob1-ARGS = "$(objpfx)"
tst-execvp3-ARGS = --test-dir=$(objpfx)
CFLAGS-tst-spawn3.c += -DOBJPFX=\"$(objpfx)\"

$(objpfx)testcases.h: TESTS TESTS2C.sed
	LC_ALL=C sed -f TESTS2C.sed < $< > $@T
	mv $@T $@
$(objpfx)runtests.o: $(objpfx)testcases.h

$(objpfx)ptestcases.h: PTESTS PTESTS2C.sed
	LC_ALL=C sed -f PTESTS2C.sed < $< > $@T
	mv $@T $@
$(objpfx)runptests.o: $(objpfx)ptestcases.h

$(objpfx)tst-getopt-cancel: $(shared-thread-library)
$(objpfx)tst-_Fork: $(shared-thread-library)

test-xfail-annexc = yes
$(objpfx)annexc.out: $(objpfx)annexc
	$(dir $<)$(notdir $<) '$(CC)' \
	  '$(patsubst %,-I../%,$(sorted-subdirs)) -I../include $(+sysdep-includes) $(sysincludes) -I..' > $@; \
	$(evaluate-test)

annexc-CFLAGS = -O
$(objpfx)annexc: annexc.c
	$(native-compile)

tst-fnmatch-ENV += MALLOC_TRACE=$(objpfx)tst-fnmatch.mtrace \
		   LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)tst-fnmatch-mem.out: $(objpfx)tst-fnmatch.out
	$(common-objpfx)malloc/mtrace $(objpfx)tst-fnmatch.mtrace > $@; \
	$(evaluate-test)

bug-regex2-ENV = MALLOC_TRACE=$(objpfx)bug-regex2.mtrace \
		 LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)bug-regex2-mem.out: $(objpfx)bug-regex2.out
	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex2.mtrace > $@; \
	$(evaluate-test)

bug-regex14-ENV = MALLOC_TRACE=$(objpfx)bug-regex14.mtrace \
		  LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)bug-regex14-mem.out: $(objpfx)bug-regex14.out
	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex14.mtrace > $@; \
	$(evaluate-test)

bug-regex21-ENV = MALLOC_TRACE=$(objpfx)bug-regex21.mtrace \
		  LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)bug-regex21-mem.out: $(objpfx)bug-regex21.out
	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex21.mtrace > $@; \
	$(evaluate-test)

bug-regex31-ENV = MALLOC_TRACE=$(objpfx)bug-regex31.mtrace \
		  LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)bug-regex31-mem.out: $(objpfx)bug-regex31.out
	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex31.mtrace > $@; \
	$(evaluate-test)

bug-regex36-ENV = MALLOC_TRACE=$(objpfx)bug-regex36.mtrace \
		  LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)bug-regex36-mem.out: $(objpfx)bug-regex36.out
	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex36.mtrace > $@; \
	$(evaluate-test)

tst-vfork3-ENV = MALLOC_TRACE=$(objpfx)tst-vfork3.mtrace \
		 LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)tst-vfork3-mem.out: $(objpfx)tst-vfork3.out
	{ test -r $(objpfx)tst-vfork3.mtrace \
	|| ( echo "tst-vfork3.mtrace does not exist"; exit 77; ) \
	&& $(common-objpfx)malloc/mtrace $(objpfx)tst-vfork3.mtrace; } > $@; \
	$(evaluate-test)

# tst-rxspencer.mtrace is not generated, only
# tst-rxspencer-no-utf8.mtrace, since otherwise the file has almost
# 100M and takes very long time to process.
tst-rxspencer-no-utf8-ENV += \
  MALLOC_TRACE=$(objpfx)tst-rxspencer-no-utf8.mtrace \
  LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
$(objpfx)tst-rxspencer-no-utf8-mem.out: $(objpfx)tst-rxspencer-no-utf8.out
	$(common-objpfx)malloc/mtrace $(objpfx)tst-rxspencer-no-utf8.mtrace \
				      > $@; \
	$(evaluate-test)

tst-pcre-ENV = MALLOC_TRACE=$(objpfx)tst-pcre.mtrace \
	       LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
$(objpfx)tst-pcre-mem.out: $(objpfx)tst-pcre.out
	$(common-objpfx)malloc/mtrace $(objpfx)tst-pcre.mtrace > $@; \
	$(evaluate-test)

tst-boost-ENV = MALLOC_TRACE=$(objpfx)tst-boost.mtrace \
		LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
$(objpfx)tst-boost-mem.out: $(objpfx)tst-boost.out
	$(common-objpfx)malloc/mtrace $(objpfx)tst-boost.mtrace > $@; \
	$(evaluate-test)

$(objpfx)tst-getconf.out: tst-getconf.sh $(objpfx)getconf
	$(SHELL) $< $(common-objpfx) '$(built-program-cmd)'; \
	$(evaluate-test)

$(objpfx)bug-ga2-mem.out: $(objpfx)bug-ga2.out
	{ test -r $(objpfx)bug-ga2.mtrace \
	|| ( echo "bug-ga2.mtrace does not exist"; exit 77; ) \
	&& $(common-objpfx)malloc/mtrace $(objpfx)bug-ga2.mtrace; } > $@; \
	$(evaluate-test)

bug-ga2-ENV = MALLOC_TRACE=$(objpfx)bug-ga2.mtrace \
	      LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

bug-glob2-ENV = MALLOC_TRACE=$(objpfx)bug-glob2.mtrace \
		LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)bug-glob2-mem.out: $(objpfx)bug-glob2.out
	$(common-objpfx)malloc/mtrace $(objpfx)bug-glob2.mtrace > $@; \
	$(evaluate-test)

tst-glob-tilde-ENV = MALLOC_TRACE=$(objpfx)tst-glob-tilde.mtrace \
		     LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so

$(objpfx)tst-glob-tilde-mem.out: $(objpfx)tst-glob-tilde.out
	$(common-objpfx)malloc/mtrace $(objpfx)tst-glob-tilde.mtrace > $@; \
	$(evaluate-test)

$(inst_libexecdir)/getconf: $(inst_bindir)/getconf \
			    $(objpfx)getconf.speclist FORCE
	$(addprefix $(..)./scripts/mkinstalldirs ,\
		    $(filter-out $(wildcard $@),$@))
	while read spec; do \
	  ln -f $< $@/$$spec.new || $(INSTALL_PROGRAM) $< $@/$$spec.new; \
	  mv -f $@/$$spec.new $@/$$spec; \
	done < $(objpfx)getconf.speclist

$(objpfx)getconf.speclist: getconf-speclist.c posix-envs.def
	$(compile.c) -E -o - \
	    | sed -n -e '/@@@PRESENT_/s/@@@PRESENT_//p' > $@.new
	mv -f $@.new $@

# This file is only actually needed at install time.  But forcing it to
# be built both makes it available for eyeball inspection and avoids the
# surprise of things that look like compilation being done by 'make install'.
others: $(objpfx)getconf.speclist

$(objpfx)posix-conf-vars-def.h: $(..)scripts/gen-posix-conf-vars.awk \
				posix-conf-vars.list Makefile
	$(make-target-directory)
	$(AWK) -f $(filter-out Makefile, $^) > $@.tmp
	mv -f $@.tmp $@