posix/Makefile

   1 # Copyright (C) 1991-2021 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, see
  16 # <https://www.gnu.org/licenses/>.
  17
  18 #
  19 #       Sub-makefile for POSIX portion of the library.
  20 #
  21 subdir  := posix
  22
  23 include ../Makeconfig
  24
  25 headers := sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h          \
  26            glob.h regex.h wordexp.h fnmatch.h                                 \
  27            getopt.h bits/getopt_core.h bits/getopt_ext.h bits/getopt_posix.h  \
  28            bits/types.h bits/typesizes.h bits/pthreadtypes.h                  \
  29            bits/pthreadtypes-arch.h bits/thread-shared-types.h                \
  30            bits/posix1_lim.h bits/posix2_lim.h bits/posix_opt.h               \
  31            bits/local_lim.h tar.h bits/utsname.h bits/confname.h              \
  32            bits/waitflags.h bits/waitstatus.h sys/unistd.h sched.h            \
  33            bits/sched.h bits/cpu-set.h re_comp.h wait.h bits/environments.h   \
  34            cpio.h spawn.h bits/unistd.h bits/types/struct_sched_param.h       \
  35            bits/unistd_ext.h
  36
  37 routines :=                                                                   \
  38         uname                                                                 \
  39         times                                                                 \
  40         wait waitpid wait3 wait4 waitid                                       \
  41         alarm sleep pause nanosleep                                           \
  42         fork vfork _exit register-atfork                                      \
  43         execve fexecve execv execle execl execvp execlp execvpe               \
  44         getpid getppid                                                        \
  45         getuid geteuid getgid getegid getgroups setuid setgid group_member    \
  46         getpgid setpgid getpgrp bsd-getpgrp setpgrp getsid setsid             \
  47         getresuid getresgid setresuid setresgid                               \
  48         pathconf sysconf fpathconf                                            \
  49         glob glob64 globfree globfree64 glob_pattern_p fnmatch regex          \
  50         glob-lstat-compat glob64-lstat-compat                                 \
  51         confstr                                                               \
  52         getopt getopt1                                                        \
  53         sched_setp sched_getp sched_sets sched_gets sched_yield sched_primax  \
  54         sched_primin sched_rr_gi sched_getaffinity sched_setaffinity          \
  55         getaddrinfo gai_strerror wordexp                                      \
  56         pread pwrite pread64 pwrite64                                         \
  57         spawn_faction_init spawn_faction_destroy spawn_faction_addclose       \
  58         spawn_faction_addopen spawn_faction_adddup2 spawn_valid_fd            \
  59         spawn_faction_addchdir spawn_faction_addfchdir                        \
  60         spawnattr_init spawnattr_destroy                                      \
  61         spawnattr_getdefault spawnattr_setdefault                             \
  62         spawnattr_getflags spawnattr_setflags                                 \
  63         spawnattr_getpgroup spawnattr_setpgroup spawn spawnp spawni           \
  64         spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
  65         spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
  66         posix_madvise                                                         \
  67         get_child_max sched_cpucount sched_cpualloc sched_cpufree \
  68         streams-compat \
  69         shm-directory
  70
  71 aux             := init-posix environ
  72 tests           := test-errno tstgetopt testfnm runtests runptests \
  73                    tst-preadwrite tst-preadwrite64 test-vfork regexbug1 \
  74                    tst-mmap tst-mmap-offset tst-getaddrinfo tst-truncate \
  75                    tst-truncate64 tst-fork tst-fnmatch tst-regexloc tst-dir \
  76                    tst-chmod bug-regex1 bug-regex2 bug-regex3 bug-regex4 \
  77                    tst-gnuglob tst-gnuglob64 tst-regex bug-regex6 bug-regex7 \
  78                    bug-regex8 bug-regex9 bug-regex10 bug-regex11 bug-regex12 \
  79                    bug-regex13 bug-regex14 bug-regex15 bug-regex16 \
  80                    bug-regex17 bug-regex18 bug-regex19 \
  81                    bug-regex21 bug-regex22 bug-regex23 bug-regex24 \
  82                    bug-regex25 bug-regex26 bug-regex27 bug-regex28 \
  83                    bug-regex29 bug-regex30 bug-regex31 bug-regex32 \
  84                    tst-nice tst-nanosleep tst-regex2 \
  85                    transbug tst-rxspencer tst-pcre tst-boost \
  86                    bug-ga1 tst-vfork1 tst-vfork2 tst-vfork3 \
  87                    tst-waitid tst-wait4 \
  88                    tst-getaddrinfo2 bug-glob2 bug-glob3 tst-sysconf \
  89                    tst-execvp1 tst-execvp2 tst-execlp1 tst-execlp2 \
  90                    tst-execv1 tst-execv2 tst-execl1 tst-execl2 \
  91                    tst-execve1 tst-execve2 tst-execle1 tst-execle2 \
  92                    tst-execvp3 tst-execvp4 \
  93                    tst-execvpe1 tst-execvpe2 tst-execvpe3 tst-execvpe4 \
  94                    tst-execvpe5 tst-execvpe6 \
  95                    tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset \
  96                    bug-getopt1 bug-getopt2 bug-getopt3 bug-getopt4 \
  97                    bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35 \
  98                    tst-pathconf tst-rxspencer-no-utf8 \
  99                    tst-fnmatch3 bug-regex36 \
 100                    tst-fnmatch4 tst-fnmatch5 tst-fnmatch6 \
 101                    tst-posix_spawn-fd tst-posix_spawn-setsid \
 102                    tst-posix_fadvise tst-posix_fadvise64 \
 103                    tst-sysconf-empty-chroot tst-glob_symlinks tst-fexecve \
 104                    tst-glob-tilde test-ssize-max tst-spawn4 bug-regex37 \
 105                    bug-regex38 tst-regcomp-truncated tst-spawn-chdir \
 106                    tst-wordexp-nocmd
 107
 108 # Test for the glob symbol version that was replaced in glibc 2.27.
 109 ifeq ($(have-GLIBC_2.26)$(build-shared),yesyes)
 110 tests += tst-glob_lstat_compat
 111 endif
 112
 113 # Test for the posix_spawn, posix_spawnp symbol versions replaced in
 114 # glibc 2.15.
 115 ifeq ($(have-GLIBC_2.14)$(build-shared),yesyes)
 116 tests += tst-spawn4-compat
 117 endif
 118
 119 tests-internal  := bug-regex5 bug-regex20 bug-regex33 \
 120                    tst-rfc3484 tst-rfc3484-2 tst-rfc3484-3
 121 tests-container := bug-ga2
 122 xtests          := tst-getaddrinfo4 tst-getaddrinfo5 tst-sched_rr_get_interval
 123 ifeq (yes,$(build-shared))
 124 test-srcs       := globtest
 125 tests           += wordexp-test tst-exec tst-spawn tst-spawn2 tst-spawn3
 126 endif
 127 ifeq (yesyes,$(build-shared)$(have-thread-library))
 128 tests           += tst-getopt-cancel
 129 endif
 130 tests-static    = tst-exec-static tst-spawn-static
 131 tests           += $(tests-static)
 132 others          := getconf
 133 install-bin     := getconf
 134 install-others-programs := $(inst_libexecdir)/getconf
 135
 136 before-compile  += $(objpfx)posix-conf-vars-def.h
 137
 138 # So they get cleaned up.
 139 generated += $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \
 140              annexc annexc.out wordexp-tst.out bug-regex2-mem.out \
 141              bug-regex2.mtrace bug-regex14-mem.out bug-regex14.mtrace \
 142              bug-regex21-mem.out bug-regex21.mtrace \
 143              bug-regex31-mem.out bug-regex31.mtrace \
 144              tst-rxspencer-no-utf8-mem.out tst-rxspencer-no-utf8.mtrace \
 145              tst-getconf.out \
 146              tst-pcre-mem.out tst-pcre.mtrace tst-boost-mem.out \
 147              tst-boost.mtrace bug-ga2.mtrace bug-ga2-mem.out \
 148              bug-glob2.mtrace bug-glob2-mem.out tst-vfork3-mem.out \
 149              tst-vfork3.mtrace getconf.speclist tst-fnmatch-mem.out \
 150              tst-fnmatch.mtrace bug-regex36.mtrace \
 151              testcases.h ptestcases.h
 152
 153 ifeq ($(run-built-tests),yes)
 154 ifeq (yes,$(build-shared))
 155 tests-special += $(objpfx)globtest.out $(objpfx)wordexp-tst.out
 156 endif
 157 endif
 158
 159 # Run a test on the header files we use.
 160 # XXX Please note that for now we ignore the result of this test.
 161 tests-special += $(objpfx)annexc.out
 162 ifeq ($(run-built-tests),yes)
 163 tests-special += $(objpfx)bug-regex2-mem.out $(objpfx)bug-regex14-mem.out \
 164                  $(objpfx)bug-regex21-mem.out $(objpfx)bug-regex31-mem.out \
 165                  $(objpfx)tst-rxspencer-no-utf8-mem.out $(objpfx)tst-pcre-mem.out \
 166                  $(objpfx)tst-boost-mem.out $(objpfx)tst-getconf.out \
 167                  $(objpfx)bug-glob2-mem.out $(objpfx)tst-vfork3-mem.out \
 168                  $(objpfx)tst-fnmatch-mem.out $(objpfx)bug-regex36-mem.out \
 169                  $(objpfx)tst-glob-tilde-mem.out $(objpfx)bug-ga2-mem.out
 170 endif
 171
 172 include ../Rules
 173
 174 ifeq ($(run-built-tests),yes)
 175 # globtest and wordexp-test currently only works with shared libraries
 176 ifeq (yes,$(build-shared))
 177 $(objpfx)globtest.out: globtest.sh $(objpfx)globtest
 178         $(SHELL) $< $(common-objpfx) '$(test-via-rtld-prefix)' \
 179                 '$(test-program-prefix)' '$(test-wrapper-env)'; \
 180         $(evaluate-test)
 181 $(objpfx)wordexp-tst.out: wordexp-tst.sh $(objpfx)wordexp-test
 182         $(SHELL) $< $(common-objpfx) '$(test-program-prefix-before-env)' \
 183                  '$(run-program-env)' '$(test-program-prefix-after-env)'; \
 184         $(evaluate-test)
 185 endif
 186
 187 LOCALES := cs_CZ.UTF-8 da_DK.ISO-8859-1 de_DE.ISO-8859-1 de_DE.UTF-8 \
 188            en_US.UTF-8 es_US.ISO-8859-1 es_US.UTF-8 ja_JP.EUC-JP tr_TR.UTF-8 \
 189            cs_CZ.ISO-8859-2
 190 include ../gen-locales.mk
 191
 192 $(objpfx)bug-regex1.out: $(gen-locales)
 193 $(objpfx)bug-regex4.out: $(gen-locales)
 194 $(objpfx)bug-regex5.out: $(gen-locales)
 195 $(objpfx)bug-regex6.out: $(gen-locales)
 196 $(objpfx)bug-regex17.out: $(gen-locales)
 197 $(objpfx)bug-regex18.out: $(gen-locales)
 198 $(objpfx)bug-regex19.out: $(gen-locales)
 199 $(objpfx)bug-regex20.out: $(gen-locales)
 200 $(objpfx)bug-regex22.out: $(gen-locales)
 201 $(objpfx)bug-regex23.out: $(gen-locales)
 202 $(objpfx)bug-regex25.out: $(gen-locales)
 203 $(objpfx)bug-regex26.out: $(gen-locales)
 204 $(objpfx)bug-regex30.out: $(gen-locales)
 205 $(objpfx)bug-regex32.out: $(gen-locales)
 206 $(objpfx)bug-regex33.out: $(gen-locales)
 207 $(objpfx)bug-regex34.out: $(gen-locales)
 208 $(objpfx)bug-regex35.out: $(gen-locales)
 209 $(objpfx)tst-fnmatch.out: $(gen-locales)
 210 $(objpfx)tst-fnmatch4.out: $(gen-locales)
 211 $(objpfx)tst-fnmatch5.out: $(gen-locales)
 212 $(objpfx)tst-fnmatch6.out: $(gen-locales)
 213 $(objpfx)tst-regex.out: $(gen-locales)
 214 $(objpfx)tst-regex2.out: $(gen-locales)
 215 $(objpfx)tst-regexloc.out: $(gen-locales)
 216 $(objpfx)tst-rxspencer.out: $(gen-locales)
 217 $(objpfx)tst-rxspencer-no-utf8.out: $(gen-locales)
 218 $(objpfx)tst-regcomp-truncated.out: $(gen-locales)
 219 endif
 220
 221 # If we will use the generic uname implementation, we must figure out what
 222 # it will say by examining the system, and write the results in config-name.h.
 223 uname.c: $(objpfx)config-name.h
 224 $(objpfx)config-name.h: $(..)scripts/config-uname.sh $(common-objpfx)config.make
 225         $(make-target-directory)
 226         $< '$(config-os)' '$(config-release)' \
 227            '$(config-machine)-$(config-vendor)' > $@.new
 228         mv -f $@.new $@
 229
 230 CFLAGS-getaddrinfo.c += -DRESOLVER -fexceptions
 231 CFLAGS-pause.c += -fexceptions -fasynchronous-unwind-tables
 232 CFLAGS-pread.c += -fexceptions -fasynchronous-unwind-tables
 233 CFLAGS-pread64.c += -fexceptions -fasynchronous-unwind-tables
 234 CFLAGS-pwrite.c += -fexceptions -fasynchronous-unwind-tables
 235 CFLAGS-pwrite64.c += -fexceptions -fasynchronous-unwind-tables
 236 CFLAGS-sleep.c += -fexceptions
 237 CFLAGS-wait.c += -fexceptions -fasynchronous-unwind-tables
 238 CFLAGS-waitid.c += -fexceptions -fasynchronous-unwind-tables
 239 CFLAGS-waitpid.c += -fexceptions -fasynchronous-unwind-tables
 240 CFLAGS-wait4.c += -fexceptions -fasynchronous-unwind-tables
 241 CFLAGS-getopt.c += -fexceptions
 242 CFLAGS-wordexp.c += -fexceptions
 243 CFLAGS-wordexp.os = -fomit-frame-pointer
 244 CFLAGS-sysconf.c += -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
 245 CFLAGS-pathconf.c += -fexceptions
 246 CFLAGS-fpathconf.c += -fexceptions
 247 CFLAGS-spawn.c += -fexceptions
 248 CFLAGS-spawn.os = -fomit-frame-pointer
 249 CFLAGS-spawnp.c += -fexceptions
 250 CFLAGS-spawnp.os = -fomit-frame-pointer
 251 CFLAGS-spawni.c += -fexceptions
 252 CFLAGS-spawni.os = -fomit-frame-pointer
 253 CFLAGS-glob.c += $(uses-callbacks) -fexceptions
 254 CFLAGS-glob64.c += $(uses-callbacks) -fexceptions
 255 CFLAGS-getconf.c += -DGETCONF_DIR='"$(libexecdir)/getconf"'
 256 CFLAGS-execve.os = -fomit-frame-pointer
 257 CFLAGS-fexecve.os = -fomit-frame-pointer
 258 CFLAGS-execv.os = -fomit-frame-pointer
 259 CFLAGS-execle.os = -fomit-frame-pointer
 260 CFLAGS-execl.os = -fomit-frame-pointer
 261 CFLAGS-execvp.os = -fomit-frame-pointer
 262 CFLAGS-execlp.os = -fomit-frame-pointer
 263 CFLAGS-nanosleep.c += -fexceptions -fasynchronous-unwind-tables
 264
 265 tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
 266                 --none random --col --color --colour
 267
 268 tst-exec-ARGS = -- $(host-test-program-cmd)
 269 tst-exec-static-ARGS = $(tst-exec-ARGS)
 270 tst-execvpe5-ARGS = -- $(host-test-program-cmd)
 271 tst-spawn-ARGS = -- $(host-test-program-cmd)
 272 tst-spawn-static-ARGS = $(tst-spawn-ARGS)
 273 tst-dir-ARGS = `pwd` `cd $(common-objdir)/$(subdir); pwd` `cd $(common-objdir); pwd` $(objpfx)tst-dir
 274 tst-chmod-ARGS = $(objdir)
 275 tst-vfork3-ARGS = --test-dir=$(objpfx)
 276
 277 tst-rxspencer-ARGS = --utf8 rxspencer/tests
 278 tst-rxspencer-no-utf8-ARGS = rxspencer/tests
 279 tst-pcre-ARGS = PCRE.tests
 280 tst-boost-ARGS = BOOST.tests
 281 bug-glob1-ARGS = "$(objpfx)"
 282 tst-execvp3-ARGS = --test-dir=$(objpfx)
 283 CFLAGS-tst-spawn3.c += -DOBJPFX=\"$(objpfx)\"
 284
 285 $(objpfx)testcases.h: TESTS TESTS2C.sed
 286         LC_ALL=C sed -f TESTS2C.sed < $< > $@T
 287         mv $@T $@
 288 $(objpfx)runtests.o: $(objpfx)testcases.h
 289
 290 $(objpfx)ptestcases.h: PTESTS PTESTS2C.sed
 291         LC_ALL=C sed -f PTESTS2C.sed < $< > $@T
 292         mv $@T $@
 293 $(objpfx)runptests.o: $(objpfx)ptestcases.h
 294
 295 $(objpfx)tst-getopt-cancel: $(shared-thread-library)
 296
 297 test-xfail-annexc = yes
 298 $(objpfx)annexc.out: $(objpfx)annexc
 299         $(dir $<)$(notdir $<) '$(CC)' \
 300           '$(patsubst %,-I../%,$(sorted-subdirs)) -I../include $(+sysdep-includes) $(sysincludes) -I..' > $@; \
 301         $(evaluate-test)
 302
 303 annexc-CFLAGS = -O
 304 $(objpfx)annexc: annexc.c
 305         $(native-compile)
 306
 307 tst-fnmatch-ENV += MALLOC_TRACE=$(objpfx)tst-fnmatch.mtrace
 308
 309 $(objpfx)tst-fnmatch-mem.out: $(objpfx)tst-fnmatch.out
 310         $(common-objpfx)malloc/mtrace $(objpfx)tst-fnmatch.mtrace > $@; \
 311         $(evaluate-test)
 312
 313 bug-regex2-ENV = MALLOC_TRACE=$(objpfx)bug-regex2.mtrace
 314
 315 $(objpfx)bug-regex2-mem.out: $(objpfx)bug-regex2.out
 316         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex2.mtrace > $@; \
 317         $(evaluate-test)
 318
 319 bug-regex14-ENV = MALLOC_TRACE=$(objpfx)bug-regex14.mtrace
 320
 321 $(objpfx)bug-regex14-mem.out: $(objpfx)bug-regex14.out
 322         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex14.mtrace > $@; \
 323         $(evaluate-test)
 324
 325 bug-regex21-ENV = MALLOC_TRACE=$(objpfx)bug-regex21.mtrace
 326
 327 $(objpfx)bug-regex21-mem.out: $(objpfx)bug-regex21.out
 328         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex21.mtrace > $@; \
 329         $(evaluate-test)
 330
 331 bug-regex31-ENV = MALLOC_TRACE=$(objpfx)bug-regex31.mtrace
 332
 333 $(objpfx)bug-regex31-mem.out: $(objpfx)bug-regex31.out
 334         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex31.mtrace > $@; \
 335         $(evaluate-test)
 336
 337 bug-regex36-ENV = MALLOC_TRACE=$(objpfx)bug-regex36.mtrace
 338
 339 $(objpfx)bug-regex36-mem.out: $(objpfx)bug-regex36.out
 340         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex36.mtrace > $@; \
 341         $(evaluate-test)
 342
 343 tst-vfork3-ENV = MALLOC_TRACE=$(objpfx)tst-vfork3.mtrace
 344
 345 $(objpfx)tst-vfork3-mem.out: $(objpfx)tst-vfork3.out
 346         $(common-objpfx)malloc/mtrace $(objpfx)tst-vfork3.mtrace > $@; \
 347         $(evaluate-test)
 348
 349 # tst-rxspencer.mtrace is not generated, only
 350 # tst-rxspencer-no-utf8.mtrace, since otherwise the file has almost
 351 # 100M and takes very long time to process.
 352 tst-rxspencer-no-utf8-ENV += MALLOC_TRACE=$(objpfx)tst-rxspencer-no-utf8.mtrace
 353 $(objpfx)tst-rxspencer-no-utf8-mem.out: $(objpfx)tst-rxspencer-no-utf8.out
 354         $(common-objpfx)malloc/mtrace $(objpfx)tst-rxspencer-no-utf8.mtrace \
 355                                       > $@; \
 356         $(evaluate-test)
 357
 358 tst-pcre-ENV = MALLOC_TRACE=$(objpfx)tst-pcre.mtrace
 359 $(objpfx)tst-pcre-mem.out: $(objpfx)tst-pcre.out
 360         $(common-objpfx)malloc/mtrace $(objpfx)tst-pcre.mtrace > $@; \
 361         $(evaluate-test)
 362
 363 tst-boost-ENV = MALLOC_TRACE=$(objpfx)tst-boost.mtrace
 364 $(objpfx)tst-boost-mem.out: $(objpfx)tst-boost.out
 365         $(common-objpfx)malloc/mtrace $(objpfx)tst-boost.mtrace > $@; \
 366         $(evaluate-test)
 367
 368 $(objpfx)tst-getconf.out: tst-getconf.sh $(objpfx)getconf
 369         $(SHELL) $< $(common-objpfx) '$(built-program-cmd)'; \
 370         $(evaluate-test)
 371
 372 $(objpfx)bug-ga2-mem.out: $(objpfx)bug-ga2.out
 373         { test -r $(objpfx)bug-ga2.mtrace \
 374         || ( echo "bug-ga2.mtrace does not exist"; exit 77; ) \
 375         && $(common-objpfx)malloc/mtrace $(objpfx)bug-ga2.mtrace; } > $@; \
 376         $(evaluate-test)
 377
 378 bug-ga2-ENV = MALLOC_TRACE=$(objpfx)bug-ga2.mtrace
 379
 380 bug-glob2-ENV = MALLOC_TRACE=$(objpfx)bug-glob2.mtrace
 381
 382 $(objpfx)bug-glob2-mem.out: $(objpfx)bug-glob2.out
 383         $(common-objpfx)malloc/mtrace $(objpfx)bug-glob2.mtrace > $@; \
 384         $(evaluate-test)
 385
 386 tst-glob-tilde-ENV = MALLOC_TRACE=$(objpfx)tst-glob-tilde.mtrace
 387
 388 $(objpfx)tst-glob-tilde-mem.out: $(objpfx)tst-glob-tilde.out
 389         $(common-objpfx)malloc/mtrace $(objpfx)tst-glob-tilde.mtrace > $@; \
 390         $(evaluate-test)
 391
 392 $(inst_libexecdir)/getconf: $(inst_bindir)/getconf \
 393                             $(objpfx)getconf.speclist FORCE
 394         $(addprefix $(..)./scripts/mkinstalldirs ,\
 395                     $(filter-out $(wildcard $@),$@))
 396         while read spec; do \
 397           ln -f $< $@/$$spec.new || $(INSTALL_PROGRAM) $< $@/$$spec.new; \
 398           mv -f $@/$$spec.new $@/$$spec; \
 399         done < $(objpfx)getconf.speclist
 400
 401 $(objpfx)getconf.speclist: getconf-speclist.c posix-envs.def
 402         $(compile.c) -E -o - \
 403             | sed -n -e '/@@@PRESENT_/s/@@@PRESENT_//p' > $@.new
 404         mv -f $@.new $@
 405
 406 # This file is only actually needed at install time.  But forcing it to
 407 # be built both makes it available for eyeball inspection and avoids the
 408 # surprise of things that look like compilation being done by 'make install'.
 409 others: $(objpfx)getconf.speclist
 410
 411 $(objpfx)posix-conf-vars-def.h: $(..)scripts/gen-posix-conf-vars.awk \
 412                                 posix-conf-vars.list Makefile
 413         $(make-target-directory)
 414         $(AWK) -f $(filter-out Makefile, $^) > $@.tmp
 415         mv -f $@.tmp $@