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 _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         execveat \
  71         glob64-time64 \
  72         globfree64-time64
  73
  74 aux             := init-posix environ
  75 tests           := test-errno tstgetopt testfnm runtests runptests \
  76                    tst-preadwrite tst-preadwrite64 test-vfork regexbug1 \
  77                    tst-mmap tst-mmap-offset tst-getaddrinfo tst-truncate \
  78                    tst-truncate64 tst-fork tst-fnmatch tst-regexloc tst-dir \
  79                    tst-chmod bug-regex1 bug-regex2 bug-regex3 bug-regex4 \
  80                    tst-gnuglob tst-gnuglob64 tst-regex bug-regex6 bug-regex7 \
  81                    bug-regex8 bug-regex9 bug-regex10 bug-regex11 bug-regex12 \
  82                    bug-regex13 bug-regex14 bug-regex15 bug-regex16 \
  83                    bug-regex17 bug-regex18 bug-regex19 \
  84                    bug-regex21 bug-regex22 bug-regex23 bug-regex24 \
  85                    bug-regex25 bug-regex26 bug-regex27 bug-regex28 \
  86                    bug-regex29 bug-regex30 bug-regex31 bug-regex32 \
  87                    tst-nice tst-nanosleep tst-regex2 \
  88                    transbug tst-rxspencer tst-pcre tst-boost \
  89                    bug-ga1 tst-vfork1 tst-vfork2 tst-vfork3 \
  90                    tst-waitid tst-wait4 tst-wait3 \
  91                    tst-getaddrinfo2 bug-glob2 bug-glob3 tst-sysconf \
  92                    tst-execvp1 tst-execvp2 tst-execlp1 tst-execlp2 \
  93                    tst-execv1 tst-execv2 tst-execl1 tst-execl2 \
  94                    tst-execve1 tst-execve2 tst-execle1 tst-execle2 \
  95                    tst-execvp3 tst-execvp4 \
  96                    tst-execvpe1 tst-execvpe2 tst-execvpe3 tst-execvpe4 \
  97                    tst-execvpe5 tst-execvpe6 \
  98                    tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset \
  99                    bug-getopt1 bug-getopt2 bug-getopt3 bug-getopt4 \
 100                    bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35 \
 101                    tst-pathconf tst-rxspencer-no-utf8 \
 102                    tst-fnmatch3 bug-regex36 \
 103                    tst-fnmatch4 tst-fnmatch5 tst-fnmatch6 \
 104                    tst-posix_spawn-fd tst-posix_spawn-setsid \
 105                    tst-posix_fadvise tst-posix_fadvise64 \
 106                    tst-sysconf-empty-chroot tst-glob_symlinks tst-fexecve \
 107                    tst-glob-tilde test-ssize-max tst-spawn4 bug-regex37 \
 108                    bug-regex38 tst-regcomp-truncated tst-spawn-chdir \
 109                    tst-wordexp-nocmd tst-execveat
 110
 111 # Test for the glob symbol version that was replaced in glibc 2.27.
 112 ifeq ($(have-GLIBC_2.26)$(build-shared),yesyes)
 113 tests += tst-glob_lstat_compat
 114 endif
 115
 116 # Test for the posix_spawn, posix_spawnp symbol versions replaced in
 117 # glibc 2.15.
 118 ifeq ($(have-GLIBC_2.14)$(build-shared),yesyes)
 119 tests += tst-spawn4-compat
 120 endif
 121
 122 tests-internal  := bug-regex5 bug-regex20 bug-regex33 \
 123                    tst-rfc3484 tst-rfc3484-2 tst-rfc3484-3
 124 tests-container := bug-ga2
 125 tests-time64    := tst-wait4-time64 tst-wait3-time64 tst-gnuglob64-time64
 126 xtests          := tst-getaddrinfo4 tst-getaddrinfo5 tst-sched_rr_get_interval
 127 xtests-time64   := tst-sched_rr_get_interval-time64
 128 ifeq (yes,$(build-shared))
 129 test-srcs       := globtest
 130 tests           += wordexp-test tst-exec tst-spawn tst-spawn2 tst-spawn3
 131 endif
 132 ifeq (yesyes,$(build-shared)$(have-thread-library))
 133 tests           += tst-getopt-cancel tst-_Fork
 134 endif
 135 tests-static    = tst-exec-static tst-spawn-static
 136 tests           += $(tests-static)
 137 others          := getconf
 138 install-bin     := getconf
 139 install-others-programs := $(inst_libexecdir)/getconf
 140
 141 before-compile  += $(objpfx)posix-conf-vars-def.h
 142
 143 # So they get cleaned up.
 144 generated += $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \
 145              annexc annexc.out wordexp-tst.out bug-regex2-mem.out \
 146              bug-regex2.mtrace bug-regex14-mem.out bug-regex14.mtrace \
 147              bug-regex21-mem.out bug-regex21.mtrace \
 148              bug-regex31-mem.out bug-regex31.mtrace \
 149              tst-rxspencer-no-utf8-mem.out tst-rxspencer-no-utf8.mtrace \
 150              tst-getconf.out \
 151              tst-pcre-mem.out tst-pcre.mtrace tst-boost-mem.out \
 152              tst-boost.mtrace bug-ga2.mtrace bug-ga2-mem.out \
 153              bug-glob2.mtrace bug-glob2-mem.out tst-vfork3-mem.out \
 154              tst-vfork3.mtrace getconf.speclist tst-fnmatch-mem.out \
 155              tst-fnmatch.mtrace bug-regex36.mtrace \
 156              testcases.h ptestcases.h
 157
 158 ifeq ($(run-built-tests),yes)
 159 ifeq (yes,$(build-shared))
 160 tests-special += $(objpfx)globtest.out $(objpfx)wordexp-tst.out
 161 endif
 162 endif
 163
 164 # Run a test on the header files we use.
 165 # XXX Please note that for now we ignore the result of this test.
 166 tests-special += $(objpfx)annexc.out
 167 ifeq ($(run-built-tests),yes)
 168 tests-special += $(objpfx)bug-regex2-mem.out $(objpfx)bug-regex14-mem.out \
 169                  $(objpfx)bug-regex21-mem.out $(objpfx)bug-regex31-mem.out \
 170                  $(objpfx)tst-rxspencer-no-utf8-mem.out $(objpfx)tst-pcre-mem.out \
 171                  $(objpfx)tst-boost-mem.out $(objpfx)tst-getconf.out \
 172                  $(objpfx)bug-glob2-mem.out $(objpfx)tst-vfork3-mem.out \
 173                  $(objpfx)tst-fnmatch-mem.out $(objpfx)bug-regex36-mem.out \
 174                  $(objpfx)tst-glob-tilde-mem.out $(objpfx)bug-ga2-mem.out
 175 endif
 176
 177 include ../Rules
 178
 179 ifeq ($(run-built-tests),yes)
 180 # globtest and wordexp-test currently only works with shared libraries
 181 ifeq (yes,$(build-shared))
 182 $(objpfx)globtest.out: globtest.sh $(objpfx)globtest
 183         $(SHELL) $< $(common-objpfx) '$(test-via-rtld-prefix)' \
 184                 '$(test-program-prefix)' '$(test-wrapper-env)'; \
 185         $(evaluate-test)
 186 $(objpfx)wordexp-tst.out: wordexp-tst.sh $(objpfx)wordexp-test
 187         $(SHELL) $< $(common-objpfx) '$(test-program-prefix-before-env)' \
 188                  '$(run-program-env)' '$(test-program-prefix-after-env)'; \
 189         $(evaluate-test)
 190 endif
 191
 192 LOCALES := cs_CZ.UTF-8 da_DK.ISO-8859-1 de_DE.ISO-8859-1 de_DE.UTF-8 \
 193            en_US.UTF-8 es_US.ISO-8859-1 es_US.UTF-8 ja_JP.EUC-JP tr_TR.UTF-8 \
 194            cs_CZ.ISO-8859-2
 195 include ../gen-locales.mk
 196
 197 $(objpfx)bug-regex1.out: $(gen-locales)
 198 $(objpfx)bug-regex4.out: $(gen-locales)
 199 $(objpfx)bug-regex5.out: $(gen-locales)
 200 $(objpfx)bug-regex6.out: $(gen-locales)
 201 $(objpfx)bug-regex17.out: $(gen-locales)
 202 $(objpfx)bug-regex18.out: $(gen-locales)
 203 $(objpfx)bug-regex19.out: $(gen-locales)
 204 $(objpfx)bug-regex20.out: $(gen-locales)
 205 $(objpfx)bug-regex22.out: $(gen-locales)
 206 $(objpfx)bug-regex23.out: $(gen-locales)
 207 $(objpfx)bug-regex25.out: $(gen-locales)
 208 $(objpfx)bug-regex26.out: $(gen-locales)
 209 $(objpfx)bug-regex30.out: $(gen-locales)
 210 $(objpfx)bug-regex32.out: $(gen-locales)
 211 $(objpfx)bug-regex33.out: $(gen-locales)
 212 $(objpfx)bug-regex34.out: $(gen-locales)
 213 $(objpfx)bug-regex35.out: $(gen-locales)
 214 $(objpfx)tst-fnmatch.out: $(gen-locales)
 215 $(objpfx)tst-fnmatch4.out: $(gen-locales)
 216 $(objpfx)tst-fnmatch5.out: $(gen-locales)
 217 $(objpfx)tst-fnmatch6.out: $(gen-locales)
 218 $(objpfx)tst-regex.out: $(gen-locales)
 219 $(objpfx)tst-regex2.out: $(gen-locales)
 220 $(objpfx)tst-regexloc.out: $(gen-locales)
 221 $(objpfx)tst-rxspencer.out: $(gen-locales)
 222 $(objpfx)tst-rxspencer-no-utf8.out: $(gen-locales)
 223 $(objpfx)tst-regcomp-truncated.out: $(gen-locales)
 224 endif
 225
 226 # If we will use the generic uname implementation, we must figure out what
 227 # it will say by examining the system, and write the results in config-name.h.
 228 uname.c: $(objpfx)config-name.h
 229 $(objpfx)config-name.h: $(..)scripts/config-uname.sh $(common-objpfx)config.make
 230         $(make-target-directory)
 231         $< '$(config-os)' '$(config-release)' \
 232            '$(config-machine)-$(config-vendor)' > $@.new
 233         mv -f $@.new $@
 234
 235 CFLAGS-getaddrinfo.c += -DRESOLVER -fexceptions
 236 CFLAGS-pause.c += -fexceptions -fasynchronous-unwind-tables
 237 CFLAGS-pread.c += -fexceptions -fasynchronous-unwind-tables
 238 CFLAGS-pread64.c += -fexceptions -fasynchronous-unwind-tables
 239 CFLAGS-pwrite.c += -fexceptions -fasynchronous-unwind-tables
 240 CFLAGS-pwrite64.c += -fexceptions -fasynchronous-unwind-tables
 241 CFLAGS-sleep.c += -fexceptions
 242 CFLAGS-wait.c += -fexceptions -fasynchronous-unwind-tables
 243 CFLAGS-waitid.c += -fexceptions -fasynchronous-unwind-tables
 244 CFLAGS-waitpid.c += -fexceptions -fasynchronous-unwind-tables
 245 CFLAGS-wait4.c += -fexceptions -fasynchronous-unwind-tables
 246 CFLAGS-getopt.c += -fexceptions
 247 CFLAGS-wordexp.c += -fexceptions
 248 CFLAGS-wordexp.os = -fomit-frame-pointer
 249 CFLAGS-sysconf.c += -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
 250 CFLAGS-pathconf.c += -fexceptions
 251 CFLAGS-fpathconf.c += -fexceptions
 252 CFLAGS-spawn.c += -fexceptions
 253 CFLAGS-spawn.os = -fomit-frame-pointer
 254 CFLAGS-spawnp.c += -fexceptions
 255 CFLAGS-spawnp.os = -fomit-frame-pointer
 256 CFLAGS-spawni.c += -fexceptions
 257 CFLAGS-spawni.os = -fomit-frame-pointer
 258 CFLAGS-glob.c += $(uses-callbacks) -fexceptions
 259 CFLAGS-glob64.c += $(uses-callbacks) -fexceptions
 260 CFLAGS-getconf.c += -DGETCONF_DIR='"$(libexecdir)/getconf"'
 261 CFLAGS-execve.os = -fomit-frame-pointer
 262 CFLAGS-fexecve.os = -fomit-frame-pointer
 263 CFLAGS-execv.os = -fomit-frame-pointer
 264 CFLAGS-execle.os = -fomit-frame-pointer
 265 CFLAGS-execl.os = -fomit-frame-pointer
 266 CFLAGS-execvp.os = -fomit-frame-pointer
 267 CFLAGS-execlp.os = -fomit-frame-pointer
 268 CFLAGS-nanosleep.c += -fexceptions -fasynchronous-unwind-tables
 269 CFLAGS-fork.c = $(libio-mtsafe)
 270
 271 tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
 272                 --none random --col --color --colour
 273
 274 tst-exec-ARGS = -- $(host-test-program-cmd)
 275 tst-exec-static-ARGS = $(tst-exec-ARGS)
 276 tst-execvpe5-ARGS = -- $(host-test-program-cmd)
 277 tst-spawn-ARGS = -- $(host-test-program-cmd)
 278 tst-spawn-static-ARGS = $(tst-spawn-ARGS)
 279 tst-dir-ARGS = `pwd` `cd $(common-objdir)/$(subdir); pwd` `cd $(common-objdir); pwd` $(objpfx)tst-dir
 280 tst-chmod-ARGS = $(objdir)
 281 tst-vfork3-ARGS = --test-dir=$(objpfx)
 282
 283 tst-rxspencer-ARGS = --utf8 rxspencer/tests
 284 tst-rxspencer-no-utf8-ARGS = rxspencer/tests
 285 tst-pcre-ARGS = PCRE.tests
 286 tst-boost-ARGS = BOOST.tests
 287 bug-glob1-ARGS = "$(objpfx)"
 288 tst-execvp3-ARGS = --test-dir=$(objpfx)
 289 CFLAGS-tst-spawn3.c += -DOBJPFX=\"$(objpfx)\"
 290
 291 $(objpfx)testcases.h: TESTS TESTS2C.sed
 292         LC_ALL=C sed -f TESTS2C.sed < $< > $@T
 293         mv $@T $@
 294 $(objpfx)runtests.o: $(objpfx)testcases.h
 295
 296 $(objpfx)ptestcases.h: PTESTS PTESTS2C.sed
 297         LC_ALL=C sed -f PTESTS2C.sed < $< > $@T
 298         mv $@T $@
 299 $(objpfx)runptests.o: $(objpfx)ptestcases.h
 300
 301 $(objpfx)tst-getopt-cancel: $(shared-thread-library)
 302 $(objpfx)tst-_Fork: $(shared-thread-library)
 303
 304 test-xfail-annexc = yes
 305 $(objpfx)annexc.out: $(objpfx)annexc
 306         $(dir $<)$(notdir $<) '$(CC)' \
 307           '$(patsubst %,-I../%,$(sorted-subdirs)) -I../include $(+sysdep-includes) $(sysincludes) -I..' > $@; \
 308         $(evaluate-test)
 309
 310 annexc-CFLAGS = -O
 311 $(objpfx)annexc: annexc.c
 312         $(native-compile)
 313
 314 tst-fnmatch-ENV += MALLOC_TRACE=$(objpfx)tst-fnmatch.mtrace
 315
 316 $(objpfx)tst-fnmatch-mem.out: $(objpfx)tst-fnmatch.out
 317         $(common-objpfx)malloc/mtrace $(objpfx)tst-fnmatch.mtrace > $@; \
 318         $(evaluate-test)
 319
 320 bug-regex2-ENV = MALLOC_TRACE=$(objpfx)bug-regex2.mtrace
 321
 322 $(objpfx)bug-regex2-mem.out: $(objpfx)bug-regex2.out
 323         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex2.mtrace > $@; \
 324         $(evaluate-test)
 325
 326 bug-regex14-ENV = MALLOC_TRACE=$(objpfx)bug-regex14.mtrace
 327
 328 $(objpfx)bug-regex14-mem.out: $(objpfx)bug-regex14.out
 329         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex14.mtrace > $@; \
 330         $(evaluate-test)
 331
 332 bug-regex21-ENV = MALLOC_TRACE=$(objpfx)bug-regex21.mtrace
 333
 334 $(objpfx)bug-regex21-mem.out: $(objpfx)bug-regex21.out
 335         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex21.mtrace > $@; \
 336         $(evaluate-test)
 337
 338 bug-regex31-ENV = MALLOC_TRACE=$(objpfx)bug-regex31.mtrace
 339
 340 $(objpfx)bug-regex31-mem.out: $(objpfx)bug-regex31.out
 341         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex31.mtrace > $@; \
 342         $(evaluate-test)
 343
 344 bug-regex36-ENV = MALLOC_TRACE=$(objpfx)bug-regex36.mtrace
 345
 346 $(objpfx)bug-regex36-mem.out: $(objpfx)bug-regex36.out
 347         $(common-objpfx)malloc/mtrace $(objpfx)bug-regex36.mtrace > $@; \
 348         $(evaluate-test)
 349
 350 tst-vfork3-ENV = MALLOC_TRACE=$(objpfx)tst-vfork3.mtrace
 351
 352 $(objpfx)tst-vfork3-mem.out: $(objpfx)tst-vfork3.out
 353         $(common-objpfx)malloc/mtrace $(objpfx)tst-vfork3.mtrace > $@; \
 354         $(evaluate-test)
 355
 356 # tst-rxspencer.mtrace is not generated, only
 357 # tst-rxspencer-no-utf8.mtrace, since otherwise the file has almost
 358 # 100M and takes very long time to process.
 359 tst-rxspencer-no-utf8-ENV += MALLOC_TRACE=$(objpfx)tst-rxspencer-no-utf8.mtrace
 360 $(objpfx)tst-rxspencer-no-utf8-mem.out: $(objpfx)tst-rxspencer-no-utf8.out
 361         $(common-objpfx)malloc/mtrace $(objpfx)tst-rxspencer-no-utf8.mtrace \
 362                                       > $@; \
 363         $(evaluate-test)
 364
 365 tst-pcre-ENV = MALLOC_TRACE=$(objpfx)tst-pcre.mtrace
 366 $(objpfx)tst-pcre-mem.out: $(objpfx)tst-pcre.out
 367         $(common-objpfx)malloc/mtrace $(objpfx)tst-pcre.mtrace > $@; \
 368         $(evaluate-test)
 369
 370 tst-boost-ENV = MALLOC_TRACE=$(objpfx)tst-boost.mtrace
 371 $(objpfx)tst-boost-mem.out: $(objpfx)tst-boost.out
 372         $(common-objpfx)malloc/mtrace $(objpfx)tst-boost.mtrace > $@; \
 373         $(evaluate-test)
 374
 375 $(objpfx)tst-getconf.out: tst-getconf.sh $(objpfx)getconf
 376         $(SHELL) $< $(common-objpfx) '$(built-program-cmd)'; \
 377         $(evaluate-test)
 378
 379 $(objpfx)bug-ga2-mem.out: $(objpfx)bug-ga2.out
 380         { test -r $(objpfx)bug-ga2.mtrace \
 381         || ( echo "bug-ga2.mtrace does not exist"; exit 77; ) \
 382         && $(common-objpfx)malloc/mtrace $(objpfx)bug-ga2.mtrace; } > $@; \
 383         $(evaluate-test)
 384
 385 bug-ga2-ENV = MALLOC_TRACE=$(objpfx)bug-ga2.mtrace
 386
 387 bug-glob2-ENV = MALLOC_TRACE=$(objpfx)bug-glob2.mtrace
 388
 389 $(objpfx)bug-glob2-mem.out: $(objpfx)bug-glob2.out
 390         $(common-objpfx)malloc/mtrace $(objpfx)bug-glob2.mtrace > $@; \
 391         $(evaluate-test)
 392
 393 tst-glob-tilde-ENV = MALLOC_TRACE=$(objpfx)tst-glob-tilde.mtrace
 394
 395 $(objpfx)tst-glob-tilde-mem.out: $(objpfx)tst-glob-tilde.out
 396         $(common-objpfx)malloc/mtrace $(objpfx)tst-glob-tilde.mtrace > $@; \
 397         $(evaluate-test)
 398
 399 $(inst_libexecdir)/getconf: $(inst_bindir)/getconf \
 400                             $(objpfx)getconf.speclist FORCE
 401         $(addprefix $(..)./scripts/mkinstalldirs ,\
 402                     $(filter-out $(wildcard $@),$@))
 403         while read spec; do \
 404           ln -f $< $@/$$spec.new || $(INSTALL_PROGRAM) $< $@/$$spec.new; \
 405           mv -f $@/$$spec.new $@/$$spec; \
 406         done < $(objpfx)getconf.speclist
 407
 408 $(objpfx)getconf.speclist: getconf-speclist.c posix-envs.def
 409         $(compile.c) -E -o - \
 410             | sed -n -e '/@@@PRESENT_/s/@@@PRESENT_//p' > $@.new
 411         mv -f $@.new $@
 412
 413 # This file is only actually needed at install time.  But forcing it to
 414 # be built both makes it available for eyeball inspection and avoids the
 415 # surprise of things that look like compilation being done by 'make install'.
 416 others: $(objpfx)getconf.speclist
 417
 418 $(objpfx)posix-conf-vars-def.h: $(..)scripts/gen-posix-conf-vars.awk \
 419                                 posix-conf-vars.list Makefile
 420         $(make-target-directory)
 421         $(AWK) -f $(filter-out Makefile, $^) > $@.tmp
 422         mv -f $@.tmp $@