libiberty/configure.ac

   1 dnl Process this file with autoconf to produce a configure script
   2
   3 AC_INIT
   4 AC_CONFIG_SRCDIR([xmalloc.c])
   5
   6 # This works around the fact that libtool configuration may change LD
   7 # for this particular configuration, but some shells, instead of
   8 # keeping the changes in LD private, export them just because LD is
   9 # exported.  We don't use libtool yet, but some day we might, so...
  10 ORIGINAL_LD_FOR_MULTILIBS=$LD
  11
  12 dnl We use these options to decide which functions to include.
  13 AC_ARG_WITH(target-subdir,
  14 [  --with-target-subdir=SUBDIR      Configuring in a subdirectory for target])
  15 AC_ARG_WITH(build-subdir,
  16 [  --with-build-subdir=SUBDIR       Configuring in a subdirectory for build])
  17 AC_ARG_WITH(cross-host,
  18 [  --with-cross-host=HOST           Configuring with a cross compiler])
  19 AC_ARG_WITH(newlib,
  20 [  --with-newlib                    Configuring with newlib])
  21
  22 if test "${srcdir}" = "."; then
  23   if test -n "${with_build_subdir}"; then
  24     libiberty_topdir="${srcdir}/../.."
  25     with_target_subdir=
  26   elif test -z "${with_target_subdir}"; then
  27     libiberty_topdir="${srcdir}/.."
  28   else
  29     if test "${with_target_subdir}" != "."; then
  30       libiberty_topdir="${srcdir}/${with_multisrctop}../.."
  31     else
  32       libiberty_topdir="${srcdir}/${with_multisrctop}.."
  33     fi
  34   fi
  35 else
  36   libiberty_topdir="${srcdir}/.."
  37 fi
  38 AC_SUBST(libiberty_topdir)
  39 AC_CONFIG_AUX_DIR($libiberty_topdir)
  40
  41 dnl Very limited version of automake's enable-maintainer-mode
  42
  43 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  44   dnl maintainer-mode is disabled by default
  45   AC_ARG_ENABLE(maintainer-mode,
  46 [  --enable-maintainer-mode
  47                           enable make rules and dependencies not useful
  48                           (and sometimes confusing) to the casual installer],
  49       maintainer_mode=$enableval,
  50       maintainer_mode=no)
  51
  52 AC_MSG_RESULT($maintainer_mode)
  53
  54 if test "$maintainer_mode" = "yes"; then
  55   MAINT=''
  56   NOTMAINT='#'
  57 else
  58   MAINT='#'
  59   NOTMAINT=''
  60 fi
  61 AC_SUBST(MAINT)dnl
  62 AC_SUBST(NOTMAINT)dnl
  63
  64 if test -z "$ETAGS"; then
  65   ETAGS=etags
  66 fi
  67 AC_SUBST([ETAGS])
  68
  69 # Do we have a single-tree copy of texinfo?  Even if we do, we can't
  70 # rely on it - libiberty is built before texinfo.
  71 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
  72 if test "x$MAKEINFO" = "x"; then
  73     MAKEINFO="@echo makeinfo missing; true"
  74     BUILD_INFO=
  75 else
  76     BUILD_INFO=info
  77     case "$MAKEINFO" in
  78       */missing\ makeinfo*)
  79         BUILD_INFO=
  80         AC_MSG_WARN([
  81 *** Makeinfo is missing. Info documentation will not be built.])
  82         ;;
  83       *)
  84         case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
  85           x*\ [[1-3]].* )
  86             MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
  87             BUILD_INFO=
  88             AC_MSG_WARN([
  89 *** Makeinfo is too old. Info documentation will not be built.])
  90           ;;
  91         esac
  92         ;;
  93     esac
  94 fi
  95 AC_SUBST(MAKEINFO)
  96 AC_SUBST(BUILD_INFO)
  97
  98 AC_CHECK_PROG(PERL, perl, perl, )
  99 if test x"$PERL" = x""; then
 100   HAVE_PERL='#'
 101 else
 102   HAVE_PERL=''
 103 fi
 104 AC_SUBST(HAVE_PERL)
 105
 106 AC_CANONICAL_HOST
 107
 108 dnl When we start using automake:
 109 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
 110
 111 dnl These must be called before AM_PROG_LIBTOOL, because it may want
 112 dnl to call AC_CHECK_PROG.
 113 AC_CHECK_TOOL(AR, ar)
 114 AC_CHECK_TOOL(RANLIB, ranlib, :)
 115
 116 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
 117 if test -n "$PLUGIN_OPTION"; then
 118   if $AR --help 2>&1 | grep -q "\--plugin"; then
 119     AR_PLUGIN_OPTION="$PLUGIN_OPTION"
 120     AC_SUBST(AR_PLUGIN_OPTION)
 121   fi
 122   if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
 123     RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
 124     AC_SUBST(RANLIB_PLUGIN_OPTION)
 125   fi
 126 fi
 127
 128 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
 129 # Add --enable-multilib to configure.
 130 # Default to --enable-multilib
 131 AC_ARG_ENABLE(multilib,
 132 [  --enable-multilib       build many library versions (default)],
 133 [case "$enableval" in
 134   yes) multilib=yes ;;
 135   no)  multilib=no ;;
 136   *)   AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
 137  esac],
 138               [multilib=yes])
 139
 140 # Even if the default multilib is not a cross compilation,
 141 # it may be that some of the other multilibs are.
 142 if test $cross_compiling = no && test $multilib = yes \
 143    && test "x${with_multisubdir}" != x ; then
 144    cross_compiling=maybe
 145 fi
 146
 147 # We may wish to install the target headers somewhere.
 148 AC_MSG_CHECKING([whether to install libiberty headers and static library])
 149 dnl install-libiberty is disabled by default
 150
 151 AC_ARG_ENABLE(install-libiberty,
 152 [  --enable-install-libiberty       Install headers and library for end users],
 153 enable_install_libiberty=$enableval,
 154 enable_install_libiberty=no)dnl
 155
 156 # Option parsed, now set things appropriately.
 157 case x"$enable_install_libiberty" in
 158   xyes|x)
 159     target_header_dir=libiberty
 160     ;;
 161   xno)
 162     target_header_dir=
 163     ;;
 164   *)
 165     # This could be sanity-checked in various ways...
 166     target_header_dir="${enable_install_libiberty}"
 167     ;;
 168 esac
 169 AC_MSG_RESULT($enable_install_libiberty)
 170 AC_MSG_NOTICE([target_header_dir = $target_header_dir])
 171
 172 GCC_NO_EXECUTABLES
 173 AC_PROG_CC
 174 AC_GNU_SOURCE
 175 AC_SYS_LARGEFILE
 176 AC_PROG_CPP_WERROR
 177
 178 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
 179                           -Wstrict-prototypes \
 180                           -Wshadow=local], [ac_libiberty_warn_cflags])
 181 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
 182
 183 AC_PROG_CC_C_O
 184 # autoconf is lame and doesn't give us any substitution variable for this.
 185 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
 186   NO_MINUS_C_MINUS_O=yes
 187 else
 188   OUTPUT_OPTION='-o $@'
 189 fi
 190 AC_SUBST(NO_MINUS_C_MINUS_O)
 191 AC_SUBST(OUTPUT_OPTION)
 192
 193 AC_C_CONST
 194 AC_C_INLINE
 195 AC_C_BIGENDIAN
 196
 197 dnl When we start using libtool:
 198 dnl Default to a non shared library.  This may be overridden by the
 199 dnl configure option --enable-shared.
 200 dnl AM_DISABLE_SHARED
 201
 202 dnl When we start using libtool:
 203 dnl AM_PROG_LIBTOOL
 204
 205 dnl When we start using automake:
 206 dnl AM_CONFIG_HEADER(config.h:config.in)
 207 AC_CONFIG_HEADER(config.h:config.in)
 208
 209 dnl When we start using automake:
 210 dnl AM_MAINTAINER_MODE
 211 dnl AC_EXEEXT
 212
 213 dnl When we start using automake:
 214 dnl AM_PROG_INSTALL
 215 AC_PROG_INSTALL
 216
 217 # Don't build the shared library for build.
 218 if [[ -n "${with_build_subdir}" ]]; then
 219   enable_shared=no
 220 fi
 221
 222 frag=
 223 case "${host}" in
 224   rs6000-ibm-aix3.1 | rs6000-ibm-aix)
 225                         frag=mh-aix ;;
 226   *-*-cxux7*)           frag=mh-cxux7 ;;
 227   *-*-freebsd2.1.*)     frag=mh-fbsd21 ;;
 228   *-*-freebsd2.2.[[012]])       frag=mh-fbsd21 ;;
 229   i370-*-opened*)       frag=mh-openedition ;;
 230   i[[34567]]86-*-windows*)      frag=mh-windows ;;
 231 esac
 232
 233 if [[ -n "${frag}" ]]; then
 234   frag=${libiberty_topdir}/libiberty/config/$frag
 235 fi
 236
 237 GCC_PICFLAG
 238
 239 # If they didn't specify --enable-shared, don't generate shared libs.
 240 case "${enable_shared}" in
 241   yes) shared=yes ;;
 242   no) shared=no ;;
 243   "") shared=no ;;
 244   *) shared=yes ;;
 245 esac
 246
 247 # ...unless --enable-host-shared was passed from top-level config:
 248 if [[ "${enable_host_shared}" = "yes" ]]; then
 249   shared=yes
 250 fi
 251
 252 if [[ "${shared}" != "yes" ]]; then
 253   PICFLAG=
 254 fi
 255 AC_SUBST(PICFLAG)
 256
 257 NOASANFLAG=
 258 case " ${CFLAGS} " in
 259   *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
 260   *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
 261 esac
 262 AC_SUBST(NOASANFLAG)
 263
 264 GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
 265 AC_SUBST(CET_HOST_FLAGS)
 266
 267 echo "# Warning: this fragment is automatically generated" > temp-frag
 268
 269 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
 270   echo "Appending ${frag} to xhost-mkfrag"
 271   echo "# Following fragment copied from ${frag}" >> temp-frag
 272   cat ${frag} >> temp-frag
 273 fi
 274
 275 # record if we want to build shared libs.
 276 if [[ "${shared}" = "yes" ]]; then
 277   echo enable_shared = yes >> temp-frag
 278 else
 279   echo enable_shared = no >> temp-frag
 280 fi
 281
 282 frag=xhost-mkfrag
 283 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
 284
 285 host_makefile_frag=${frag}
 286 AC_SUBST_FILE(host_makefile_frag)
 287
 288 # It's OK to check for header files.  Although the compiler may not be
 289 # able to link anything, it had better be able to at least compile
 290 # something.
 291 AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h stdio_ext.h process.h sys/prctl.h)
 292 AC_HEADER_SYS_WAIT
 293 AC_HEADER_TIME
 294
 295 libiberty_AC_DECLARE_ERRNO
 296
 297 # Determine sizes of some types.
 298 AC_CHECK_SIZEOF([int])
 299 AC_CHECK_SIZEOF([long])
 300 AC_CHECK_SIZEOF([size_t])
 301
 302 # Check for presense of long long
 303 AC_CHECK_TYPE([long long],
 304   [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
 305   [])
 306
 307 # Look for a 64-bit type.
 308 AC_MSG_CHECKING([for a 64-bit type])
 309 AC_CACHE_VAL(liberty_cv_uint64,
 310 [AC_TRY_COMPILE(
 311 [#ifdef HAVE_STDINT_H
 312 #include <stdint.h>
 313 #endif],
 314 [extern uint64_t foo;],
 315 liberty_cv_uint64=uint64_t,
 316 [AC_TRY_COMPILE(
 317 [#ifdef HAVE_LIMITS_H
 318 #include <limits.h>
 319 #endif
 320 #ifndef CHAR_BIT
 321 #define CHAR_BIT 8
 322 #endif],
 323 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
 324 liberty_cv_uint64="unsigned long",
 325 [AC_TRY_COMPILE(
 326 [#ifdef HAVE_LIMITS_H
 327 #include <limits.h>
 328 #endif
 329 #ifndef CHAR_BIT
 330 #define CHAR_BIT 8
 331 #endif],
 332 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
 333 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
 334 AC_MSG_RESULT($liberty_cv_uint64)
 335 if test "$liberty_cv_uint64" != none; then
 336   AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
 337                      [Define to an unsigned 64-bit type available in the compiler.])
 338 fi
 339
 340 AC_TYPE_INTPTR_T
 341 AC_TYPE_UINTPTR_T
 342 AC_TYPE_SSIZE_T
 343
 344 # Given the above check, we always have uintptr_t or a fallback
 345 # definition.  So define HAVE_UINTPTR_T in case any imported code
 346 # relies on it.
 347 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
 348
 349 AC_TYPE_PID_T
 350
 351 # This is the list of functions which libiberty will provide if they
 352 # are not available on the host.
 353
 354 funcs="asprintf"
 355 funcs="$funcs atexit"
 356 funcs="$funcs basename"
 357 funcs="$funcs bcmp"
 358 funcs="$funcs bcopy"
 359 funcs="$funcs bsearch"
 360 funcs="$funcs bzero"
 361 funcs="$funcs calloc"
 362 funcs="$funcs clock"
 363 funcs="$funcs ffs"
 364 funcs="$funcs getcwd"
 365 funcs="$funcs getpagesize"
 366 funcs="$funcs gettimeofday"
 367 funcs="$funcs index"
 368 funcs="$funcs insque"
 369 funcs="$funcs memchr"
 370 funcs="$funcs memcmp"
 371 funcs="$funcs memcpy"
 372 funcs="$funcs memmem"
 373 funcs="$funcs memmove"
 374 funcs="$funcs mempcpy"
 375 funcs="$funcs memset"
 376 funcs="$funcs mkstemps"
 377 funcs="$funcs putenv"
 378 funcs="$funcs random"
 379 funcs="$funcs rename"
 380 funcs="$funcs rindex"
 381 funcs="$funcs setenv"
 382 funcs="$funcs snprintf"
 383 funcs="$funcs sigsetmask"
 384 funcs="$funcs stpcpy"
 385 funcs="$funcs stpncpy"
 386 funcs="$funcs strcasecmp"
 387 funcs="$funcs strchr"
 388 funcs="$funcs strdup"
 389 funcs="$funcs strncasecmp"
 390 funcs="$funcs strndup"
 391 funcs="$funcs strnlen"
 392 funcs="$funcs strrchr"
 393 funcs="$funcs strstr"
 394 funcs="$funcs strtod"
 395 funcs="$funcs strtol"
 396 funcs="$funcs strtoul"
 397 funcs="$funcs strtoll"
 398 funcs="$funcs strtoull"
 399 funcs="$funcs strverscmp"
 400 funcs="$funcs tmpnam"
 401 funcs="$funcs vasprintf"
 402 funcs="$funcs vfprintf"
 403 funcs="$funcs vprintf"
 404 funcs="$funcs vsnprintf"
 405 funcs="$funcs vsprintf"
 406 funcs="$funcs waitpid"
 407 funcs="$funcs setproctitle"
 408
 409 # Also in the old function.def file: alloca, vfork, getopt.
 410
 411 vars="sys_errlist sys_nerr sys_siglist"
 412
 413 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
 414  getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \
 415  realpath setrlimit spawnve spawnvpe strerror strsignal sysconf sysctl \
 416  sysmp table times wait3 wait4"
 417
 418 # Darwin has sbrk, but it is deprecated and that produces build-time warnings
 419 # so do not check for it.
 420 case "${host}" in
 421   *-*-darwin*) ;;
 422   *) checkfuncs="$checkfuncs sbrk"
 423 esac
 424
 425 # These are neither executed nor required, but they help keep
 426 # autoheader happy without adding a bunch of text to acconfig.h.
 427 if test "x" = "y"; then
 428   AC_CHECK_FUNCS(asprintf atexit \
 429     basename bcmp bcopy bsearch bzero \
 430     calloc canonicalize_file_name clock \
 431     dup3 \
 432     ffs __fsetlocking \
 433     getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
 434     index insque \
 435     memchr memcmp memcpy memmem memmove memset mkstemps \
 436     on_exit \
 437     pipe2 psignal pstat_getdynamic pstat_getstatic putenv \
 438     random realpath rename rindex \
 439     sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
 440      stpcpy stpncpy strcasecmp strchr strdup \
 441      strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
 442      strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
 443     table times tmpnam \
 444     vasprintf vfprintf vprintf vsprintf \
 445     wait3 wait4 waitpid)
 446   AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
 447   AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
 448   AC_DEFINE(HAVE_SYS_NERR,    1, [Define if you have the sys_nerr variable.])
 449   AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
 450 fi
 451
 452 # For each of these functions, if the host does not provide the
 453 # function we want to put FN.o in LIBOBJS, and if the host does
 454 # provide the function, we want to define HAVE_FN in config.h.
 455
 456 setobjs=
 457 CHECK=
 458 if test -n "${with_target_subdir}"; then
 459
 460   # We are being configured as a target library.  AC_REPLACE_FUNCS
 461   # may not work correctly, because the compiler may not be able to
 462   # link executables.  Note that we may still be being configured
 463   # native.
 464
 465   # If we are being configured for newlib, we know which functions
 466   # newlib provide and which ones we will be expected to provide.
 467
 468   if test "x${with_newlib}" = "xyes"; then
 469     AC_LIBOBJ([asprintf])
 470     AC_LIBOBJ([basename])
 471     AC_LIBOBJ([insque])
 472     AC_LIBOBJ([random])
 473     AC_LIBOBJ([strdup])
 474     AC_LIBOBJ([vasprintf])
 475
 476     for f in $funcs; do
 477       case "$f" in
 478         asprintf | basename | insque | random | strdup | vasprintf)
 479           ;;
 480         *)
 481           n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 482           AC_DEFINE_UNQUOTED($n)
 483           ;;
 484       esac
 485     done
 486
 487     # newlib doesnt provide any of the variables in $vars, so we
 488     # dont have to check them here.
 489
 490     # Of the functions in $checkfuncs, newlib only has strerror.
 491     AC_DEFINE(HAVE_STRERROR)
 492
 493     setobjs=yes
 494
 495   fi
 496
 497   # If we are being configured for Mingw, we know which functions
 498   # Mingw provides and which ones we will be expected to provide.
 499
 500   case "${host}" in
 501   *-*-mingw*)
 502     AC_LIBOBJ([asprintf])
 503     AC_LIBOBJ([basename])
 504     AC_LIBOBJ([bcmp])
 505     AC_LIBOBJ([bcopy])
 506     AC_LIBOBJ([bzero])
 507     AC_LIBOBJ([clock])
 508     AC_LIBOBJ([ffs])
 509     AC_LIBOBJ([getpagesize])
 510     AC_LIBOBJ([index])
 511     AC_LIBOBJ([insque])
 512     AC_LIBOBJ([mempcpy])
 513     AC_LIBOBJ([mkstemps])
 514     AC_LIBOBJ([random])
 515     AC_LIBOBJ([rindex])
 516     AC_LIBOBJ([sigsetmask])
 517     AC_LIBOBJ([stpcpy])
 518     AC_LIBOBJ([stpncpy])
 519     AC_LIBOBJ([strndup])
 520     AC_LIBOBJ([strnlen])
 521     AC_LIBOBJ([strverscmp])
 522     AC_LIBOBJ([vasprintf])
 523     AC_LIBOBJ([waitpid])
 524
 525     for f in $funcs; do
 526       case "$f" in
 527         asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
 528           ;;
 529         *)
 530           n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 531           AC_DEFINE_UNQUOTED($n)
 532           ;;
 533       esac
 534     done
 535
 536     # Mingw doesnt provide any of the variables in $vars, so we
 537     # dont have to check them here.
 538
 539     # Of the functions in $checkfuncs, Mingw only has strerror.
 540     AC_DEFINE(HAVE_STRERROR)
 541
 542     setobjs=yes
 543     ;;
 544
 545   *-*-msdosdjgpp)
 546     AC_LIBOBJ([vasprintf])
 547     AC_LIBOBJ([vsnprintf])
 548     AC_LIBOBJ([snprintf])
 549     AC_LIBOBJ([asprintf])
 550
 551     for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
 552              getcwd getpagesize getrusage gettimeofday \
 553              index insque memchr memcmp memcpy memmove memset psignal \
 554              putenv random rename rindex sbrk setenv stpcpy strcasecmp \
 555              strchr strdup strerror strncasecmp strrchr strstr strtod \
 556              strtol strtoul sysconf times tmpnam vfprintf vprintf \
 557              vsprintf waitpid
 558     do
 559       n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 560       AC_DEFINE_UNQUOTED($n)
 561     done
 562
 563
 564     setobjs=yes
 565     ;;
 566
 567   esac
 568
 569 else
 570
 571    # Not a target library, so we set things up to run the test suite.
 572    CHECK=really-check
 573
 574 fi
 575
 576 AC_SUBST(CHECK)
 577 AC_SUBST(target_header_dir)
 578
 579 case "${host}" in
 580   *-*-cygwin* | *-*-mingw*)
 581     AC_DEFINE(HAVE_SYS_ERRLIST)
 582     AC_DEFINE(HAVE_SYS_NERR)
 583     ;;
 584 esac
 585
 586 if test -z "${setobjs}"; then
 587   case "${host}" in
 588
 589   *-*-vxworks*)
 590     # Handle VxWorks configuration specially, since on VxWorks the
 591     # libraries are actually on the target board, not in the file
 592     # system.
 593     AC_LIBOBJ([basename])
 594     AC_LIBOBJ([getpagesize])
 595     AC_LIBOBJ([insque])
 596     AC_LIBOBJ([random])
 597     AC_LIBOBJ([strcasecmp])
 598     AC_LIBOBJ([strncasecmp])
 599     AC_LIBOBJ([strdup])
 600     AC_LIBOBJ([vfork])
 601     AC_LIBOBJ([waitpid])
 602     AC_LIBOBJ([vasprintf])
 603     for f in $funcs; do
 604       case "$f" in
 605         basename | getpagesize | insque | random | strcasecmp)
 606           ;;
 607         strncasecmp | strdup | vfork | waitpid | vasprintf)
 608           ;;
 609         *)
 610           n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 611           AC_DEFINE_UNQUOTED($n)
 612           ;;
 613       esac
 614     done
 615
 616     # VxWorks doesn't provide any of the variables in $vars, so we
 617     # don't have to check them here.
 618
 619     # Of the functions in $checkfuncs, VxWorks only has strerror.
 620     AC_DEFINE(HAVE_STRERROR)
 621
 622     setobjs=yes
 623     ;;
 624
 625   esac
 626 fi
 627
 628 if test -z "${setobjs}"; then
 629
 630   case "${host}" in
 631
 632   *-*-android*)
 633     # On android, getpagesize is defined in unistd.h as a static inline
 634     # function, which AC_CHECK_FUNCS does not handle properly.
 635     ac_cv_func_getpagesize=yes
 636     ;;
 637
 638   hppa*-*-hpux*)
 639     # Replace system snprintf and vsnprintf with libiberty implementations.
 640     AC_LIBOBJ([snprintf])
 641     AC_LIBOBJ([vsnprintf])
 642     ;;
 643
 644   *-*-mingw32*)
 645     # Under mingw32, sys_nerr and sys_errlist exist, but they are
 646     # macros, so the test below won't find them.
 647     libiberty_cv_var_sys_nerr=yes
 648     libiberty_cv_var_sys_errlist=yes
 649     ;;
 650
 651   *-*-msdosdjgpp*)
 652     # vfork and fork are stubs.
 653     ac_cv_func_vfork_works=no
 654     ;;
 655
 656   *-*-uwin*)
 657     # Under some versions of uwin, vfork is notoriously buggy and the test
 658     # can hang configure; on other versions, vfork exists just as a stub.
 659     # FIXME: This should be removed once vfork in uwin's runtime is fixed.
 660     ac_cv_func_vfork_works=no
 661     # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
 662     # macros (actually, these are imported from a DLL, but the end effect
 663     # is the same), so the test below won't find them.
 664     libiberty_cv_var_sys_nerr=yes
 665     libiberty_cv_var_sys_errlist=yes
 666     ;;
 667
 668   *-*-*vms*)
 669     # Under VMS, vfork works very different than on Unix. The standard test
 670     # won't work, and it isn't easily adaptable. It makes more sense to
 671     # just force it.
 672     ac_cv_func_vfork_works=yes
 673     ;;
 674
 675   esac
 676
 677   # We haven't set the list of objects yet.  Use the standard autoconf
 678   # tests.  This will only work if the compiler works.
 679   AC_ISC_POSIX
 680   AC_REPLACE_FUNCS($funcs)
 681   libiberty_AC_FUNC_C_ALLOCA
 682   AC_FUNC_FORK
 683   if test $ac_cv_func_vfork_works = no; then
 684     AC_LIBOBJ([vfork])
 685   fi
 686   # We only need _doprnt if we might use it to implement v*printf.
 687   if test $ac_cv_func_vprintf != yes \
 688      || test $ac_cv_func_vfprintf != yes \
 689      || test $ac_cv_func_vsprintf != yes; then
 690     AC_REPLACE_FUNCS(_doprnt)
 691   else
 692     AC_CHECK_FUNCS(_doprnt)
 693   fi
 694
 695   for v in $vars; do
 696     AC_MSG_CHECKING([for $v])
 697     AC_CACHE_VAL(libiberty_cv_var_$v,
 698       [AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern int $v [];]],[[if ($v [0]) return 1;]])],
 699                       [eval "libiberty_cv_var_$v=yes"],
 700                       [eval "libiberty_cv_var_$v=no"])])
 701     if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
 702       AC_MSG_RESULT(yes)
 703       n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 704       AC_DEFINE_UNQUOTED($n)
 705     else
 706       AC_MSG_RESULT(no)
 707     fi
 708   done
 709
 710   # special check for _system_configuration because AIX <4.3.2 do not
 711   # contain the `physmem' member.
 712   AC_MSG_CHECKING([for external symbol _system_configuration])
 713   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
 714                         [[double x = _system_configuration.physmem;]])],
 715     [AC_MSG_RESULT([yes])
 716     AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
 717               [Define if you have the _system_configuration variable.])],
 718     [AC_MSG_RESULT([no])])
 719
 720   AC_CHECK_FUNCS($checkfuncs)
 721   AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
 722   AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc])
 723   case "${host}" in
 724       *-*-darwin*) ;; # Darwin's sbrk implementation is deprecated.
 725       *) AC_CHECK_DECLS([sbrk]);;
 726   esac
 727   AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
 728   AC_CHECK_DECLS([strverscmp])
 729   AC_CHECK_DECLS([strnlen])
 730   libiberty_NEED_DECLARATION(canonicalize_file_name)
 731 fi
 732
 733 # Figure out which version of pexecute to use.
 734 case "${host}" in
 735      *-*-mingw* | *-*-winnt*)   pexecute=pex-win32  ;;
 736      *-*-msdosdjgpp*)           pexecute=pex-djgpp  ;;
 737      *-*-msdos*)                pexecute=pex-msdos  ;;
 738      *)                         pexecute=pex-unix   ;;
 739 esac
 740 AC_SUBST(pexecute)
 741
 742 libiberty_AC_FUNC_STRNCMP
 743
 744 # Install a library built with a cross compiler in $(tooldir) rather
 745 # than $(libdir).
 746 if test -z "${with_cross_host}"; then
 747   INSTALL_DEST=libdir
 748 else
 749   INSTALL_DEST=tooldir
 750 fi
 751 AC_SUBST(INSTALL_DEST)
 752
 753 m4_pattern_allow(LIBOBJS)
 754 L=""
 755 for l in x $LIBOBJS; do
 756   case $l in
 757     x) ;;
 758     *) L="$L ./$l" ;;
 759   esac
 760 done
 761 LIBOBJS="$L"
 762
 763 dnl Required by html and install-html
 764 AC_SUBST(datarootdir)
 765 AC_SUBST(docdir)
 766 AC_SUBST(htmldir)
 767
 768 # We need multilib support, but only if configuring for the target.
 769 AC_CONFIG_FILES([Makefile testsuite/Makefile])
 770 AC_CONFIG_COMMANDS([default],
 771   [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
 772 if test -n "$CONFIG_FILES"; then
 773   if test -n "${with_target_subdir}"; then
 774     # FIXME: We shouldn't need to set ac_file
 775     ac_file=Makefile
 776     LD="${ORIGINAL_LD_FOR_MULTILIBS}"
 777     . ${libiberty_topdir}/config-ml.in
 778   fi
 779 fi]],
 780 [[srcdir=${srcdir}
 781 host=${host}
 782 target=${target}
 783 with_target_subdir=${with_target_subdir}
 784 with_multisubdir=${with_multisubdir}
 785 ac_configure_args="--enable-multilib ${ac_configure_args}"
 786 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
 787 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
 788 libiberty_topdir=${libiberty_topdir}
 789 ]])
 790 AC_OUTPUT