configure.ac revision 1.1.1.7
1dnl Process this file with autoconf to produce a configure script 2 3AC_PREREQ(2.64) 4AC_INIT 5AC_CONFIG_SRCDIR([xmalloc.c]) 6 7# This works around the fact that libtool configuration may change LD 8# for this particular configuration, but some shells, instead of 9# keeping the changes in LD private, export them just because LD is 10# exported. We don't use libtool yet, but some day we might, so... 11ORIGINAL_LD_FOR_MULTILIBS=$LD 12 13dnl We use these options to decide which functions to include. 14AC_ARG_WITH(target-subdir, 15[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target]) 16AC_ARG_WITH(build-subdir, 17[ --with-build-subdir=SUBDIR Configuring in a subdirectory for build]) 18AC_ARG_WITH(cross-host, 19[ --with-cross-host=HOST Configuring with a cross compiler]) 20AC_ARG_WITH(newlib, 21[ --with-newlib Configuring with newlib]) 22 23if test "${srcdir}" = "."; then 24 if test -n "${with_build_subdir}"; then 25 libiberty_topdir="${srcdir}/../.." 26 with_target_subdir= 27 elif test -z "${with_target_subdir}"; then 28 libiberty_topdir="${srcdir}/.." 29 else 30 if test "${with_target_subdir}" != "."; then 31 libiberty_topdir="${srcdir}/${with_multisrctop}../.." 32 else 33 libiberty_topdir="${srcdir}/${with_multisrctop}.." 34 fi 35 fi 36else 37 libiberty_topdir="${srcdir}/.." 38fi 39AC_SUBST(libiberty_topdir) 40AC_CONFIG_AUX_DIR($libiberty_topdir) 41 42dnl Very limited version of automake's enable-maintainer-mode 43 44AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 45 dnl maintainer-mode is disabled by default 46 AC_ARG_ENABLE(maintainer-mode, 47[ --enable-maintainer-mode 48 enable make rules and dependencies not useful 49 (and sometimes confusing) to the casual installer], 50 maintainer_mode=$enableval, 51 maintainer_mode=no) 52 53AC_MSG_RESULT($maintainer_mode) 54 55if test "$maintainer_mode" = "yes"; then 56 MAINT='' 57 NOTMAINT='#' 58else 59 MAINT='#' 60 NOTMAINT='' 61fi 62AC_SUBST(MAINT)dnl 63AC_SUBST(NOTMAINT)dnl 64 65# Do we have a single-tree copy of texinfo? Even if we do, we can't 66# rely on it - libiberty is built before texinfo. 67AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, ) 68if test "x$MAKEINFO" = "x"; then 69 MAKEINFO="@echo makeinfo missing; true" 70 BUILD_INFO= 71else 72 BUILD_INFO=info 73 case "$MAKEINFO" in 74 */missing\ makeinfo*) 75 BUILD_INFO= 76 AC_MSG_WARN([ 77*** Makeinfo is missing. Info documentation will not be built.]) 78 ;; 79 *) 80 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in 81 x*\ [[1-3]].* ) 82 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true" 83 BUILD_INFO= 84 AC_MSG_WARN([ 85*** Makeinfo is too old. Info documentation will not be built.]) 86 ;; 87 esac 88 ;; 89 esac 90fi 91AC_SUBST(MAKEINFO) 92AC_SUBST(BUILD_INFO) 93 94AC_CHECK_PROG(PERL, perl, perl, ) 95if test x"$PERL" = x""; then 96 HAVE_PERL='#' 97else 98 HAVE_PERL='' 99fi 100AC_SUBST(HAVE_PERL) 101 102AC_CANONICAL_HOST 103 104dnl When we start using automake: 105dnl AM_INIT_AUTOMAKE(libiberty, 1.0) 106 107dnl These must be called before AM_PROG_LIBTOOL, because it may want 108dnl to call AC_CHECK_PROG. 109AC_CHECK_TOOL(AR, ar) 110AC_CHECK_TOOL(RANLIB, ranlib, :) 111 112dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB. 113# Add --enable-multilib to configure. 114# Default to --enable-multilib 115AC_ARG_ENABLE(multilib, 116[ --enable-multilib build many library versions (default)], 117[case "$enableval" in 118 yes) multilib=yes ;; 119 no) multilib=no ;; 120 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;; 121 esac], 122 [multilib=yes]) 123 124# Even if the default multilib is not a cross compilation, 125# it may be that some of the other multilibs are. 126if test $cross_compiling = no && test $multilib = yes \ 127 && test "x${with_multisubdir}" != x ; then 128 cross_compiling=maybe 129fi 130 131# We may wish to install the target headers somewhere. 132AC_MSG_CHECKING([whether to install libiberty headers and static library]) 133dnl install-libiberty is disabled by default 134 135AC_ARG_ENABLE(install-libiberty, 136[ --enable-install-libiberty Install headers and library for end users], 137enable_install_libiberty=$enableval, 138enable_install_libiberty=no)dnl 139 140# Option parsed, now set things appropriately. 141case x"$enable_install_libiberty" in 142 xyes|x) 143 target_header_dir=libiberty 144 ;; 145 xno) 146 target_header_dir= 147 ;; 148 *) 149 # This could be sanity-checked in various ways... 150 target_header_dir="${enable_install_libiberty}" 151 ;; 152esac 153AC_MSG_RESULT($enable_install_libiberty) 154AC_MSG_NOTICE([target_header_dir = $target_header_dir]) 155 156GCC_NO_EXECUTABLES 157AC_PROG_CC 158AC_GNU_SOURCE 159AC_SYS_LARGEFILE 160AC_PROG_CPP_WERROR 161 162ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \ 163 -Wstrict-prototypes \ 164 -Wshadow=local], [ac_libiberty_warn_cflags]) 165ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags]) 166 167AC_PROG_CC_C_O 168# autoconf is lame and doesn't give us any substitution variable for this. 169if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then 170 NO_MINUS_C_MINUS_O=yes 171else 172 OUTPUT_OPTION='-o $@' 173fi 174AC_SUBST(NO_MINUS_C_MINUS_O) 175AC_SUBST(OUTPUT_OPTION) 176 177AC_C_CONST 178AC_C_INLINE 179AC_C_BIGENDIAN 180 181dnl When we start using libtool: 182dnl Default to a non shared library. This may be overridden by the 183dnl configure option --enable-shared. 184dnl AM_DISABLE_SHARED 185 186dnl When we start using libtool: 187dnl AM_PROG_LIBTOOL 188 189dnl When we start using automake: 190dnl AM_CONFIG_HEADER(config.h:config.in) 191AC_CONFIG_HEADER(config.h:config.in) 192 193dnl When we start using automake: 194dnl AM_MAINTAINER_MODE 195dnl AC_EXEEXT 196 197dnl When we start using automake: 198dnl AM_PROG_INSTALL 199AC_PROG_INSTALL 200 201# Don't build the shared library for build. 202if [[ -n "${with_build_subdir}" ]]; then 203 enable_shared=no 204fi 205 206frag= 207case "${host}" in 208 rs6000-ibm-aix3.1 | rs6000-ibm-aix) 209 frag=mh-aix ;; 210 *-*-cxux7*) frag=mh-cxux7 ;; 211 *-*-freebsd2.1.*) frag=mh-fbsd21 ;; 212 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;; 213 i370-*-opened*) frag=mh-openedition ;; 214 i[[34567]]86-*-windows*) frag=mh-windows ;; 215esac 216 217if [[ -n "${frag}" ]]; then 218 frag=${libiberty_topdir}/libiberty/config/$frag 219fi 220 221GCC_PICFLAG 222 223# If they didn't specify --enable-shared, don't generate shared libs. 224case "${enable_shared}" in 225 yes) shared=yes ;; 226 no) shared=no ;; 227 "") shared=no ;; 228 *) shared=yes ;; 229esac 230 231# ...unless --enable-host-shared was passed from top-level config: 232if [[ "${enable_host_shared}" = "yes" ]]; then 233 shared=yes 234fi 235 236if [[ "${shared}" != "yes" ]]; then 237 PICFLAG= 238fi 239AC_SUBST(PICFLAG) 240 241NOASANFLAG= 242case " ${CFLAGS} " in 243 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;; 244esac 245AC_SUBST(NOASANFLAG) 246 247echo "# Warning: this fragment is automatically generated" > temp-frag 248 249if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 250 echo "Appending ${frag} to xhost-mkfrag" 251 echo "# Following fragment copied from ${frag}" >> temp-frag 252 cat ${frag} >> temp-frag 253fi 254 255# record if we want to build shared libs. 256if [[ "${shared}" = "yes" ]]; then 257 echo enable_shared = yes >> temp-frag 258else 259 echo enable_shared = no >> temp-frag 260fi 261 262frag=xhost-mkfrag 263${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 264 265host_makefile_frag=${frag} 266AC_SUBST_FILE(host_makefile_frag) 267 268# It's OK to check for header files. Although the compiler may not be 269# able to link anything, it had better be able to at least compile 270# something. 271AC_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) 272AC_HEADER_SYS_WAIT 273AC_HEADER_TIME 274 275libiberty_AC_DECLARE_ERRNO 276 277# Determine sizes of some types. 278AC_CHECK_SIZEOF([int]) 279AC_CHECK_SIZEOF([long]) 280AC_CHECK_SIZEOF([size_t]) 281 282# Check for presense of long long 283AC_CHECK_TYPE([long long], 284 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])], 285 []) 286 287# Look for a 64-bit type. 288AC_MSG_CHECKING([for a 64-bit type]) 289AC_CACHE_VAL(liberty_cv_uint64, 290[AC_TRY_COMPILE( 291[#ifdef HAVE_STDINT_H 292#include <stdint.h> 293#endif], 294[extern uint64_t foo;], 295liberty_cv_uint64=uint64_t, 296[AC_TRY_COMPILE( 297[#ifdef HAVE_LIMITS_H 298#include <limits.h> 299#endif 300#ifndef CHAR_BIT 301#define CHAR_BIT 8 302#endif], 303[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 304liberty_cv_uint64="unsigned long", 305[AC_TRY_COMPILE( 306[#ifdef HAVE_LIMITS_H 307#include <limits.h> 308#endif 309#ifndef CHAR_BIT 310#define CHAR_BIT 8 311#endif], 312[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];], 313liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 314AC_MSG_RESULT($liberty_cv_uint64) 315if test "$liberty_cv_uint64" != none; then 316 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 317 [Define to an unsigned 64-bit type available in the compiler.]) 318fi 319 320AC_TYPE_INTPTR_T 321AC_TYPE_UINTPTR_T 322AC_TYPE_SSIZE_T 323 324# Given the above check, we always have uintptr_t or a fallback 325# definition. So define HAVE_UINTPTR_T in case any imported code 326# relies on it. 327AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 328 329AC_TYPE_PID_T 330 331# This is the list of functions which libiberty will provide if they 332# are not available on the host. 333 334funcs="asprintf" 335funcs="$funcs atexit" 336funcs="$funcs basename" 337funcs="$funcs bcmp" 338funcs="$funcs bcopy" 339funcs="$funcs bsearch" 340funcs="$funcs bzero" 341funcs="$funcs calloc" 342funcs="$funcs clock" 343funcs="$funcs ffs" 344funcs="$funcs getcwd" 345funcs="$funcs getpagesize" 346funcs="$funcs gettimeofday" 347funcs="$funcs index" 348funcs="$funcs insque" 349funcs="$funcs memchr" 350funcs="$funcs memcmp" 351funcs="$funcs memcpy" 352funcs="$funcs memmem" 353funcs="$funcs memmove" 354funcs="$funcs mempcpy" 355funcs="$funcs memset" 356funcs="$funcs mkstemps" 357funcs="$funcs putenv" 358funcs="$funcs random" 359funcs="$funcs rename" 360funcs="$funcs rindex" 361funcs="$funcs setenv" 362funcs="$funcs snprintf" 363funcs="$funcs sigsetmask" 364funcs="$funcs stpcpy" 365funcs="$funcs stpncpy" 366funcs="$funcs strcasecmp" 367funcs="$funcs strchr" 368funcs="$funcs strdup" 369funcs="$funcs strncasecmp" 370funcs="$funcs strndup" 371funcs="$funcs strnlen" 372funcs="$funcs strrchr" 373funcs="$funcs strstr" 374funcs="$funcs strtod" 375funcs="$funcs strtol" 376funcs="$funcs strtoul" 377funcs="$funcs strtoll" 378funcs="$funcs strtoull" 379funcs="$funcs strverscmp" 380funcs="$funcs tmpnam" 381funcs="$funcs vasprintf" 382funcs="$funcs vfprintf" 383funcs="$funcs vprintf" 384funcs="$funcs vsnprintf" 385funcs="$funcs vsprintf" 386funcs="$funcs waitpid" 387funcs="$funcs setproctitle" 388 389# Also in the old function.def file: alloca, vfork, getopt. 390 391vars="sys_errlist sys_nerr sys_siglist" 392 393checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ 394 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \ 395 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \ 396 sysmp table times wait3 wait4" 397 398# These are neither executed nor required, but they help keep 399# autoheader happy without adding a bunch of text to acconfig.h. 400if test "x" = "y"; then 401 AC_CHECK_FUNCS(asprintf atexit \ 402 basename bcmp bcopy bsearch bzero \ 403 calloc canonicalize_file_name clock \ 404 dup3 \ 405 ffs __fsetlocking \ 406 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \ 407 index insque \ 408 memchr memcmp memcpy memmem memmove memset mkstemps \ 409 on_exit \ 410 psignal pstat_getdynamic pstat_getstatic putenv \ 411 random realpath rename rindex \ 412 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \ 413 stpcpy stpncpy strcasecmp strchr strdup \ 414 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \ 415 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \ 416 table times tmpnam \ 417 vasprintf vfprintf vprintf vsprintf \ 418 wait3 wait4 waitpid) 419 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen]) 420 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 421 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 422 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 423fi 424 425# For each of these functions, if the host does not provide the 426# function we want to put FN.o in LIBOBJS, and if the host does 427# provide the function, we want to define HAVE_FN in config.h. 428 429setobjs= 430CHECK= 431if test -n "${with_target_subdir}"; then 432 433 # We are being configured as a target library. AC_REPLACE_FUNCS 434 # may not work correctly, because the compiler may not be able to 435 # link executables. Note that we may still be being configured 436 # native. 437 438 # If we are being configured for newlib, we know which functions 439 # newlib provide and which ones we will be expected to provide. 440 441 if test "x${with_newlib}" = "xyes"; then 442 AC_LIBOBJ([asprintf]) 443 AC_LIBOBJ([basename]) 444 AC_LIBOBJ([insque]) 445 AC_LIBOBJ([random]) 446 AC_LIBOBJ([strdup]) 447 AC_LIBOBJ([vasprintf]) 448 449 for f in $funcs; do 450 case "$f" in 451 asprintf | basename | insque | random | strdup | vasprintf) 452 ;; 453 *) 454 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 455 AC_DEFINE_UNQUOTED($n) 456 ;; 457 esac 458 done 459 460 # newlib doesnt provide any of the variables in $vars, so we 461 # dont have to check them here. 462 463 # Of the functions in $checkfuncs, newlib only has strerror. 464 AC_DEFINE(HAVE_STRERROR) 465 466 setobjs=yes 467 468 fi 469 470 # If we are being configured for Mingw, we know which functions 471 # Mingw provides and which ones we will be expected to provide. 472 473 case "${host}" in 474 *-*-mingw*) 475 AC_LIBOBJ([asprintf]) 476 AC_LIBOBJ([basename]) 477 AC_LIBOBJ([bcmp]) 478 AC_LIBOBJ([bcopy]) 479 AC_LIBOBJ([bzero]) 480 AC_LIBOBJ([clock]) 481 AC_LIBOBJ([ffs]) 482 AC_LIBOBJ([getpagesize]) 483 AC_LIBOBJ([index]) 484 AC_LIBOBJ([insque]) 485 AC_LIBOBJ([mempcpy]) 486 AC_LIBOBJ([mkstemps]) 487 AC_LIBOBJ([random]) 488 AC_LIBOBJ([rindex]) 489 AC_LIBOBJ([sigsetmask]) 490 AC_LIBOBJ([stpcpy]) 491 AC_LIBOBJ([stpncpy]) 492 AC_LIBOBJ([strndup]) 493 AC_LIBOBJ([strnlen]) 494 AC_LIBOBJ([strverscmp]) 495 AC_LIBOBJ([vasprintf]) 496 AC_LIBOBJ([waitpid]) 497 498 for f in $funcs; do 499 case "$f" in 500 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid) 501 ;; 502 *) 503 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 504 AC_DEFINE_UNQUOTED($n) 505 ;; 506 esac 507 done 508 509 # Mingw doesnt provide any of the variables in $vars, so we 510 # dont have to check them here. 511 512 # Of the functions in $checkfuncs, Mingw only has strerror. 513 AC_DEFINE(HAVE_STRERROR) 514 515 setobjs=yes 516 ;; 517 518 *-*-msdosdjgpp) 519 AC_LIBOBJ([vasprintf]) 520 AC_LIBOBJ([vsnprintf]) 521 AC_LIBOBJ([snprintf]) 522 AC_LIBOBJ([asprintf]) 523 524 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 525 getcwd getpagesize getrusage gettimeofday \ 526 index insque memchr memcmp memcpy memmove memset psignal \ 527 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 528 strchr strdup strerror strncasecmp strrchr strstr strtod \ 529 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 530 vsprintf waitpid 531 do 532 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 533 AC_DEFINE_UNQUOTED($n) 534 done 535 536 537 setobjs=yes 538 ;; 539 540 esac 541 542else 543 544 # Not a target library, so we set things up to run the test suite. 545 CHECK=really-check 546 547fi 548 549AC_SUBST(CHECK) 550AC_SUBST(target_header_dir) 551 552case "${host}" in 553 *-*-cygwin* | *-*-mingw*) 554 AC_DEFINE(HAVE_SYS_ERRLIST) 555 AC_DEFINE(HAVE_SYS_NERR) 556 ;; 557esac 558 559if test -z "${setobjs}"; then 560 case "${host}" in 561 562 *-*-vxworks*) 563 # Handle VxWorks configuration specially, since on VxWorks the 564 # libraries are actually on the target board, not in the file 565 # system. 566 AC_LIBOBJ([basename]) 567 AC_LIBOBJ([getpagesize]) 568 AC_LIBOBJ([insque]) 569 AC_LIBOBJ([random]) 570 AC_LIBOBJ([strcasecmp]) 571 AC_LIBOBJ([strncasecmp]) 572 AC_LIBOBJ([strdup]) 573 AC_LIBOBJ([vfork]) 574 AC_LIBOBJ([waitpid]) 575 AC_LIBOBJ([vasprintf]) 576 for f in $funcs; do 577 case "$f" in 578 basename | getpagesize | insque | random | strcasecmp) 579 ;; 580 strncasecmp | strdup | vfork | waitpid | vasprintf) 581 ;; 582 *) 583 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 584 AC_DEFINE_UNQUOTED($n) 585 ;; 586 esac 587 done 588 589 # VxWorks doesn't provide any of the variables in $vars, so we 590 # don't have to check them here. 591 592 # Of the functions in $checkfuncs, VxWorks only has strerror. 593 AC_DEFINE(HAVE_STRERROR) 594 595 setobjs=yes 596 ;; 597 598 esac 599fi 600 601if test -z "${setobjs}"; then 602 603 case "${host}" in 604 605 *-*-android*) 606 # On android, getpagesize is defined in unistd.h as a static inline 607 # function, which AC_CHECK_FUNCS does not handle properly. 608 ac_cv_func_getpagesize=yes 609 ;; 610 611 *-*-mingw32*) 612 # Under mingw32, sys_nerr and sys_errlist exist, but they are 613 # macros, so the test below won't find them. 614 libiberty_cv_var_sys_nerr=yes 615 libiberty_cv_var_sys_errlist=yes 616 ;; 617 618 *-*-msdosdjgpp*) 619 # vfork and fork are stubs. 620 ac_cv_func_vfork_works=no 621 ;; 622 623 *-*-uwin*) 624 # Under some versions of uwin, vfork is notoriously buggy and the test 625 # can hang configure; on other versions, vfork exists just as a stub. 626 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 627 ac_cv_func_vfork_works=no 628 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 629 # macros (actually, these are imported from a DLL, but the end effect 630 # is the same), so the test below won't find them. 631 libiberty_cv_var_sys_nerr=yes 632 libiberty_cv_var_sys_errlist=yes 633 ;; 634 635 *-*-*vms*) 636 # Under VMS, vfork works very different than on Unix. The standard test 637 # won't work, and it isn't easily adaptable. It makes more sense to 638 # just force it. 639 ac_cv_func_vfork_works=yes 640 ;; 641 642 esac 643 644 # We haven't set the list of objects yet. Use the standard autoconf 645 # tests. This will only work if the compiler works. 646 AC_ISC_POSIX 647 AC_REPLACE_FUNCS($funcs) 648 libiberty_AC_FUNC_C_ALLOCA 649 AC_FUNC_FORK 650 if test $ac_cv_func_vfork_works = no; then 651 AC_LIBOBJ([vfork]) 652 fi 653 # We only need _doprnt if we might use it to implement v*printf. 654 if test $ac_cv_func_vprintf != yes \ 655 || test $ac_cv_func_vfprintf != yes \ 656 || test $ac_cv_func_vsprintf != yes; then 657 AC_REPLACE_FUNCS(_doprnt) 658 else 659 AC_CHECK_FUNCS(_doprnt) 660 fi 661 662 for v in $vars; do 663 AC_MSG_CHECKING([for $v]) 664 AC_CACHE_VAL(libiberty_cv_var_$v, 665 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])], 666 [eval "libiberty_cv_var_$v=yes"], 667 [eval "libiberty_cv_var_$v=no"])]) 668 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 669 AC_MSG_RESULT(yes) 670 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 671 AC_DEFINE_UNQUOTED($n) 672 else 673 AC_MSG_RESULT(no) 674 fi 675 done 676 677 # special check for _system_configuration because AIX <4.3.2 do not 678 # contain the `physmem' member. 679 AC_MSG_CHECKING([for external symbol _system_configuration]) 680 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 681 [[double x = _system_configuration.physmem;]])], 682 [AC_MSG_RESULT([yes]) 683 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 684 [Define if you have the _system_configuration variable.])], 685 [AC_MSG_RESULT([no])]) 686 687 AC_CHECK_FUNCS($checkfuncs) 688 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 689 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk]) 690 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull]) 691 AC_CHECK_DECLS([strverscmp]) 692 AC_CHECK_DECLS([strnlen]) 693 libiberty_NEED_DECLARATION(canonicalize_file_name) 694fi 695 696# Figure out which version of pexecute to use. 697case "${host}" in 698 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;; 699 *-*-msdosdjgpp*) pexecute=pex-djgpp ;; 700 *-*-msdos*) pexecute=pex-msdos ;; 701 *) pexecute=pex-unix ;; 702esac 703AC_SUBST(pexecute) 704 705libiberty_AC_FUNC_STRNCMP 706 707# Install a library built with a cross compiler in $(tooldir) rather 708# than $(libdir). 709if test -z "${with_cross_host}"; then 710 INSTALL_DEST=libdir 711else 712 INSTALL_DEST=tooldir 713fi 714AC_SUBST(INSTALL_DEST) 715 716m4_pattern_allow(LIBOBJS) 717L="" 718for l in x $LIBOBJS; do 719 case $l in 720 x) ;; 721 *) L="$L ./$l" ;; 722 esac 723done 724LIBOBJS="$L" 725 726dnl Required by html and install-html 727AC_SUBST(datarootdir) 728AC_SUBST(docdir) 729AC_SUBST(htmldir) 730 731# We need multilib support, but only if configuring for the target. 732AC_CONFIG_FILES([Makefile testsuite/Makefile]) 733AC_CONFIG_COMMANDS([default], 734 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 735if test -n "$CONFIG_FILES"; then 736 if test -n "${with_target_subdir}"; then 737 # FIXME: We shouldn't need to set ac_file 738 ac_file=Makefile 739 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 740 . ${libiberty_topdir}/config-ml.in 741 fi 742fi]], 743[[srcdir=${srcdir} 744host=${host} 745target=${target} 746with_target_subdir=${with_target_subdir} 747with_multisubdir=${with_multisubdir} 748ac_configure_args="--enable-multilib ${ac_configure_args}" 749CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 750ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 751libiberty_topdir=${libiberty_topdir} 752]]) 753AC_OUTPUT 754