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