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 " ${CFLAGS} " in 242 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;; 243esac 244AC_SUBST(NOASANFLAG) 245 246GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) 247AC_SUBST(CET_HOST_FLAGS) 248 249echo "# Warning: this fragment is automatically generated" > temp-frag 250 251if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 252 echo "Appending ${frag} to xhost-mkfrag" 253 echo "# Following fragment copied from ${frag}" >> temp-frag 254 cat ${frag} >> temp-frag 255fi 256 257# record if we want to build shared libs. 258if [[ "${shared}" = "yes" ]]; then 259 echo enable_shared = yes >> temp-frag 260else 261 echo enable_shared = no >> temp-frag 262fi 263 264frag=xhost-mkfrag 265${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 266 267host_makefile_frag=${frag} 268AC_SUBST_FILE(host_makefile_frag) 269 270# It's OK to check for header files. Although the compiler may not be 271# able to link anything, it had better be able to at least compile 272# something. 273AC_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) 274AC_HEADER_SYS_WAIT 275AC_HEADER_TIME 276 277libiberty_AC_DECLARE_ERRNO 278 279# Determine sizes of some types. 280AC_CHECK_SIZEOF([int]) 281AC_CHECK_SIZEOF([long]) 282AC_CHECK_SIZEOF([size_t]) 283 284# Check for presense of long long 285AC_CHECK_TYPE([long long], 286 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])], 287 []) 288 289# Look for a 64-bit type. 290AC_MSG_CHECKING([for a 64-bit type]) 291AC_CACHE_VAL(liberty_cv_uint64, 292[AC_TRY_COMPILE( 293[#ifdef HAVE_STDINT_H 294#include <stdint.h> 295#endif], 296[extern uint64_t foo;], 297liberty_cv_uint64=uint64_t, 298[AC_TRY_COMPILE( 299[#ifdef HAVE_LIMITS_H 300#include <limits.h> 301#endif 302#ifndef CHAR_BIT 303#define CHAR_BIT 8 304#endif], 305[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 306liberty_cv_uint64="unsigned long", 307[AC_TRY_COMPILE( 308[#ifdef HAVE_LIMITS_H 309#include <limits.h> 310#endif 311#ifndef CHAR_BIT 312#define CHAR_BIT 8 313#endif], 314[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];], 315liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 316AC_MSG_RESULT($liberty_cv_uint64) 317if test "$liberty_cv_uint64" != none; then 318 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 319 [Define to an unsigned 64-bit type available in the compiler.]) 320fi 321 322AC_TYPE_INTPTR_T 323AC_TYPE_UINTPTR_T 324AC_TYPE_SSIZE_T 325 326# Given the above check, we always have uintptr_t or a fallback 327# definition. So define HAVE_UINTPTR_T in case any imported code 328# relies on it. 329AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 330 331AC_TYPE_PID_T 332 333# This is the list of functions which libiberty will provide if they 334# are not available on the host. 335 336funcs="asprintf" 337funcs="$funcs atexit" 338funcs="$funcs basename" 339funcs="$funcs bcmp" 340funcs="$funcs bcopy" 341funcs="$funcs bsearch" 342funcs="$funcs bzero" 343funcs="$funcs calloc" 344funcs="$funcs clock" 345funcs="$funcs ffs" 346funcs="$funcs getcwd" 347funcs="$funcs getpagesize" 348funcs="$funcs gettimeofday" 349funcs="$funcs index" 350funcs="$funcs insque" 351funcs="$funcs memchr" 352funcs="$funcs memcmp" 353funcs="$funcs memcpy" 354funcs="$funcs memmem" 355funcs="$funcs memmove" 356funcs="$funcs mempcpy" 357funcs="$funcs memset" 358funcs="$funcs mkstemps" 359funcs="$funcs putenv" 360funcs="$funcs random" 361funcs="$funcs rename" 362funcs="$funcs rindex" 363funcs="$funcs setenv" 364funcs="$funcs snprintf" 365funcs="$funcs sigsetmask" 366funcs="$funcs stpcpy" 367funcs="$funcs stpncpy" 368funcs="$funcs strcasecmp" 369funcs="$funcs strchr" 370funcs="$funcs strdup" 371funcs="$funcs strncasecmp" 372funcs="$funcs strndup" 373funcs="$funcs strnlen" 374funcs="$funcs strrchr" 375funcs="$funcs strstr" 376funcs="$funcs strtod" 377funcs="$funcs strtol" 378funcs="$funcs strtoul" 379funcs="$funcs strtoll" 380funcs="$funcs strtoull" 381funcs="$funcs strverscmp" 382funcs="$funcs tmpnam" 383funcs="$funcs vasprintf" 384funcs="$funcs vfprintf" 385funcs="$funcs vprintf" 386funcs="$funcs vsnprintf" 387funcs="$funcs vsprintf" 388funcs="$funcs waitpid" 389funcs="$funcs setproctitle" 390 391# Also in the old function.def file: alloca, vfork, getopt. 392 393vars="sys_errlist sys_nerr sys_siglist" 394 395checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ 396 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \ 397 realpath setrlimit spawnve spawnvpe strerror strsignal sysconf sysctl \ 398 sysmp table times wait3 wait4" 399 400# Darwin has sbrk, but it is deprecated and that produces build-time warnings 401# so do not check for it. 402case "${host}" in 403 *-*-darwin*) ;; 404 *) checkfuncs="$checkfuncs sbrk" 405esac 406 407# These are neither executed nor required, but they help keep 408# autoheader happy without adding a bunch of text to acconfig.h. 409if test "x" = "y"; then 410 AC_CHECK_FUNCS(asprintf atexit \ 411 basename bcmp bcopy bsearch bzero \ 412 calloc canonicalize_file_name clock \ 413 dup3 \ 414 ffs __fsetlocking \ 415 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \ 416 index insque \ 417 memchr memcmp memcpy memmem memmove memset mkstemps \ 418 on_exit \ 419 pipe2 psignal pstat_getdynamic pstat_getstatic putenv \ 420 random realpath rename rindex \ 421 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \ 422 stpcpy stpncpy strcasecmp strchr strdup \ 423 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \ 424 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \ 425 table times tmpnam \ 426 vasprintf vfprintf vprintf vsprintf \ 427 wait3 wait4 waitpid) 428 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen]) 429 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 430 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 431 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 432fi 433 434# For each of these functions, if the host does not provide the 435# function we want to put FN.o in LIBOBJS, and if the host does 436# provide the function, we want to define HAVE_FN in config.h. 437 438setobjs= 439CHECK= 440if test -n "${with_target_subdir}"; then 441 442 # We are being configured as a target library. AC_REPLACE_FUNCS 443 # may not work correctly, because the compiler may not be able to 444 # link executables. Note that we may still be being configured 445 # native. 446 447 # If we are being configured for newlib, we know which functions 448 # newlib provide and which ones we will be expected to provide. 449 450 if test "x${with_newlib}" = "xyes"; then 451 AC_LIBOBJ([asprintf]) 452 AC_LIBOBJ([basename]) 453 AC_LIBOBJ([insque]) 454 AC_LIBOBJ([random]) 455 AC_LIBOBJ([strdup]) 456 AC_LIBOBJ([vasprintf]) 457 458 for f in $funcs; do 459 case "$f" in 460 asprintf | basename | insque | random | strdup | vasprintf) 461 ;; 462 *) 463 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 464 AC_DEFINE_UNQUOTED($n) 465 ;; 466 esac 467 done 468 469 # newlib doesnt provide any of the variables in $vars, so we 470 # dont have to check them here. 471 472 # Of the functions in $checkfuncs, newlib only has strerror. 473 AC_DEFINE(HAVE_STRERROR) 474 475 setobjs=yes 476 477 fi 478 479 # If we are being configured for Mingw, we know which functions 480 # Mingw provides and which ones we will be expected to provide. 481 482 case "${host}" in 483 *-*-mingw*) 484 AC_LIBOBJ([asprintf]) 485 AC_LIBOBJ([basename]) 486 AC_LIBOBJ([bcmp]) 487 AC_LIBOBJ([bcopy]) 488 AC_LIBOBJ([bzero]) 489 AC_LIBOBJ([clock]) 490 AC_LIBOBJ([ffs]) 491 AC_LIBOBJ([getpagesize]) 492 AC_LIBOBJ([index]) 493 AC_LIBOBJ([insque]) 494 AC_LIBOBJ([mempcpy]) 495 AC_LIBOBJ([mkstemps]) 496 AC_LIBOBJ([random]) 497 AC_LIBOBJ([rindex]) 498 AC_LIBOBJ([sigsetmask]) 499 AC_LIBOBJ([stpcpy]) 500 AC_LIBOBJ([stpncpy]) 501 AC_LIBOBJ([strndup]) 502 AC_LIBOBJ([strnlen]) 503 AC_LIBOBJ([strverscmp]) 504 AC_LIBOBJ([vasprintf]) 505 AC_LIBOBJ([waitpid]) 506 507 for f in $funcs; do 508 case "$f" in 509 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid) 510 ;; 511 *) 512 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 513 AC_DEFINE_UNQUOTED($n) 514 ;; 515 esac 516 done 517 518 # Mingw doesnt provide any of the variables in $vars, so we 519 # dont have to check them here. 520 521 # Of the functions in $checkfuncs, Mingw only has strerror. 522 AC_DEFINE(HAVE_STRERROR) 523 524 setobjs=yes 525 ;; 526 527 *-*-msdosdjgpp) 528 AC_LIBOBJ([vasprintf]) 529 AC_LIBOBJ([vsnprintf]) 530 AC_LIBOBJ([snprintf]) 531 AC_LIBOBJ([asprintf]) 532 533 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 534 getcwd getpagesize getrusage gettimeofday \ 535 index insque memchr memcmp memcpy memmove memset psignal \ 536 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 537 strchr strdup strerror strncasecmp strrchr strstr strtod \ 538 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 539 vsprintf waitpid 540 do 541 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 542 AC_DEFINE_UNQUOTED($n) 543 done 544 545 546 setobjs=yes 547 ;; 548 549 esac 550 551else 552 553 # Not a target library, so we set things up to run the test suite. 554 CHECK=really-check 555 556fi 557 558AC_SUBST(CHECK) 559AC_SUBST(target_header_dir) 560 561case "${host}" in 562 *-*-cygwin* | *-*-mingw*) 563 AC_DEFINE(HAVE_SYS_ERRLIST) 564 AC_DEFINE(HAVE_SYS_NERR) 565 ;; 566esac 567 568if test -z "${setobjs}"; then 569 case "${host}" in 570 571 *-*-vxworks*) 572 # Handle VxWorks configuration specially, since on VxWorks the 573 # libraries are actually on the target board, not in the file 574 # system. 575 AC_LIBOBJ([basename]) 576 AC_LIBOBJ([getpagesize]) 577 AC_LIBOBJ([insque]) 578 AC_LIBOBJ([random]) 579 AC_LIBOBJ([strcasecmp]) 580 AC_LIBOBJ([strncasecmp]) 581 AC_LIBOBJ([strdup]) 582 AC_LIBOBJ([vfork]) 583 AC_LIBOBJ([waitpid]) 584 AC_LIBOBJ([vasprintf]) 585 for f in $funcs; do 586 case "$f" in 587 basename | getpagesize | insque | random | strcasecmp) 588 ;; 589 strncasecmp | strdup | vfork | waitpid | vasprintf) 590 ;; 591 *) 592 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 593 AC_DEFINE_UNQUOTED($n) 594 ;; 595 esac 596 done 597 598 # VxWorks doesn't provide any of the variables in $vars, so we 599 # don't have to check them here. 600 601 # Of the functions in $checkfuncs, VxWorks only has strerror. 602 AC_DEFINE(HAVE_STRERROR) 603 604 setobjs=yes 605 ;; 606 607 esac 608fi 609 610if test -z "${setobjs}"; then 611 612 case "${host}" in 613 614 *-*-android*) 615 # On android, getpagesize is defined in unistd.h as a static inline 616 # function, which AC_CHECK_FUNCS does not handle properly. 617 ac_cv_func_getpagesize=yes 618 ;; 619 620 *-*-mingw32*) 621 # Under mingw32, sys_nerr and sys_errlist exist, but they are 622 # macros, so the test below won't find them. 623 libiberty_cv_var_sys_nerr=yes 624 libiberty_cv_var_sys_errlist=yes 625 ;; 626 627 *-*-msdosdjgpp*) 628 # vfork and fork are stubs. 629 ac_cv_func_vfork_works=no 630 ;; 631 632 *-*-uwin*) 633 # Under some versions of uwin, vfork is notoriously buggy and the test 634 # can hang configure; on other versions, vfork exists just as a stub. 635 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 636 ac_cv_func_vfork_works=no 637 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 638 # macros (actually, these are imported from a DLL, but the end effect 639 # is the same), so the test below won't find them. 640 libiberty_cv_var_sys_nerr=yes 641 libiberty_cv_var_sys_errlist=yes 642 ;; 643 644 *-*-*vms*) 645 # Under VMS, vfork works very different than on Unix. The standard test 646 # won't work, and it isn't easily adaptable. It makes more sense to 647 # just force it. 648 ac_cv_func_vfork_works=yes 649 ;; 650 651 esac 652 653 # We haven't set the list of objects yet. Use the standard autoconf 654 # tests. This will only work if the compiler works. 655 AC_ISC_POSIX 656 AC_REPLACE_FUNCS($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($checkfuncs) 697 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 698 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc]) 699 case "${host}" in 700 *-*-darwin*) ;; # Darwin's sbrk implementation is deprecated. 701 *) AC_CHECK_DECLS([sbrk]);; 702 esac 703 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull]) 704 AC_CHECK_DECLS([strverscmp]) 705 AC_CHECK_DECLS([strnlen]) 706 libiberty_NEED_DECLARATION(canonicalize_file_name) 707fi 708 709# Figure out which version of pexecute to use. 710case "${host}" in 711 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;; 712 *-*-msdosdjgpp*) pexecute=pex-djgpp ;; 713 *-*-msdos*) pexecute=pex-msdos ;; 714 *) pexecute=pex-unix ;; 715esac 716AC_SUBST(pexecute) 717 718libiberty_AC_FUNC_STRNCMP 719 720# Install a library built with a cross compiler in $(tooldir) rather 721# than $(libdir). 722if test -z "${with_cross_host}"; then 723 INSTALL_DEST=libdir 724else 725 INSTALL_DEST=tooldir 726fi 727AC_SUBST(INSTALL_DEST) 728 729m4_pattern_allow(LIBOBJS) 730L="" 731for l in x $LIBOBJS; do 732 case $l in 733 x) ;; 734 *) L="$L ./$l" ;; 735 esac 736done 737LIBOBJS="$L" 738 739dnl Required by html and install-html 740AC_SUBST(datarootdir) 741AC_SUBST(docdir) 742AC_SUBST(htmldir) 743 744# We need multilib support, but only if configuring for the target. 745AC_CONFIG_FILES([Makefile]) 746AC_CONFIG_COMMANDS([default], 747 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 748if test -n "$CONFIG_FILES"; then 749 if test -n "${with_target_subdir}"; then 750 # FIXME: We shouldn't need to set ac_file 751 ac_file=Makefile 752 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 753 . ${libiberty_topdir}/config-ml.in 754 fi 755fi]], 756[[srcdir=${srcdir} 757host=${host} 758target=${target} 759with_target_subdir=${with_target_subdir} 760with_multisubdir=${with_multisubdir} 761ac_configure_args="--enable-multilib ${ac_configure_args}" 762CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 763ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 764libiberty_topdir=${libiberty_topdir} 765]]) 766AC_OUTPUT 767