configure.ac revision 1.12
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 64if test -z "$ETAGS"; then 65 ETAGS=etags 66fi 67AC_SUBST([ETAGS]) 68 69# Do we have a single-tree copy of texinfo? Even if we do, we can't 70# rely on it - libiberty is built before texinfo. 71AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, ) 72if test "x$MAKEINFO" = "x"; then 73 MAKEINFO="@echo makeinfo missing; true" 74 BUILD_INFO= 75else 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 $MAKEINFO is too old, 4.0 or newer required; true" 87 BUILD_INFO= 88 AC_MSG_WARN([ 89*** Makeinfo is too old. Info documentation will not be built.]) 90 ;; 91 esac 92 ;; 93 esac 94fi 95AC_SUBST(MAKEINFO) 96AC_SUBST(BUILD_INFO) 97 98AC_CHECK_PROG(PERL, perl, perl, ) 99if test x"$PERL" = x""; then 100 HAVE_PERL='#' 101else 102 HAVE_PERL='' 103fi 104AC_SUBST(HAVE_PERL) 105 106AC_CANONICAL_HOST 107 108dnl When we start using automake: 109dnl AM_INIT_AUTOMAKE(libiberty, 1.0) 110 111dnl These must be called before AM_PROG_LIBTOOL, because it may want 112dnl to call AC_CHECK_PROG. 113AC_CHECK_TOOL(AR, ar) 114AC_CHECK_TOOL(RANLIB, ranlib, :) 115 116dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB. 117# Add --enable-multilib to configure. 118# Default to --enable-multilib 119AC_ARG_ENABLE(multilib, 120[ --enable-multilib build many library versions (default)], 121[case "$enableval" in 122 yes) multilib=yes ;; 123 no) multilib=no ;; 124 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;; 125 esac], 126 [multilib=yes]) 127 128# Even if the default multilib is not a cross compilation, 129# it may be that some of the other multilibs are. 130if test $cross_compiling = no && test $multilib = yes \ 131 && test "x${with_multisubdir}" != x ; then 132 cross_compiling=maybe 133fi 134 135# We may wish to install the target headers somewhere. 136AC_MSG_CHECKING([whether to install libiberty headers and static library]) 137dnl install-libiberty is disabled by default 138 139AC_ARG_ENABLE(install-libiberty, 140[ --enable-install-libiberty Install headers and library for end users], 141enable_install_libiberty=$enableval, 142enable_install_libiberty=no)dnl 143 144# Option parsed, now set things appropriately. 145case x"$enable_install_libiberty" in 146 xyes|x) 147 target_header_dir=libiberty 148 ;; 149 xno) 150 target_header_dir= 151 ;; 152 *) 153 # This could be sanity-checked in various ways... 154 target_header_dir="${enable_install_libiberty}" 155 ;; 156esac 157AC_MSG_RESULT($enable_install_libiberty) 158AC_MSG_NOTICE([target_header_dir = $target_header_dir]) 159 160GCC_NO_EXECUTABLES 161AC_PROG_CC 162AC_GNU_SOURCE 163AC_SYS_LARGEFILE 164AC_PROG_CPP_WERROR 165 166ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \ 167 -Wstrict-prototypes \ 168 -Wshadow=local], [ac_libiberty_warn_cflags]) 169ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags]) 170 171AC_PROG_CC_C_O 172# autoconf is lame and doesn't give us any substitution variable for this. 173if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then 174 NO_MINUS_C_MINUS_O=yes 175else 176 OUTPUT_OPTION='-o $@' 177fi 178AC_SUBST(NO_MINUS_C_MINUS_O) 179AC_SUBST(OUTPUT_OPTION) 180 181AC_C_CONST 182AC_C_INLINE 183AC_C_BIGENDIAN 184 185dnl When we start using libtool: 186dnl Default to a non shared library. This may be overridden by the 187dnl configure option --enable-shared. 188dnl AM_DISABLE_SHARED 189 190dnl When we start using libtool: 191dnl AM_PROG_LIBTOOL 192 193dnl When we start using automake: 194dnl AM_CONFIG_HEADER(config.h:config.in) 195AC_CONFIG_HEADER(config.h:config.in) 196 197dnl When we start using automake: 198dnl AM_MAINTAINER_MODE 199dnl AC_EXEEXT 200 201dnl When we start using automake: 202dnl AM_PROG_INSTALL 203AC_PROG_INSTALL 204 205# Don't build the shared library for build. 206if [[ -n "${with_build_subdir}" ]]; then 207 enable_shared=no 208fi 209 210frag= 211case "${host}" in 212 rs6000-ibm-aix3.1 | rs6000-ibm-aix) 213 frag=mh-aix ;; 214 *-*-cxux7*) frag=mh-cxux7 ;; 215 *-*-freebsd2.1.*) frag=mh-fbsd21 ;; 216 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;; 217 i370-*-opened*) frag=mh-openedition ;; 218 i[[34567]]86-*-windows*) frag=mh-windows ;; 219esac 220 221if [[ -n "${frag}" ]]; then 222 frag=${libiberty_topdir}/libiberty/config/$frag 223fi 224 225GCC_PICFLAG 226 227# If they didn't specify --enable-shared, don't generate shared libs. 228case "${enable_shared}" in 229 yes) shared=yes ;; 230 no) shared=no ;; 231 "") shared=no ;; 232 *) shared=yes ;; 233esac 234 235# ...unless --enable-host-shared was passed from top-level config: 236if [[ "${enable_host_shared}" = "yes" ]]; then 237 shared=yes 238fi 239 240if [[ "${shared}" != "yes" ]]; then 241 PICFLAG= 242fi 243AC_SUBST(PICFLAG) 244 245NOASANFLAG= 246case " ${CFLAGS} " in 247 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;; 248 *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;; 249esac 250AC_SUBST(NOASANFLAG) 251 252GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) 253AC_SUBST(CET_HOST_FLAGS) 254 255echo "# Warning: this fragment is automatically generated" > temp-frag 256 257if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 258 echo "Appending ${frag} to xhost-mkfrag" 259 echo "# Following fragment copied from ${frag}" >> temp-frag 260 cat ${frag} >> temp-frag 261fi 262 263# record if we want to build shared libs. 264if [[ "${shared}" = "yes" ]]; then 265 echo enable_shared = yes >> temp-frag 266else 267 echo enable_shared = no >> temp-frag 268fi 269 270frag=xhost-mkfrag 271${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 272 273host_makefile_frag=${frag} 274AC_SUBST_FILE(host_makefile_frag) 275 276# It's OK to check for header files. Although the compiler may not be 277# able to link anything, it had better be able to at least compile 278# something. 279AC_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) 280AC_HEADER_SYS_WAIT 281AC_HEADER_TIME 282 283libiberty_AC_DECLARE_ERRNO 284 285# Determine sizes of some types. 286AC_CHECK_SIZEOF([int]) 287AC_CHECK_SIZEOF([long]) 288AC_CHECK_SIZEOF([size_t]) 289 290# Check for presense of long long 291AC_CHECK_TYPE([long long], 292 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])], 293 []) 294 295# Look for a 64-bit type. 296AC_MSG_CHECKING([for a 64-bit type]) 297AC_CACHE_VAL(liberty_cv_uint64, 298[AC_TRY_COMPILE( 299[#ifdef HAVE_STDINT_H 300#include <stdint.h> 301#endif], 302[extern uint64_t foo;], 303liberty_cv_uint64=uint64_t, 304[AC_TRY_COMPILE( 305[#ifdef HAVE_LIMITS_H 306#include <limits.h> 307#endif 308#ifndef CHAR_BIT 309#define CHAR_BIT 8 310#endif], 311[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 312liberty_cv_uint64="unsigned long", 313[AC_TRY_COMPILE( 314[#ifdef HAVE_LIMITS_H 315#include <limits.h> 316#endif 317#ifndef CHAR_BIT 318#define CHAR_BIT 8 319#endif], 320[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];], 321liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 322AC_MSG_RESULT($liberty_cv_uint64) 323if test "$liberty_cv_uint64" != none; then 324 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 325 [Define to an unsigned 64-bit type available in the compiler.]) 326fi 327 328AC_TYPE_INTPTR_T 329AC_TYPE_UINTPTR_T 330AC_TYPE_SSIZE_T 331 332# Given the above check, we always have uintptr_t or a fallback 333# definition. So define HAVE_UINTPTR_T in case any imported code 334# relies on it. 335AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 336 337AC_TYPE_PID_T 338 339# This is the list of functions which libiberty will provide if they 340# are not available on the host. 341 342funcs="asprintf" 343funcs="$funcs atexit" 344funcs="$funcs basename" 345funcs="$funcs bcmp" 346funcs="$funcs bcopy" 347funcs="$funcs bsearch" 348funcs="$funcs bzero" 349funcs="$funcs calloc" 350funcs="$funcs clock" 351funcs="$funcs ffs" 352funcs="$funcs getcwd" 353funcs="$funcs getpagesize" 354funcs="$funcs gettimeofday" 355funcs="$funcs index" 356funcs="$funcs insque" 357funcs="$funcs memchr" 358funcs="$funcs memcmp" 359funcs="$funcs memcpy" 360funcs="$funcs memmem" 361funcs="$funcs memmove" 362funcs="$funcs mempcpy" 363funcs="$funcs memset" 364funcs="$funcs mkstemps" 365funcs="$funcs putenv" 366funcs="$funcs random" 367funcs="$funcs rename" 368funcs="$funcs rindex" 369funcs="$funcs setenv" 370funcs="$funcs snprintf" 371funcs="$funcs sigsetmask" 372funcs="$funcs stpcpy" 373funcs="$funcs stpncpy" 374funcs="$funcs strcasecmp" 375funcs="$funcs strchr" 376funcs="$funcs strdup" 377funcs="$funcs strncasecmp" 378funcs="$funcs strndup" 379funcs="$funcs strnlen" 380funcs="$funcs strrchr" 381funcs="$funcs strstr" 382funcs="$funcs strtod" 383funcs="$funcs strtol" 384funcs="$funcs strtoul" 385funcs="$funcs strtoll" 386funcs="$funcs strtoull" 387funcs="$funcs strverscmp" 388funcs="$funcs tmpnam" 389funcs="$funcs vasprintf" 390funcs="$funcs vfprintf" 391funcs="$funcs vprintf" 392funcs="$funcs vsnprintf" 393funcs="$funcs vsprintf" 394funcs="$funcs waitpid" 395funcs="$funcs setproctitle" 396 397# Also in the old function.def file: alloca, vfork, getopt. 398 399vars="sys_errlist sys_nerr sys_siglist" 400 401checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ 402 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \ 403 realpath setrlimit spawnve spawnvpe strerror strsignal sysconf sysctl \ 404 sysmp table times wait3 wait4" 405 406#��Darwin has sbrk, but it is deprecated and that produces build-time warnings 407#��so do not check for it. 408case "${host}" in 409 *-*-darwin*) ;; 410 *) checkfuncs="$checkfuncs sbrk" 411esac 412 413# These are neither executed nor required, but they help keep 414# autoheader happy without adding a bunch of text to acconfig.h. 415if test "x" = "y"; then 416 AC_CHECK_FUNCS(asprintf atexit \ 417 basename bcmp bcopy bsearch bzero \ 418 calloc canonicalize_file_name clock \ 419 dup3 \ 420 ffs __fsetlocking \ 421 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \ 422 index insque \ 423 memchr memcmp memcpy memmem memmove memset mkstemps \ 424 on_exit \ 425 pipe2 psignal pstat_getdynamic pstat_getstatic putenv \ 426 random realpath rename rindex \ 427 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \ 428 stpcpy stpncpy strcasecmp strchr strdup \ 429 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \ 430 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \ 431 table times tmpnam \ 432 vasprintf vfprintf vprintf vsprintf \ 433 wait3 wait4 waitpid) 434 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen]) 435 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 436 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 437 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 438fi 439 440# For each of these functions, if the host does not provide the 441# function we want to put FN.o in LIBOBJS, and if the host does 442# provide the function, we want to define HAVE_FN in config.h. 443 444setobjs= 445CHECK= 446if test -n "${with_target_subdir}"; then 447 448 # We are being configured as a target library. AC_REPLACE_FUNCS 449 # may not work correctly, because the compiler may not be able to 450 # link executables. Note that we may still be being configured 451 # native. 452 453 # If we are being configured for newlib, we know which functions 454 # newlib provide and which ones we will be expected to provide. 455 456 if test "x${with_newlib}" = "xyes"; then 457 AC_LIBOBJ([asprintf]) 458 AC_LIBOBJ([basename]) 459 AC_LIBOBJ([insque]) 460 AC_LIBOBJ([random]) 461 AC_LIBOBJ([strdup]) 462 AC_LIBOBJ([vasprintf]) 463 464 for f in $funcs; do 465 case "$f" in 466 asprintf | basename | insque | random | strdup | vasprintf) 467 ;; 468 *) 469 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 470 AC_DEFINE_UNQUOTED($n) 471 ;; 472 esac 473 done 474 475 # newlib doesnt provide any of the variables in $vars, so we 476 # dont have to check them here. 477 478 # Of the functions in $checkfuncs, newlib only has strerror. 479 AC_DEFINE(HAVE_STRERROR) 480 481 setobjs=yes 482 483 fi 484 485 # If we are being configured for Mingw, we know which functions 486 # Mingw provides and which ones we will be expected to provide. 487 488 case "${host}" in 489 *-*-mingw*) 490 AC_LIBOBJ([asprintf]) 491 AC_LIBOBJ([basename]) 492 AC_LIBOBJ([bcmp]) 493 AC_LIBOBJ([bcopy]) 494 AC_LIBOBJ([bzero]) 495 AC_LIBOBJ([clock]) 496 AC_LIBOBJ([ffs]) 497 AC_LIBOBJ([getpagesize]) 498 AC_LIBOBJ([index]) 499 AC_LIBOBJ([insque]) 500 AC_LIBOBJ([mempcpy]) 501 AC_LIBOBJ([mkstemps]) 502 AC_LIBOBJ([random]) 503 AC_LIBOBJ([rindex]) 504 AC_LIBOBJ([sigsetmask]) 505 AC_LIBOBJ([stpcpy]) 506 AC_LIBOBJ([stpncpy]) 507 AC_LIBOBJ([strndup]) 508 AC_LIBOBJ([strnlen]) 509 AC_LIBOBJ([strverscmp]) 510 AC_LIBOBJ([vasprintf]) 511 AC_LIBOBJ([waitpid]) 512 513 for f in $funcs; do 514 case "$f" in 515 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid) 516 ;; 517 *) 518 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 519 AC_DEFINE_UNQUOTED($n) 520 ;; 521 esac 522 done 523 524 # Mingw doesnt provide any of the variables in $vars, so we 525 # dont have to check them here. 526 527 # Of the functions in $checkfuncs, Mingw only has strerror. 528 AC_DEFINE(HAVE_STRERROR) 529 530 setobjs=yes 531 ;; 532 533 *-*-msdosdjgpp) 534 AC_LIBOBJ([vasprintf]) 535 AC_LIBOBJ([vsnprintf]) 536 AC_LIBOBJ([snprintf]) 537 AC_LIBOBJ([asprintf]) 538 539 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 540 getcwd getpagesize getrusage gettimeofday \ 541 index insque memchr memcmp memcpy memmove memset psignal \ 542 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 543 strchr strdup strerror strncasecmp strrchr strstr strtod \ 544 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 545 vsprintf waitpid 546 do 547 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 548 AC_DEFINE_UNQUOTED($n) 549 done 550 551 552 setobjs=yes 553 ;; 554 555 esac 556 557else 558 559 # Not a target library, so we set things up to run the test suite. 560 CHECK=really-check 561 562fi 563 564AC_SUBST(CHECK) 565AC_SUBST(target_header_dir) 566 567case "${host}" in 568 *-*-cygwin* | *-*-mingw*) 569 AC_DEFINE(HAVE_SYS_ERRLIST) 570 AC_DEFINE(HAVE_SYS_NERR) 571 ;; 572esac 573 574if test -z "${setobjs}"; then 575 case "${host}" in 576 577 *-*-vxworks*) 578 # Handle VxWorks configuration specially, since on VxWorks the 579 # libraries are actually on the target board, not in the file 580 # system. 581 AC_LIBOBJ([basename]) 582 AC_LIBOBJ([getpagesize]) 583 AC_LIBOBJ([insque]) 584 AC_LIBOBJ([random]) 585 AC_LIBOBJ([strcasecmp]) 586 AC_LIBOBJ([strncasecmp]) 587 AC_LIBOBJ([strdup]) 588 AC_LIBOBJ([vfork]) 589 AC_LIBOBJ([waitpid]) 590 AC_LIBOBJ([vasprintf]) 591 for f in $funcs; do 592 case "$f" in 593 basename | getpagesize | insque | random | strcasecmp) 594 ;; 595 strncasecmp | strdup | vfork | waitpid | vasprintf) 596 ;; 597 *) 598 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 599 AC_DEFINE_UNQUOTED($n) 600 ;; 601 esac 602 done 603 604 # VxWorks doesn't provide any of the variables in $vars, so we 605 # don't have to check them here. 606 607 # Of the functions in $checkfuncs, VxWorks only has strerror. 608 AC_DEFINE(HAVE_STRERROR) 609 610 setobjs=yes 611 ;; 612 613 esac 614fi 615 616if test -z "${setobjs}"; then 617 618 case "${host}" in 619 620 *-*-android*) 621 # On android, getpagesize is defined in unistd.h as a static inline 622 # function, which AC_CHECK_FUNCS does not handle properly. 623 ac_cv_func_getpagesize=yes 624 ;; 625 626 hppa*-*-hpux*) 627 # Replace system snprintf and vsnprintf with libiberty implementations. 628 AC_LIBOBJ([snprintf]) 629 AC_LIBOBJ([vsnprintf]) 630 ;; 631 632 *-*-mingw32*) 633 # Under mingw32, sys_nerr and sys_errlist exist, but they are 634 # macros, so the test below won't find them. 635 libiberty_cv_var_sys_nerr=yes 636 libiberty_cv_var_sys_errlist=yes 637 ;; 638 639 *-*-msdosdjgpp*) 640 # vfork and fork are stubs. 641 ac_cv_func_vfork_works=no 642 ;; 643 644 *-*-uwin*) 645 # Under some versions of uwin, vfork is notoriously buggy and the test 646 # can hang configure; on other versions, vfork exists just as a stub. 647 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 648 ac_cv_func_vfork_works=no 649 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 650 # macros (actually, these are imported from a DLL, but the end effect 651 # is the same), so the test below won't find them. 652 libiberty_cv_var_sys_nerr=yes 653 libiberty_cv_var_sys_errlist=yes 654 ;; 655 656 *-*-*vms*) 657 # Under VMS, vfork works very different than on Unix. The standard test 658 # won't work, and it isn't easily adaptable. It makes more sense to 659 # just force it. 660 ac_cv_func_vfork_works=yes 661 ;; 662 663 esac 664 665 # We haven't set the list of objects yet. Use the standard autoconf 666 # tests. This will only work if the compiler works. 667 AC_ISC_POSIX 668 AC_REPLACE_FUNCS($funcs) 669 libiberty_AC_FUNC_C_ALLOCA 670 AC_FUNC_FORK 671 if test $ac_cv_func_vfork_works = no; then 672 AC_LIBOBJ([vfork]) 673 fi 674 # We only need _doprnt if we might use it to implement v*printf. 675 if test $ac_cv_func_vprintf != yes \ 676 || test $ac_cv_func_vfprintf != yes \ 677 || test $ac_cv_func_vsprintf != yes; then 678 AC_REPLACE_FUNCS(_doprnt) 679 else 680 AC_CHECK_FUNCS(_doprnt) 681 fi 682 683 for v in $vars; do 684 AC_MSG_CHECKING([for $v]) 685 AC_CACHE_VAL(libiberty_cv_var_$v, 686 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern int $v [];]],[[if ($v [0]) return 1;]])], 687 [eval "libiberty_cv_var_$v=yes"], 688 [eval "libiberty_cv_var_$v=no"])]) 689 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 690 AC_MSG_RESULT(yes) 691 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 692 AC_DEFINE_UNQUOTED($n) 693 else 694 AC_MSG_RESULT(no) 695 fi 696 done 697 698 # special check for _system_configuration because AIX <4.3.2 do not 699 # contain the `physmem' member. 700 AC_MSG_CHECKING([for external symbol _system_configuration]) 701 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 702 [[double x = _system_configuration.physmem;]])], 703 [AC_MSG_RESULT([yes]) 704 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 705 [Define if you have the _system_configuration variable.])], 706 [AC_MSG_RESULT([no])]) 707 708 AC_CHECK_FUNCS($checkfuncs) 709 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 710 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc]) 711 case "${host}" in 712 *-*-darwin*) ;; # Darwin's sbrk implementation is deprecated. 713 *) AC_CHECK_DECLS([sbrk]);; 714 esac 715 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull]) 716 AC_CHECK_DECLS([strverscmp]) 717 AC_CHECK_DECLS([strnlen]) 718 libiberty_NEED_DECLARATION(canonicalize_file_name) 719fi 720 721# Figure out which version of pexecute to use. 722case "${host}" in 723 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;; 724 *-*-msdosdjgpp*) pexecute=pex-djgpp ;; 725 *-*-msdos*) pexecute=pex-msdos ;; 726 *) pexecute=pex-unix ;; 727esac 728AC_SUBST(pexecute) 729 730libiberty_AC_FUNC_STRNCMP 731 732# Install a library built with a cross compiler in $(tooldir) rather 733# than $(libdir). 734if test -z "${with_cross_host}"; then 735 INSTALL_DEST=libdir 736else 737 INSTALL_DEST=tooldir 738fi 739AC_SUBST(INSTALL_DEST) 740 741m4_pattern_allow(LIBOBJS) 742L="" 743for l in x $LIBOBJS; do 744 case $l in 745 x) ;; 746 *) L="$L ./$l" ;; 747 esac 748done 749LIBOBJS="$L" 750 751dnl Required by html and install-html 752AC_SUBST(datarootdir) 753AC_SUBST(docdir) 754AC_SUBST(htmldir) 755 756# We need multilib support, but only if configuring for the target. 757AC_CONFIG_FILES([Makefile]) 758AC_CONFIG_COMMANDS([default], 759 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 760if test -n "$CONFIG_FILES"; then 761 if test -n "${with_target_subdir}"; then 762 # FIXME: We shouldn't need to set ac_file 763 ac_file=Makefile 764 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 765 . ${libiberty_topdir}/config-ml.in 766 fi 767fi]], 768[[srcdir=${srcdir} 769host=${host} 770target=${target} 771with_target_subdir=${with_target_subdir} 772with_multisubdir=${with_multisubdir} 773ac_configure_args="--enable-multilib ${ac_configure_args}" 774CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 775ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 776libiberty_topdir=${libiberty_topdir} 777]]) 778AC_OUTPUT 779