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 " ${CFLAGS} " in 242 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;; 243esac 244AC_SUBST(NOASANFLAG) 245 246echo "# Warning: this fragment is automatically generated" > temp-frag 247 248if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 249 echo "Appending ${frag} to xhost-mkfrag" 250 echo "# Following fragment copied from ${frag}" >> temp-frag 251 cat ${frag} >> temp-frag 252fi 253 254# record if we want to build shared libs. 255if [[ "${shared}" = "yes" ]]; then 256 echo enable_shared = yes >> temp-frag 257else 258 echo enable_shared = no >> temp-frag 259fi 260 261frag=xhost-mkfrag 262${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 263 264host_makefile_frag=${frag} 265AC_SUBST_FILE(host_makefile_frag) 266 267# It's OK to check for header files. Although the compiler may not be 268# able to link anything, it had better be able to at least compile 269# something. 270AC_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) 271AC_HEADER_SYS_WAIT 272AC_HEADER_TIME 273 274libiberty_AC_DECLARE_ERRNO 275 276# Determine sizes of some types. 277AC_CHECK_SIZEOF([int]) 278AC_CHECK_SIZEOF([long]) 279AC_CHECK_SIZEOF([size_t]) 280 281# Check for presense of long long 282AC_CHECK_TYPE([long long], 283 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])], 284 []) 285 286# Look for a 64-bit type. 287AC_MSG_CHECKING([for a 64-bit type]) 288AC_CACHE_VAL(liberty_cv_uint64, 289[AC_TRY_COMPILE( 290[#ifdef HAVE_STDINT_H 291#include <stdint.h> 292#endif], 293[extern uint64_t foo;], 294liberty_cv_uint64=uint64_t, 295[AC_TRY_COMPILE( 296[#ifdef HAVE_LIMITS_H 297#include <limits.h> 298#endif 299#ifndef CHAR_BIT 300#define CHAR_BIT 8 301#endif], 302[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 303liberty_cv_uint64="unsigned long", 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 long) * CHAR_BIT >= 64 ? 1 : -1];], 312liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 313AC_MSG_RESULT($liberty_cv_uint64) 314if test "$liberty_cv_uint64" != none; then 315 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 316 [Define to an unsigned 64-bit type available in the compiler.]) 317fi 318 319AC_TYPE_INTPTR_T 320AC_TYPE_UINTPTR_T 321AC_TYPE_SSIZE_T 322 323# Given the above check, we always have uintptr_t or a fallback 324# definition. So define HAVE_UINTPTR_T in case any imported code 325# relies on it. 326AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 327 328AC_TYPE_PID_T 329 330# This is the list of functions which libiberty will provide if they 331# are not available on the host. 332 333funcs="asprintf" 334funcs="$funcs atexit" 335funcs="$funcs basename" 336funcs="$funcs bcmp" 337funcs="$funcs bcopy" 338funcs="$funcs bsearch" 339funcs="$funcs bzero" 340funcs="$funcs calloc" 341funcs="$funcs clock" 342funcs="$funcs ffs" 343funcs="$funcs getcwd" 344funcs="$funcs getpagesize" 345funcs="$funcs gettimeofday" 346funcs="$funcs index" 347funcs="$funcs insque" 348funcs="$funcs memchr" 349funcs="$funcs memcmp" 350funcs="$funcs memcpy" 351funcs="$funcs memmem" 352funcs="$funcs memmove" 353funcs="$funcs mempcpy" 354funcs="$funcs memset" 355funcs="$funcs mkstemps" 356funcs="$funcs putenv" 357funcs="$funcs random" 358funcs="$funcs rename" 359funcs="$funcs rindex" 360funcs="$funcs setenv" 361funcs="$funcs snprintf" 362funcs="$funcs sigsetmask" 363funcs="$funcs stpcpy" 364funcs="$funcs stpncpy" 365funcs="$funcs strcasecmp" 366funcs="$funcs strchr" 367funcs="$funcs strdup" 368funcs="$funcs strncasecmp" 369funcs="$funcs strndup" 370funcs="$funcs strnlen" 371funcs="$funcs strrchr" 372funcs="$funcs strstr" 373funcs="$funcs strtod" 374funcs="$funcs strtol" 375funcs="$funcs strtoul" 376funcs="$funcs strtoll" 377funcs="$funcs strtoull" 378funcs="$funcs strverscmp" 379funcs="$funcs tmpnam" 380funcs="$funcs vasprintf" 381funcs="$funcs vfprintf" 382funcs="$funcs vprintf" 383funcs="$funcs vsnprintf" 384funcs="$funcs vsprintf" 385funcs="$funcs waitpid" 386funcs="$funcs setproctitle" 387 388# Also in the old function.def file: alloca, vfork, getopt. 389 390vars="sys_errlist sys_nerr sys_siglist" 391 392checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ 393 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \ 394 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \ 395 sysmp table times wait3 wait4" 396 397# These are neither executed nor required, but they help keep 398# autoheader happy without adding a bunch of text to acconfig.h. 399if test "x" = "y"; then 400 AC_CHECK_FUNCS(asprintf atexit \ 401 basename bcmp bcopy bsearch bzero \ 402 calloc canonicalize_file_name clock \ 403 dup3 \ 404 ffs __fsetlocking \ 405 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \ 406 index insque \ 407 memchr memcmp memcpy memmem memmove memset mkstemps \ 408 on_exit \ 409 pipe2 psignal pstat_getdynamic pstat_getstatic putenv \ 410 random realpath rename rindex \ 411 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \ 412 stpcpy stpncpy strcasecmp strchr strdup \ 413 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \ 414 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \ 415 table times tmpnam \ 416 vasprintf vfprintf vprintf vsprintf \ 417 wait3 wait4 waitpid) 418 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen]) 419 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 420 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 421 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 422fi 423 424# For each of these functions, if the host does not provide the 425# function we want to put FN.o in LIBOBJS, and if the host does 426# provide the function, we want to define HAVE_FN in config.h. 427 428setobjs= 429CHECK= 430if test -n "${with_target_subdir}"; then 431 432 # We are being configured as a target library. AC_REPLACE_FUNCS 433 # may not work correctly, because the compiler may not be able to 434 # link executables. Note that we may still be being configured 435 # native. 436 437 # If we are being configured for newlib, we know which functions 438 # newlib provide and which ones we will be expected to provide. 439 440 if test "x${with_newlib}" = "xyes"; then 441 AC_LIBOBJ([asprintf]) 442 AC_LIBOBJ([basename]) 443 AC_LIBOBJ([insque]) 444 AC_LIBOBJ([random]) 445 AC_LIBOBJ([strdup]) 446 AC_LIBOBJ([vasprintf]) 447 448 for f in $funcs; do 449 case "$f" in 450 asprintf | basename | insque | random | strdup | vasprintf) 451 ;; 452 *) 453 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 454 AC_DEFINE_UNQUOTED($n) 455 ;; 456 esac 457 done 458 459 # newlib doesnt provide any of the variables in $vars, so we 460 # dont have to check them here. 461 462 # Of the functions in $checkfuncs, newlib only has strerror. 463 AC_DEFINE(HAVE_STRERROR) 464 465 setobjs=yes 466 467 fi 468 469 # If we are being configured for Mingw, we know which functions 470 # Mingw provides and which ones we will be expected to provide. 471 472 case "${host}" in 473 *-*-mingw*) 474 AC_LIBOBJ([asprintf]) 475 AC_LIBOBJ([basename]) 476 AC_LIBOBJ([bcmp]) 477 AC_LIBOBJ([bcopy]) 478 AC_LIBOBJ([bzero]) 479 AC_LIBOBJ([clock]) 480 AC_LIBOBJ([ffs]) 481 AC_LIBOBJ([getpagesize]) 482 AC_LIBOBJ([index]) 483 AC_LIBOBJ([insque]) 484 AC_LIBOBJ([mempcpy]) 485 AC_LIBOBJ([mkstemps]) 486 AC_LIBOBJ([random]) 487 AC_LIBOBJ([rindex]) 488 AC_LIBOBJ([sigsetmask]) 489 AC_LIBOBJ([stpcpy]) 490 AC_LIBOBJ([stpncpy]) 491 AC_LIBOBJ([strndup]) 492 AC_LIBOBJ([strnlen]) 493 AC_LIBOBJ([strverscmp]) 494 AC_LIBOBJ([vasprintf]) 495 AC_LIBOBJ([waitpid]) 496 497 for f in $funcs; do 498 case "$f" in 499 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid) 500 ;; 501 *) 502 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 503 AC_DEFINE_UNQUOTED($n) 504 ;; 505 esac 506 done 507 508 # Mingw doesnt provide any of the variables in $vars, so we 509 # dont have to check them here. 510 511 # Of the functions in $checkfuncs, Mingw only has strerror. 512 AC_DEFINE(HAVE_STRERROR) 513 514 setobjs=yes 515 ;; 516 517 *-*-msdosdjgpp) 518 AC_LIBOBJ([vasprintf]) 519 AC_LIBOBJ([vsnprintf]) 520 AC_LIBOBJ([snprintf]) 521 AC_LIBOBJ([asprintf]) 522 523 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 524 getcwd getpagesize getrusage gettimeofday \ 525 index insque memchr memcmp memcpy memmove memset psignal \ 526 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 527 strchr strdup strerror strncasecmp strrchr strstr strtod \ 528 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 529 vsprintf waitpid 530 do 531 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 532 AC_DEFINE_UNQUOTED($n) 533 done 534 535 536 setobjs=yes 537 ;; 538 539 esac 540 541else 542 543 # Not a target library, so we set things up to run the test suite. 544 CHECK=really-check 545 546fi 547 548AC_SUBST(CHECK) 549AC_SUBST(target_header_dir) 550 551case "${host}" in 552 *-*-cygwin* | *-*-mingw*) 553 AC_DEFINE(HAVE_SYS_ERRLIST) 554 AC_DEFINE(HAVE_SYS_NERR) 555 ;; 556esac 557 558if test -z "${setobjs}"; then 559 case "${host}" in 560 561 *-*-vxworks*) 562 # Handle VxWorks configuration specially, since on VxWorks the 563 # libraries are actually on the target board, not in the file 564 # system. 565 AC_LIBOBJ([basename]) 566 AC_LIBOBJ([getpagesize]) 567 AC_LIBOBJ([insque]) 568 AC_LIBOBJ([random]) 569 AC_LIBOBJ([strcasecmp]) 570 AC_LIBOBJ([strncasecmp]) 571 AC_LIBOBJ([strdup]) 572 AC_LIBOBJ([vfork]) 573 AC_LIBOBJ([waitpid]) 574 AC_LIBOBJ([vasprintf]) 575 for f in $funcs; do 576 case "$f" in 577 basename | getpagesize | insque | random | strcasecmp) 578 ;; 579 strncasecmp | strdup | vfork | waitpid | vasprintf) 580 ;; 581 *) 582 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 583 AC_DEFINE_UNQUOTED($n) 584 ;; 585 esac 586 done 587 588 # VxWorks doesn't provide any of the variables in $vars, so we 589 # don't have to check them here. 590 591 # Of the functions in $checkfuncs, VxWorks only has strerror. 592 AC_DEFINE(HAVE_STRERROR) 593 594 setobjs=yes 595 ;; 596 597 esac 598fi 599 600if test -z "${setobjs}"; then 601 602 case "${host}" in 603 604 *-*-android*) 605 # On android, getpagesize is defined in unistd.h as a static inline 606 # function, which AC_CHECK_FUNCS does not handle properly. 607 ac_cv_func_getpagesize=yes 608 ;; 609 610 *-*-mingw32*) 611 # Under mingw32, sys_nerr and sys_errlist exist, but they are 612 # macros, so the test below won't find them. 613 libiberty_cv_var_sys_nerr=yes 614 libiberty_cv_var_sys_errlist=yes 615 ;; 616 617 *-*-msdosdjgpp*) 618 # vfork and fork are stubs. 619 ac_cv_func_vfork_works=no 620 ;; 621 622 *-*-uwin*) 623 # Under some versions of uwin, vfork is notoriously buggy and the test 624 # can hang configure; on other versions, vfork exists just as a stub. 625 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 626 ac_cv_func_vfork_works=no 627 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 628 # macros (actually, these are imported from a DLL, but the end effect 629 # is the same), so the test below won't find them. 630 libiberty_cv_var_sys_nerr=yes 631 libiberty_cv_var_sys_errlist=yes 632 ;; 633 634 *-*-*vms*) 635 # Under VMS, vfork works very different than on Unix. The standard test 636 # won't work, and it isn't easily adaptable. It makes more sense to 637 # just force it. 638 ac_cv_func_vfork_works=yes 639 ;; 640 641 esac 642 643 # We haven't set the list of objects yet. Use the standard autoconf 644 # tests. This will only work if the compiler works. 645 AC_ISC_POSIX 646 AC_REPLACE_FUNCS($funcs) 647 libiberty_AC_FUNC_C_ALLOCA 648 AC_FUNC_FORK 649 if test $ac_cv_func_vfork_works = no; then 650 AC_LIBOBJ([vfork]) 651 fi 652 # We only need _doprnt if we might use it to implement v*printf. 653 if test $ac_cv_func_vprintf != yes \ 654 || test $ac_cv_func_vfprintf != yes \ 655 || test $ac_cv_func_vsprintf != yes; then 656 AC_REPLACE_FUNCS(_doprnt) 657 else 658 AC_CHECK_FUNCS(_doprnt) 659 fi 660 661 for v in $vars; do 662 AC_MSG_CHECKING([for $v]) 663 AC_CACHE_VAL(libiberty_cv_var_$v, 664 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])], 665 [eval "libiberty_cv_var_$v=yes"], 666 [eval "libiberty_cv_var_$v=no"])]) 667 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 668 AC_MSG_RESULT(yes) 669 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 670 AC_DEFINE_UNQUOTED($n) 671 else 672 AC_MSG_RESULT(no) 673 fi 674 done 675 676 # special check for _system_configuration because AIX <4.3.2 do not 677 # contain the `physmem' member. 678 AC_MSG_CHECKING([for external symbol _system_configuration]) 679 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 680 [[double x = _system_configuration.physmem;]])], 681 [AC_MSG_RESULT([yes]) 682 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 683 [Define if you have the _system_configuration variable.])], 684 [AC_MSG_RESULT([no])]) 685 686 AC_CHECK_FUNCS($checkfuncs) 687 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 688 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk]) 689 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull]) 690 AC_CHECK_DECLS([strverscmp]) 691 AC_CHECK_DECLS([strnlen]) 692 libiberty_NEED_DECLARATION(canonicalize_file_name) 693fi 694 695# Figure out which version of pexecute to use. 696case "${host}" in 697 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;; 698 *-*-msdosdjgpp*) pexecute=pex-djgpp ;; 699 *-*-msdos*) pexecute=pex-msdos ;; 700 *) pexecute=pex-unix ;; 701esac 702AC_SUBST(pexecute) 703 704libiberty_AC_FUNC_STRNCMP 705 706# Install a library built with a cross compiler in $(tooldir) rather 707# than $(libdir). 708if test -z "${with_cross_host}"; then 709 INSTALL_DEST=libdir 710else 711 INSTALL_DEST=tooldir 712fi 713AC_SUBST(INSTALL_DEST) 714 715m4_pattern_allow(LIBOBJS) 716L="" 717for l in x $LIBOBJS; do 718 case $l in 719 x) ;; 720 *) L="$L ./$l" ;; 721 esac 722done 723LIBOBJS="$L" 724 725dnl Required by html and install-html 726AC_SUBST(datarootdir) 727AC_SUBST(docdir) 728AC_SUBST(htmldir) 729 730# We need multilib support, but only if configuring for the target. 731AC_CONFIG_FILES([Makefile testsuite/Makefile]) 732AC_CONFIG_COMMANDS([default], 733 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 734if test -n "$CONFIG_FILES"; then 735 if test -n "${with_target_subdir}"; then 736 # FIXME: We shouldn't need to set ac_file 737 ac_file=Makefile 738 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 739 . ${libiberty_topdir}/config-ml.in 740 fi 741fi]], 742[[srcdir=${srcdir} 743host=${host} 744target=${target} 745with_target_subdir=${with_target_subdir} 746with_multisubdir=${with_multisubdir} 747ac_configure_args="--enable-multilib ${ac_configure_args}" 748CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 749ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 750libiberty_topdir=${libiberty_topdir} 751]]) 752AC_OUTPUT 753