configure.ac revision 1.5
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 = $target_header_dir]) 155 156GCC_NO_EXECUTABLES 157AC_PROG_CC 158AC_USE_SYSTEM_EXTENSIONS 159AC_SYS_LARGEFILE 160AC_PROG_CPP_WERROR 161 162ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \ 163 -Wstrict-prototypes], [ac_libiberty_warn_cflags]) 164ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags]) 165 166AC_PROG_CC_C_O 167# autoconf is lame and doesn't give us any substitution variable for this. 168if eval "test \"`echo '$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]) 279 280# Check for presense of long long 281AC_CHECK_TYPE([long long], 282 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])], 283 []) 284 285# Look for a 64-bit type. 286AC_MSG_CHECKING([for a 64-bit type]) 287AC_CACHE_VAL(liberty_cv_uint64, 288[AC_TRY_COMPILE( 289[#ifdef HAVE_STDINT_H 290#include <stdint.h> 291#endif], 292[extern uint64_t foo;], 293liberty_cv_uint64=uint64_t, 294[AC_TRY_COMPILE( 295[#ifdef HAVE_LIMITS_H 296#include <limits.h> 297#endif 298#ifndef CHAR_BIT 299#define CHAR_BIT 8 300#endif], 301[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 302liberty_cv_uint64="unsigned long", 303[AC_TRY_COMPILE( 304[#ifdef HAVE_LIMITS_H 305#include <limits.h> 306#endif 307#ifndef CHAR_BIT 308#define CHAR_BIT 8 309#endif], 310[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];], 311liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 312AC_MSG_RESULT($liberty_cv_uint64) 313if test "$liberty_cv_uint64" != none; then 314 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 315 [Define to an unsigned 64-bit type available in the compiler.]) 316fi 317 318AC_TYPE_INTPTR_T 319AC_TYPE_UINTPTR_T 320AC_TYPE_SSIZE_T 321 322# Given the above check, we always have uintptr_t or a fallback 323# definition. So define HAVE_UINTPTR_T in case any imported code 324# relies on it. 325AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 326 327AC_TYPE_PID_T 328 329# This is the list of functions which libiberty will provide if they 330# are not available on the host. 331 332funcs="asprintf" 333funcs="$funcs atexit" 334funcs="$funcs basename" 335funcs="$funcs bcmp" 336funcs="$funcs bcopy" 337funcs="$funcs bsearch" 338funcs="$funcs bzero" 339funcs="$funcs calloc" 340funcs="$funcs clock" 341funcs="$funcs ffs" 342funcs="$funcs getcwd" 343funcs="$funcs getpagesize" 344funcs="$funcs gettimeofday" 345funcs="$funcs index" 346funcs="$funcs insque" 347funcs="$funcs memchr" 348funcs="$funcs memcmp" 349funcs="$funcs memcpy" 350funcs="$funcs memmem" 351funcs="$funcs memmove" 352funcs="$funcs mempcpy" 353funcs="$funcs memset" 354funcs="$funcs mkstemps" 355funcs="$funcs putenv" 356funcs="$funcs random" 357funcs="$funcs rename" 358funcs="$funcs rindex" 359funcs="$funcs setenv" 360funcs="$funcs snprintf" 361funcs="$funcs sigsetmask" 362funcs="$funcs stpcpy" 363funcs="$funcs stpncpy" 364funcs="$funcs strcasecmp" 365funcs="$funcs strchr" 366funcs="$funcs strdup" 367funcs="$funcs strncasecmp" 368funcs="$funcs strndup" 369funcs="$funcs strnlen" 370funcs="$funcs strrchr" 371funcs="$funcs strstr" 372funcs="$funcs strtod" 373funcs="$funcs strtol" 374funcs="$funcs strtoul" 375funcs="$funcs strtoll" 376funcs="$funcs strtoull" 377funcs="$funcs strverscmp" 378funcs="$funcs tmpnam" 379funcs="$funcs vasprintf" 380funcs="$funcs vfprintf" 381funcs="$funcs vprintf" 382funcs="$funcs vsnprintf" 383funcs="$funcs vsprintf" 384funcs="$funcs waitpid" 385funcs="$funcs setproctitle" 386 387# Also in the old function.def file: alloca, vfork, getopt. 388 389vars="sys_errlist sys_nerr sys_siglist" 390 391checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ 392 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \ 393 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \ 394 sysmp table times wait3 wait4" 395 396# These are neither executed nor required, but they help keep 397# autoheader happy without adding a bunch of text to acconfig.h. 398if test "x" = "y"; then 399 AC_CHECK_FUNCS(asprintf atexit \ 400 basename bcmp bcopy bsearch bzero \ 401 calloc canonicalize_file_name clock \ 402 dup3 \ 403 ffs __fsetlocking \ 404 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \ 405 index insque \ 406 memchr memcmp memcpy memmem memmove memset mkstemps \ 407 on_exit \ 408 psignal pstat_getdynamic pstat_getstatic putenv \ 409 random realpath rename rindex \ 410 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \ 411 stpcpy stpncpy strcasecmp strchr strdup \ 412 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \ 413 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \ 414 table times tmpnam \ 415 vasprintf vfprintf vprintf vsprintf \ 416 wait3 wait4 waitpid) 417 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull]) 418 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 419 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 420 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 421fi 422 423# For each of these functions, if the host does not provide the 424# function we want to put FN.o in LIBOBJS, and if the host does 425# provide the function, we want to define HAVE_FN in config.h. 426 427setobjs= 428CHECK= 429if test -n "${with_target_subdir}"; then 430 431 # We are being configured as a target library. AC_REPLACE_FUNCS 432 # may not work correctly, because the compiler may not be able to 433 # link executables. Note that we may still be being configured 434 # native. 435 436 # If we are being configured for newlib, we know which functions 437 # newlib provide and which ones we will be expected to provide. 438 439 if test "x${with_newlib}" = "xyes"; then 440 AC_LIBOBJ([asprintf]) 441 AC_LIBOBJ([basename]) 442 AC_LIBOBJ([insque]) 443 AC_LIBOBJ([random]) 444 AC_LIBOBJ([strdup]) 445 AC_LIBOBJ([vasprintf]) 446 447 for f in $funcs; do 448 case "$f" in 449 asprintf | basename | insque | random | strdup | vasprintf) 450 ;; 451 *) 452 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 453 AC_DEFINE_UNQUOTED($n) 454 ;; 455 esac 456 done 457 458 # newlib doesnt provide any of the variables in $vars, so we 459 # dont have to check them here. 460 461 # Of the functions in $checkfuncs, newlib only has strerror. 462 AC_DEFINE(HAVE_STRERROR) 463 464 setobjs=yes 465 466 fi 467 468 # If we are being configured for Mingw, we know which functions 469 # Mingw provides and which ones we will be expected to provide. 470 471 case "${host}" in 472 *-*-mingw*) 473 AC_LIBOBJ([asprintf]) 474 AC_LIBOBJ([basename]) 475 AC_LIBOBJ([bcmp]) 476 AC_LIBOBJ([bcopy]) 477 AC_LIBOBJ([bzero]) 478 AC_LIBOBJ([clock]) 479 AC_LIBOBJ([ffs]) 480 AC_LIBOBJ([getpagesize]) 481 AC_LIBOBJ([index]) 482 AC_LIBOBJ([insque]) 483 AC_LIBOBJ([mempcpy]) 484 AC_LIBOBJ([mkstemps]) 485 AC_LIBOBJ([random]) 486 AC_LIBOBJ([rindex]) 487 AC_LIBOBJ([sigsetmask]) 488 AC_LIBOBJ([stpcpy]) 489 AC_LIBOBJ([stpncpy]) 490 AC_LIBOBJ([strndup]) 491 AC_LIBOBJ([strnlen]) 492 AC_LIBOBJ([strverscmp]) 493 AC_LIBOBJ([vasprintf]) 494 AC_LIBOBJ([waitpid]) 495 496 for f in $funcs; do 497 case "$f" in 498 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid) 499 ;; 500 *) 501 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 502 AC_DEFINE_UNQUOTED($n) 503 ;; 504 esac 505 done 506 507 # Mingw doesnt provide any of the variables in $vars, so we 508 # dont have to check them here. 509 510 # Of the functions in $checkfuncs, Mingw only has strerror. 511 AC_DEFINE(HAVE_STRERROR) 512 513 setobjs=yes 514 ;; 515 516 *-*-msdosdjgpp) 517 AC_LIBOBJ([vasprintf]) 518 AC_LIBOBJ([vsnprintf]) 519 AC_LIBOBJ([snprintf]) 520 AC_LIBOBJ([asprintf]) 521 522 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 523 getcwd getpagesize getrusage gettimeofday \ 524 index insque memchr memcmp memcpy memmove memset psignal \ 525 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 526 strchr strdup strerror strncasecmp strrchr strstr strtod \ 527 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 528 vsprintf waitpid 529 do 530 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 531 AC_DEFINE_UNQUOTED($n) 532 done 533 534 535 setobjs=yes 536 ;; 537 538 esac 539 540else 541 542 # Not a target library, so we set things up to run the test suite. 543 CHECK=really-check 544 545fi 546 547AC_SUBST(CHECK) 548AC_SUBST(target_header_dir) 549 550case "${host}" in 551 *-*-cygwin* | *-*-mingw*) 552 AC_DEFINE(HAVE_SYS_ERRLIST) 553 AC_DEFINE(HAVE_SYS_NERR) 554 ;; 555esac 556 557if test -z "${setobjs}"; then 558 case "${host}" in 559 560 *-*-vxworks*) 561 # Handle VxWorks configuration specially, since on VxWorks the 562 # libraries are actually on the target board, not in the file 563 # system. 564 AC_LIBOBJ([basename]) 565 AC_LIBOBJ([getpagesize]) 566 AC_LIBOBJ([insque]) 567 AC_LIBOBJ([random]) 568 AC_LIBOBJ([strcasecmp]) 569 AC_LIBOBJ([strncasecmp]) 570 AC_LIBOBJ([strdup]) 571 AC_LIBOBJ([vfork]) 572 AC_LIBOBJ([waitpid]) 573 AC_LIBOBJ([vasprintf]) 574 for f in $funcs; do 575 case "$f" in 576 basename | getpagesize | insque | random | strcasecmp) 577 ;; 578 strncasecmp | strdup | vfork | waitpid | vasprintf) 579 ;; 580 *) 581 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 582 AC_DEFINE_UNQUOTED($n) 583 ;; 584 esac 585 done 586 587 # VxWorks doesn't provide any of the variables in $vars, so we 588 # don't have to check them here. 589 590 # Of the functions in $checkfuncs, VxWorks only has strerror. 591 AC_DEFINE(HAVE_STRERROR) 592 593 setobjs=yes 594 ;; 595 596 esac 597fi 598 599if test -z "${setobjs}"; then 600 601 case "${host}" in 602 603 *-*-mingw32*) 604 # Under mingw32, sys_nerr and sys_errlist exist, but they are 605 # macros, so the test below won't find them. 606 libiberty_cv_var_sys_nerr=yes 607 libiberty_cv_var_sys_errlist=yes 608 ;; 609 610 *-*-msdosdjgpp*) 611 # vfork and fork are stubs. 612 ac_cv_func_vfork_works=no 613 ;; 614 615 *-*-uwin*) 616 # Under some versions of uwin, vfork is notoriously buggy and the test 617 # can hang configure; on other versions, vfork exists just as a stub. 618 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 619 ac_cv_func_vfork_works=no 620 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 621 # macros (actually, these are imported from a DLL, but the end effect 622 # is the same), so the test below won't find them. 623 libiberty_cv_var_sys_nerr=yes 624 libiberty_cv_var_sys_errlist=yes 625 ;; 626 627 *-*-*vms*) 628 # Under VMS, vfork works very different than on Unix. The standard test 629 # won't work, and it isn't easily adaptable. It makes more sense to 630 # just force it. 631 ac_cv_func_vfork_works=yes 632 ;; 633 634 esac 635 636 # We haven't set the list of objects yet. Use the standard autoconf 637 # tests. This will only work if the compiler works. 638 AC_ISC_POSIX 639 AC_REPLACE_FUNCS($funcs) 640 libiberty_AC_FUNC_C_ALLOCA 641 AC_FUNC_FORK 642 if test $ac_cv_func_vfork_works = no; then 643 AC_LIBOBJ([vfork]) 644 fi 645 # We only need _doprnt if we might use it to implement v*printf. 646 if test $ac_cv_func_vprintf != yes \ 647 || test $ac_cv_func_vfprintf != yes \ 648 || test $ac_cv_func_vsprintf != yes; then 649 AC_REPLACE_FUNCS(_doprnt) 650 else 651 AC_CHECK_FUNCS(_doprnt) 652 fi 653 654 for v in $vars; do 655 AC_MSG_CHECKING([for $v]) 656 AC_CACHE_VAL(libiberty_cv_var_$v, 657 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])], 658 [eval "libiberty_cv_var_$v=yes"], 659 [eval "libiberty_cv_var_$v=no"])]) 660 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 661 AC_MSG_RESULT(yes) 662 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 663 AC_DEFINE_UNQUOTED($n) 664 else 665 AC_MSG_RESULT(no) 666 fi 667 done 668 669 # special check for _system_configuration because AIX <4.3.2 do not 670 # contain the `physmem' member. 671 AC_MSG_CHECKING([for external symbol _system_configuration]) 672 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 673 [[double x = _system_configuration.physmem;]])], 674 [AC_MSG_RESULT([yes]) 675 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 676 [Define if you have the _system_configuration variable.])], 677 [AC_MSG_RESULT([no])]) 678 679 AC_CHECK_FUNCS($checkfuncs) 680 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 681 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk]) 682 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull]) 683 AC_CHECK_DECLS([strverscmp]) 684 libiberty_NEED_DECLARATION(canonicalize_file_name) 685fi 686 687# Figure out which version of pexecute to use. 688case "${host}" in 689 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;; 690 *-*-msdosdjgpp*) pexecute=pex-djgpp ;; 691 *-*-msdos*) pexecute=pex-msdos ;; 692 *) pexecute=pex-unix ;; 693esac 694AC_SUBST(pexecute) 695 696libiberty_AC_FUNC_STRNCMP 697 698# Install a library built with a cross compiler in $(tooldir) rather 699# than $(libdir). 700if test -z "${with_cross_host}"; then 701 INSTALL_DEST=libdir 702else 703 INSTALL_DEST=tooldir 704fi 705AC_SUBST(INSTALL_DEST) 706 707m4_pattern_allow(LIBOBJS) 708L="" 709for l in x $LIBOBJS; do 710 case $l in 711 x) ;; 712 *) L="$L ./$l" ;; 713 esac 714done 715LIBOBJS="$L" 716 717dnl Required by html and install-html 718AC_SUBST(datarootdir) 719AC_SUBST(docdir) 720AC_SUBST(htmldir) 721 722# We need multilib support, but only if configuring for the target. 723AC_CONFIG_FILES([Makefile]) 724AC_CONFIG_COMMANDS([default], 725 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 726if test -n "$CONFIG_FILES"; then 727 if test -n "${with_target_subdir}"; then 728 # FIXME: We shouldn't need to set ac_file 729 ac_file=Makefile 730 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 731 . ${libiberty_topdir}/config-ml.in 732 fi 733fi]], 734[[srcdir=${srcdir} 735host=${host} 736target=${target} 737with_target_subdir=${with_target_subdir} 738with_multisubdir=${with_multisubdir} 739ac_configure_args="--enable-multilib ${ac_configure_args}" 740CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 741ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 742libiberty_topdir=${libiberty_topdir} 743]]) 744AC_OUTPUT 745