configure.ac revision 1.1
1dnl Process this file with autoconf to produce a configure script 2 3AC_PREREQ(2.59) 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 131GCC_NO_EXECUTABLES 132AC_PROG_CC 133AC_PROG_CPP_WERROR 134 135ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \ 136 -Wstrict-prototypes], [ac_libiberty_warn_cflags]) 137ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags]) 138 139AC_PROG_CC_C_O 140# autoconf is lame and doesn't give us any substitution variable for this. 141if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then 142 NO_MINUS_C_MINUS_O=yes 143else 144 OUTPUT_OPTION='-o $@' 145fi 146AC_SUBST(NO_MINUS_C_MINUS_O) 147AC_SUBST(OUTPUT_OPTION) 148 149AC_C_CONST 150AC_C_INLINE 151AC_C_BIGENDIAN 152 153dnl When we start using libtool: 154dnl Default to a non shared library. This may be overridden by the 155dnl configure option --enable-shared. 156dnl AM_DISABLE_SHARED 157 158dnl When we start using libtool: 159dnl AM_PROG_LIBTOOL 160 161dnl When we start using automake: 162dnl AM_CONFIG_HEADER(config.h:config.in) 163AC_CONFIG_HEADER(config.h:config.in) 164 165dnl When we start using automake: 166dnl AM_MAINTAINER_MODE 167dnl AC_EXEEXT 168 169dnl When we start using automake: 170dnl AM_PROG_INSTALL 171AC_PROG_INSTALL 172 173# Don't build the shared library for build. 174if [[ -n "${with_build_subdir}" ]]; then 175 enable_shared=no 176fi 177 178frag= 179case "${host}" in 180 rs6000-ibm-aix3.1 | rs6000-ibm-aix) 181 frag=mh-aix ;; 182 *-*-cxux7*) frag=mh-cxux7 ;; 183 *-*-freebsd2.1.*) frag=mh-fbsd21 ;; 184 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;; 185 i370-*-opened*) frag=mh-openedition ;; 186 i[[34567]]86-*-windows*) frag=mh-windows ;; 187esac 188 189if [[ -n "${frag}" ]]; then 190 frag=${libiberty_topdir}/libiberty/config/$frag 191fi 192 193# If they didn't specify --enable-shared, don't generate shared libs. 194case "${enable_shared}" in 195 yes) shared=yes ;; 196 no) shared=no ;; 197 "") shared=no ;; 198 *) shared=yes ;; 199esac 200if [[ "${shared}" = "yes" ]]; then 201 case "${host}" in 202 *-*-cygwin*) ;; 203 alpha*-*-linux*) PICFLAG=-fPIC ;; 204 arm*-*-*) PICFLAG=-fPIC ;; 205 hppa*-*-*) PICFLAG=-fPIC ;; 206 i370-*-*) PICFLAG=-fPIC ;; 207 ia64-*-*) PICFLAG=-fpic ;; 208 i[[34567]]86-*-* | x86_64-*-*) 209 PICFLAG=-fpic ;; 210 m68k-*-*) PICFLAG=-fpic ;; 211 mips*-*-linux) PICFLAG=-fPIC ;; 212 powerpc*-*-aix*) ;; 213 powerpc*-*-*) PICFLAG=-fPIC ;; 214 sparc*-*-*) case "${CFLAGS}" in 215 *-fpic* ) PICFLAG=-fpic ;; 216 * ) PICFLAG=-fPIC ;; 217 esac ;; 218 s390*-*-*) PICFLAG=-fpic ;; 219 esac 220fi 221AC_SUBST(PICFLAG) 222 223echo "# Warning: this fragment is automatically generated" > temp-frag 224 225if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 226 echo "Appending ${frag} to xhost-mkfrag" 227 echo "# Following fragment copied from ${frag}" >> temp-frag 228 cat ${frag} >> temp-frag 229fi 230 231# record if we want to build shared libs. 232if [[ "${shared}" = "yes" ]]; then 233 echo enable_shared = yes >> temp-frag 234else 235 echo enable_shared = no >> temp-frag 236fi 237 238frag=xhost-mkfrag 239${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 240 241host_makefile_frag=${frag} 242AC_SUBST_FILE(host_makefile_frag) 243 244# It's OK to check for header files. Although the compiler may not be 245# able to link anything, it had better be able to at least compile 246# something. 247AC_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) 248AC_HEADER_SYS_WAIT 249AC_HEADER_TIME 250 251libiberty_AC_DECLARE_ERRNO 252 253# Determine the size of an int for struct fibnode. 254AC_CHECK_SIZEOF([int]) 255 256AC_CHECK_TYPE(uintptr_t, unsigned long) 257 258# Look for a 64-bit type. 259AC_MSG_CHECKING([for a 64-bit type]) 260AC_CACHE_VAL(liberty_cv_uint64, 261[AC_TRY_COMPILE( 262[#ifdef HAVE_STDINT_H 263#include <stdint.h> 264#endif], 265[extern uint64_t foo;], 266liberty_cv_uint64=uint64_t, 267[AC_TRY_COMPILE( 268[#ifdef HAVE_LIMITS_H 269#include <limits.h> 270#endif 271#ifndef CHAR_BIT 272#define CHAR_BIT 8 273#endif], 274[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 275liberty_cv_uint64="unsigned long", 276[AC_TRY_COMPILE( 277[#ifdef HAVE_LIMITS_H 278#include <limits.h> 279#endif 280#ifndef CHAR_BIT 281#define CHAR_BIT 8 282#endif], 283[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];], 284liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 285AC_MSG_RESULT($liberty_cv_uint64) 286if test "$liberty_cv_uint64" != none; then 287 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 288 [Define to an unsigned 64-bit type available in the compiler.]) 289fi 290 291# Given the above check, we always have uintptr_t or a fallback 292# definition. So define HAVE_UINTPTR_T in case any imported code 293# relies on it. 294AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 295 296AC_TYPE_PID_T 297 298# This is the list of functions which libiberty will provide if they 299# are not available on the host. 300 301funcs="asprintf" 302funcs="$funcs atexit" 303funcs="$funcs basename" 304funcs="$funcs bcmp" 305funcs="$funcs bcopy" 306funcs="$funcs bsearch" 307funcs="$funcs bzero" 308funcs="$funcs calloc" 309funcs="$funcs clock" 310funcs="$funcs ffs" 311funcs="$funcs getcwd" 312funcs="$funcs getpagesize" 313funcs="$funcs gettimeofday" 314funcs="$funcs index" 315funcs="$funcs insque" 316funcs="$funcs memchr" 317funcs="$funcs memcmp" 318funcs="$funcs memcpy" 319funcs="$funcs memmove" 320funcs="$funcs mempcpy" 321funcs="$funcs memset" 322funcs="$funcs mkstemps" 323funcs="$funcs putenv" 324funcs="$funcs random" 325funcs="$funcs rename" 326funcs="$funcs rindex" 327funcs="$funcs setenv" 328funcs="$funcs snprintf" 329funcs="$funcs sigsetmask" 330funcs="$funcs stpcpy" 331funcs="$funcs stpncpy" 332funcs="$funcs strcasecmp" 333funcs="$funcs strchr" 334funcs="$funcs strdup" 335funcs="$funcs strncasecmp" 336funcs="$funcs strndup" 337funcs="$funcs strrchr" 338funcs="$funcs strstr" 339funcs="$funcs strtod" 340funcs="$funcs strtol" 341funcs="$funcs strtoul" 342funcs="$funcs strverscmp" 343funcs="$funcs tmpnam" 344funcs="$funcs vasprintf" 345funcs="$funcs vfprintf" 346funcs="$funcs vprintf" 347funcs="$funcs vsnprintf" 348funcs="$funcs vsprintf" 349funcs="$funcs waitpid" 350 351# Also in the old function.def file: alloca, vfork, getopt. 352 353vars="sys_errlist sys_nerr sys_siglist" 354 355checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday" 356checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp" 357checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking" 358 359# These are neither executed nor required, but they help keep 360# autoheader happy without adding a bunch of text to acconfig.h. 361if test "x" = "y"; then 362 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \ 363 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \ 364 memmove mempcpy memset putenv random rename rindex sigsetmask \ 365 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \ 366 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \ 367 vsprintf waitpid getrusage on_exit psignal strerror strsignal \ 368 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \ 369 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \ 370 realpath canonicalize_file_name __fsetlocking) 371 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf]) 372 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 373 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 374 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 375fi 376 377# For each of these functions, if the host does not provide the 378# function we want to put FN.o in LIBOBJS, and if the host does 379# provide the function, we want to define HAVE_FN in config.h. 380 381setobjs= 382CHECK= 383target_header_dir= 384if test -n "${with_target_subdir}"; then 385 386 # We are being configured as a target library. AC_REPLACE_FUNCS 387 # may not work correctly, because the compiler may not be able to 388 # link executables. Note that we may still be being configured 389 # native. 390 391 # If we are being configured for newlib, we know which functions 392 # newlib provide and which ones we will be expected to provide. 393 394 if test "x${with_newlib}" = "xyes"; then 395 AC_LIBOBJ([asprintf]) 396 AC_LIBOBJ([basename]) 397 AC_LIBOBJ([insque]) 398 AC_LIBOBJ([random]) 399 AC_LIBOBJ([strdup]) 400 AC_LIBOBJ([vasprintf]) 401 402 for f in $funcs; do 403 case "$f" in 404 asprintf | basename | insque | random | strdup | vasprintf) 405 ;; 406 *) 407 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 408 AC_DEFINE_UNQUOTED($n) 409 ;; 410 esac 411 done 412 413 # newlib doesnt provide any of the variables in $vars, so we 414 # dont have to check them here. 415 416 # Of the functions in $checkfuncs, newlib only has strerror. 417 AC_DEFINE(HAVE_STRERROR) 418 419 setobjs=yes 420 421 fi 422 423 # If we are being configured for Mingw, we know which functions 424 # Mingw provides and which ones we will be expected to provide. 425 426 case "${host}" in 427 *-*-mingw*) 428 AC_LIBOBJ([asprintf]) 429 AC_LIBOBJ([basename]) 430 AC_LIBOBJ([bcmp]) 431 AC_LIBOBJ([bcopy]) 432 AC_LIBOBJ([bzero]) 433 AC_LIBOBJ([clock]) 434 AC_LIBOBJ([ffs]) 435 AC_LIBOBJ([getpagesize]) 436 AC_LIBOBJ([index]) 437 AC_LIBOBJ([insque]) 438 AC_LIBOBJ([mempcpy]) 439 AC_LIBOBJ([mkstemps]) 440 AC_LIBOBJ([random]) 441 AC_LIBOBJ([rindex]) 442 AC_LIBOBJ([sigsetmask]) 443 AC_LIBOBJ([stpcpy]) 444 AC_LIBOBJ([stpncpy]) 445 AC_LIBOBJ([strndup]) 446 AC_LIBOBJ([strverscmp]) 447 AC_LIBOBJ([vasprintf]) 448 AC_LIBOBJ([waitpid]) 449 450 for f in $funcs; do 451 case "$f" in 452 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid) 453 ;; 454 *) 455 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 456 AC_DEFINE_UNQUOTED($n) 457 ;; 458 esac 459 done 460 461 # Mingw doesnt provide any of the variables in $vars, so we 462 # dont have to check them here. 463 464 # Of the functions in $checkfuncs, Mingw only has strerror. 465 AC_DEFINE(HAVE_STRERROR) 466 467 setobjs=yes 468 ;; 469 470 esac 471 472 # We may wish to install the target headers somewhere. 473 AC_ARG_ENABLE(install-libiberty, 474 [ --enable-install-libiberty Install headers for end users], 475 enable_install_libiberty=$enableval, 476 enable_install_libiberty=no)dnl 477 478 # Option parsed, now set things appropriately. 479 case x"$enable_install_libiberty" in 480 xyes|x) 481 target_header_dir=libiberty 482 ;; 483 xno) 484 target_header_dir= 485 ;; 486 *) 487 # This could be sanity-checked in various ways... 488 target_header_dir="${enable_install_libiberty}" 489 ;; 490 esac 491 492 493else 494 495 # Not a target library, so we set things up to run the test suite. 496 CHECK=really-check 497 498fi 499 500AC_SUBST(CHECK) 501AC_SUBST(target_header_dir) 502 503case "${host}" in 504 *-*-cygwin* | *-*-mingw*) 505 AC_DEFINE(HAVE_SYS_ERRLIST) 506 AC_DEFINE(HAVE_SYS_NERR) 507 ;; 508esac 509 510if test -z "${setobjs}"; then 511 case "${host}" in 512 513 *-*-vxworks*) 514 # Handle VxWorks configuration specially, since on VxWorks the 515 # libraries are actually on the target board, not in the file 516 # system. 517 AC_LIBOBJ([basename]) 518 AC_LIBOBJ([getpagesize]) 519 AC_LIBOBJ([insque]) 520 AC_LIBOBJ([random]) 521 AC_LIBOBJ([strcasecmp]) 522 AC_LIBOBJ([strncasecmp]) 523 AC_LIBOBJ([strdup]) 524 AC_LIBOBJ([vfork]) 525 AC_LIBOBJ([waitpid]) 526 AC_LIBOBJ([vasprintf]) 527 for f in $funcs; do 528 case "$f" in 529 basename | getpagesize | insque | random | strcasecmp) 530 ;; 531 strncasecmp | strdup | vfork | waitpid | vasprintf) 532 ;; 533 *) 534 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 535 AC_DEFINE_UNQUOTED($n) 536 ;; 537 esac 538 done 539 540 # VxWorks doesn't provide any of the variables in $vars, so we 541 # don't have to check them here. 542 543 # Of the functions in $checkfuncs, VxWorks only has strerror. 544 AC_DEFINE(HAVE_STRERROR) 545 546 setobjs=yes 547 ;; 548 549 *-*-msdosdjgpp) 550 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 551 getcwd getpagesize getrusage gettimeofday \ 552 index insque memchr memcmp memcpy memmove memset psignal \ 553 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 554 strchr strdup strerror strncasecmp strrchr strstr strtod \ 555 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 556 vsprintf waitpid 557 do 558 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 559 AC_DEFINE_UNQUOTED($n) 560 done 561 562 563 setobjs=yes 564 ;; 565 566 esac 567fi 568 569if test -z "${setobjs}"; then 570 571 case "${host}" in 572 573 *-*-cygwin*) 574 # The Cygwin library actually uses a couple of files from 575 # libiberty when it is built. If we are building a native 576 # Cygwin, and we run the tests, we will appear to have these 577 # files. However, when we go on to build winsup, we will wind up 578 # with a library which does not have the files, since they should 579 # have come from libiberty. 580 581 # We handle this by removing the functions the winsup library 582 # provides from our shell variables, so that they appear to be 583 # missing. 584 585 # DJ - only if we're *building* cygwin, not just building *with* cygwin 586 587 if test -n "${with_target_subdir}" 588 then 589 funcs="`echo $funcs | sed -e 's/random//'`" 590 AC_LIBOBJ([random]) 591 vars="`echo $vars | sed -e 's/sys_siglist//'`" 592 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`" 593 fi 594 ;; 595 596 *-*-mingw32*) 597 # Under mingw32, sys_nerr and sys_errlist exist, but they are 598 # macros, so the test below won't find them. 599 libiberty_cv_var_sys_nerr=yes 600 libiberty_cv_var_sys_errlist=yes 601 ;; 602 603 *-*-msdosdjgpp*) 604 # vfork and fork are stubs. 605 ac_cv_func_vfork_works=no 606 ;; 607 608 *-*-uwin*) 609 # Under some versions of uwin, vfork is notoriously buggy and the test 610 # can hang configure; on other versions, vfork exists just as a stub. 611 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 612 ac_cv_func_vfork_works=no 613 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 614 # macros (actually, these are imported from a DLL, but the end effect 615 # is the same), so the test below won't find them. 616 libiberty_cv_var_sys_nerr=yes 617 libiberty_cv_var_sys_errlist=yes 618 ;; 619 620 *-*-*vms*) 621 # Under VMS, vfork works very different than on Unix. The standard test 622 # won't work, and it isn't easily adaptable. It makes more sense to 623 # just force it. 624 ac_cv_func_vfork_works=yes 625 ;; 626 627 esac 628 629 # We haven't set the list of objects yet. Use the standard autoconf 630 # tests. This will only work if the compiler works. 631 AC_ISC_POSIX 632 AC_REPLACE_FUNCS($funcs) 633 libiberty_AC_FUNC_C_ALLOCA 634 AC_FUNC_FORK 635 if test $ac_cv_func_vfork_works = no; then 636 AC_LIBOBJ([vfork]) 637 fi 638 # We only need _doprnt if we might use it to implement v*printf. 639 if test $ac_cv_func_vprintf != yes \ 640 || test $ac_cv_func_vfprintf != yes \ 641 || test $ac_cv_func_vsprintf != yes; then 642 AC_REPLACE_FUNCS(_doprnt) 643 else 644 AC_CHECK_FUNCS(_doprnt) 645 fi 646 647 for v in $vars; do 648 AC_MSG_CHECKING([for $v]) 649 AC_CACHE_VAL(libiberty_cv_var_$v, 650 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])], 651 [eval "libiberty_cv_var_$v=yes"], 652 [eval "libiberty_cv_var_$v=no"])]) 653 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 654 AC_MSG_RESULT(yes) 655 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 656 AC_DEFINE_UNQUOTED($n) 657 else 658 AC_MSG_RESULT(no) 659 fi 660 done 661 662 # special check for _system_configuration because AIX <4.3.2 do not 663 # contain the `physmem' member. 664 AC_MSG_CHECKING([for external symbol _system_configuration]) 665 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 666 [[double x = _system_configuration.physmem;]])], 667 [AC_MSG_RESULT([yes]) 668 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 669 [Define if you have the _system_configuration variable.])], 670 [AC_MSG_RESULT([no])]) 671 672 AC_CHECK_FUNCS($checkfuncs) 673 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf]) 674 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk]) 675 AC_CHECK_DECLS([strverscmp]) 676 libiberty_NEED_DECLARATION(canonicalize_file_name) 677fi 678 679# Figure out which version of pexecute to use. 680case "${host}" in 681 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;; 682 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;; 683 *-*-msdos*) pexecute=./pex-msdos.o ;; 684 *) pexecute=./pex-unix.o ;; 685esac 686AC_SUBST(pexecute) 687 688libiberty_AC_FUNC_STRNCMP 689 690# Install a library built with a cross compiler in $(tooldir) rather 691# than $(libdir). 692if test -z "${with_cross_host}"; then 693 INSTALL_DEST=libdir 694else 695 INSTALL_DEST=tooldir 696fi 697AC_SUBST(INSTALL_DEST) 698 699m4_pattern_allow(LIBOBJS) 700L="" 701for l in x $LIBOBJS; do 702 case $l in 703 x) ;; 704 *) L="$L ./$l" ;; 705 esac 706done 707LIBOBJS="$L" 708 709dnl Required by html and install-html 710AC_SUBST(datarootdir) 711AC_SUBST(docdir) 712AC_SUBST(htmldir) 713 714# We need multilib support, but only if configuring for the target. 715AC_CONFIG_FILES([Makefile testsuite/Makefile]) 716AC_CONFIG_COMMANDS([default], 717 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 718if test -n "$CONFIG_FILES"; then 719 if test -n "${with_target_subdir}"; then 720 # FIXME: We shouldn't need to set ac_file 721 ac_file=Makefile 722 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 723 . ${libiberty_topdir}/config-ml.in 724 fi 725fi]], 726[[srcdir=${srcdir} 727host=${host} 728target=${target} 729with_target_subdir=${with_target_subdir} 730with_multisubdir=${with_multisubdir} 731ac_configure_args="--enable-multilib ${ac_configure_args}" 732CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 733ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 734libiberty_topdir=${libiberty_topdir} 735]]) 736AC_OUTPUT 737