configure.ac revision 1.1.1.2
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 131GCC_NO_EXECUTABLES 132AC_PROG_CC 133AC_SYS_LARGEFILE 134AC_PROG_CPP_WERROR 135 136ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \ 137 -Wstrict-prototypes], [ac_libiberty_warn_cflags]) 138ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags]) 139 140AC_PROG_CC_C_O 141# autoconf is lame and doesn't give us any substitution variable for this. 142if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then 143 NO_MINUS_C_MINUS_O=yes 144else 145 OUTPUT_OPTION='-o $@' 146fi 147AC_SUBST(NO_MINUS_C_MINUS_O) 148AC_SUBST(OUTPUT_OPTION) 149 150AC_C_CONST 151AC_C_INLINE 152AC_C_BIGENDIAN 153 154dnl When we start using libtool: 155dnl Default to a non shared library. This may be overridden by the 156dnl configure option --enable-shared. 157dnl AM_DISABLE_SHARED 158 159dnl When we start using libtool: 160dnl AM_PROG_LIBTOOL 161 162dnl When we start using automake: 163dnl AM_CONFIG_HEADER(config.h:config.in) 164AC_CONFIG_HEADER(config.h:config.in) 165 166dnl When we start using automake: 167dnl AM_MAINTAINER_MODE 168dnl AC_EXEEXT 169 170dnl When we start using automake: 171dnl AM_PROG_INSTALL 172AC_PROG_INSTALL 173 174# Don't build the shared library for build. 175if [[ -n "${with_build_subdir}" ]]; then 176 enable_shared=no 177fi 178 179frag= 180case "${host}" in 181 rs6000-ibm-aix3.1 | rs6000-ibm-aix) 182 frag=mh-aix ;; 183 *-*-cxux7*) frag=mh-cxux7 ;; 184 *-*-freebsd2.1.*) frag=mh-fbsd21 ;; 185 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;; 186 i370-*-opened*) frag=mh-openedition ;; 187 i[[34567]]86-*-windows*) frag=mh-windows ;; 188esac 189 190if [[ -n "${frag}" ]]; then 191 frag=${libiberty_topdir}/libiberty/config/$frag 192fi 193 194# If they didn't specify --enable-shared, don't generate shared libs. 195case "${enable_shared}" in 196 yes) shared=yes ;; 197 no) shared=no ;; 198 "") shared=no ;; 199 *) shared=yes ;; 200esac 201if [[ "${shared}" = "yes" ]]; then 202 case "${host}" in 203 *-*-cygwin*) ;; 204 alpha*-*-linux*) PICFLAG=-fPIC ;; 205 arm*-*-*) PICFLAG=-fPIC ;; 206 hppa*-*-*) PICFLAG=-fPIC ;; 207 i370-*-*) PICFLAG=-fPIC ;; 208 ia64-*-*) PICFLAG=-fpic ;; 209 i[[34567]]86-*-* | x86_64-*-*) 210 PICFLAG=-fpic ;; 211 m68k-*-*) PICFLAG=-fpic ;; 212 mips*-*-linux*) PICFLAG=-fPIC ;; 213 powerpc*-*-aix*) ;; 214 powerpc*-*-*) PICFLAG=-fPIC ;; 215 sparc*-*-*) case "${CFLAGS}" in 216 *-fpic* ) PICFLAG=-fpic ;; 217 * ) PICFLAG=-fPIC ;; 218 esac ;; 219 s390*-*-*) PICFLAG=-fpic ;; 220 sh*-*-*) PICFLAG=-fPIC ;; 221 esac 222fi 223AC_SUBST(PICFLAG) 224 225echo "# Warning: this fragment is automatically generated" > temp-frag 226 227if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 228 echo "Appending ${frag} to xhost-mkfrag" 229 echo "# Following fragment copied from ${frag}" >> temp-frag 230 cat ${frag} >> temp-frag 231fi 232 233# record if we want to build shared libs. 234if [[ "${shared}" = "yes" ]]; then 235 echo enable_shared = yes >> temp-frag 236else 237 echo enable_shared = no >> temp-frag 238fi 239 240frag=xhost-mkfrag 241${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 242 243host_makefile_frag=${frag} 244AC_SUBST_FILE(host_makefile_frag) 245 246# It's OK to check for header files. Although the compiler may not be 247# able to link anything, it had better be able to at least compile 248# something. 249AC_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) 250AC_HEADER_SYS_WAIT 251AC_HEADER_TIME 252 253libiberty_AC_DECLARE_ERRNO 254 255# Determine the size of an int for struct fibnode. 256AC_CHECK_SIZEOF([int]) 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, $liberty_cv_uint64, 288 [Define to an unsigned 64-bit type available in the compiler.]) 289fi 290 291AC_TYPE_INTPTR_T 292AC_TYPE_UINTPTR_T 293AC_TYPE_SSIZE_T 294 295# Given the above check, we always have uintptr_t or a fallback 296# definition. So define HAVE_UINTPTR_T in case any imported code 297# relies on it. 298AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 299 300AC_TYPE_PID_T 301 302# This is the list of functions which libiberty will provide if they 303# are not available on the host. 304 305funcs="asprintf" 306funcs="$funcs atexit" 307funcs="$funcs basename" 308funcs="$funcs bcmp" 309funcs="$funcs bcopy" 310funcs="$funcs bsearch" 311funcs="$funcs bzero" 312funcs="$funcs calloc" 313funcs="$funcs clock" 314funcs="$funcs ffs" 315funcs="$funcs getcwd" 316funcs="$funcs getpagesize" 317funcs="$funcs gettimeofday" 318funcs="$funcs index" 319funcs="$funcs insque" 320funcs="$funcs memchr" 321funcs="$funcs memcmp" 322funcs="$funcs memcpy" 323funcs="$funcs memmem" 324funcs="$funcs memmove" 325funcs="$funcs mempcpy" 326funcs="$funcs memset" 327funcs="$funcs mkstemps" 328funcs="$funcs putenv" 329funcs="$funcs random" 330funcs="$funcs rename" 331funcs="$funcs rindex" 332funcs="$funcs setenv" 333funcs="$funcs snprintf" 334funcs="$funcs sigsetmask" 335funcs="$funcs stpcpy" 336funcs="$funcs stpncpy" 337funcs="$funcs strcasecmp" 338funcs="$funcs strchr" 339funcs="$funcs strdup" 340funcs="$funcs strncasecmp" 341funcs="$funcs strndup" 342funcs="$funcs strrchr" 343funcs="$funcs strstr" 344funcs="$funcs strtod" 345funcs="$funcs strtol" 346funcs="$funcs strtoul" 347funcs="$funcs strverscmp" 348funcs="$funcs tmpnam" 349funcs="$funcs vasprintf" 350funcs="$funcs vfprintf" 351funcs="$funcs vprintf" 352funcs="$funcs vsnprintf" 353funcs="$funcs vsprintf" 354funcs="$funcs waitpid" 355funcs="$funcs setproctitle" 356 357# Also in the old function.def file: alloca, vfork, getopt. 358 359vars="sys_errlist sys_nerr sys_siglist" 360 361checkfuncs="__fsetlocking canonicalize_file_name dup3 getrusage getsysinfo \ 362 gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic realpath \ 363 sbrk spawnve spawnvpe strerror strsignal sysconf sysctl sysmp table \ 364 times wait3 wait4" 365 366# These are neither executed nor required, but they help keep 367# autoheader happy without adding a bunch of text to acconfig.h. 368if test "x" = "y"; then 369 AC_CHECK_FUNCS(asprintf atexit \ 370 basename bcmp bcopy bsearch bzero \ 371 calloc canonicalize_file_name clock \ 372 dup3 \ 373 ffs __fsetlocking \ 374 getcwd getpagesize getrusage getsysinfo gettimeofday \ 375 index insque \ 376 memchr memcmp memcpy memmem memmove memset mkstemps \ 377 on_exit \ 378 psignal pstat_getdynamic pstat_getstatic putenv \ 379 random realpath rename rindex \ 380 sbrk setenv setproctitle sigsetmask snprintf spawnve spawnvpe \ 381 stpcpy stpncpy strcasecmp strchr strdup \ 382 strerror strncasecmp strndup strrchr strsignal strstr strtod strtol \ 383 strtoul strverscmp sysconf sysctl sysmp \ 384 table times tmpnam \ 385 vasprintf vfprintf vprintf vsprintf \ 386 wait3 wait4 waitpid) 387 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 388 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 389 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 390 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 391fi 392 393# For each of these functions, if the host does not provide the 394# function we want to put FN.o in LIBOBJS, and if the host does 395# provide the function, we want to define HAVE_FN in config.h. 396 397setobjs= 398CHECK= 399target_header_dir= 400if test -n "${with_target_subdir}"; then 401 402 # We are being configured as a target library. AC_REPLACE_FUNCS 403 # may not work correctly, because the compiler may not be able to 404 # link executables. Note that we may still be being configured 405 # native. 406 407 # If we are being configured for newlib, we know which functions 408 # newlib provide and which ones we will be expected to provide. 409 410 if test "x${with_newlib}" = "xyes"; then 411 AC_LIBOBJ([asprintf]) 412 AC_LIBOBJ([basename]) 413 AC_LIBOBJ([insque]) 414 AC_LIBOBJ([random]) 415 AC_LIBOBJ([strdup]) 416 AC_LIBOBJ([vasprintf]) 417 418 for f in $funcs; do 419 case "$f" in 420 asprintf | basename | insque | random | strdup | vasprintf) 421 ;; 422 *) 423 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 424 AC_DEFINE_UNQUOTED($n) 425 ;; 426 esac 427 done 428 429 # newlib doesnt provide any of the variables in $vars, so we 430 # dont have to check them here. 431 432 # Of the functions in $checkfuncs, newlib only has strerror. 433 AC_DEFINE(HAVE_STRERROR) 434 435 setobjs=yes 436 437 fi 438 439 # If we are being configured for Mingw, we know which functions 440 # Mingw provides and which ones we will be expected to provide. 441 442 case "${host}" in 443 *-*-mingw*) 444 AC_LIBOBJ([asprintf]) 445 AC_LIBOBJ([basename]) 446 AC_LIBOBJ([bcmp]) 447 AC_LIBOBJ([bcopy]) 448 AC_LIBOBJ([bzero]) 449 AC_LIBOBJ([clock]) 450 AC_LIBOBJ([ffs]) 451 AC_LIBOBJ([getpagesize]) 452 AC_LIBOBJ([index]) 453 AC_LIBOBJ([insque]) 454 AC_LIBOBJ([mempcpy]) 455 AC_LIBOBJ([mkstemps]) 456 AC_LIBOBJ([random]) 457 AC_LIBOBJ([rindex]) 458 AC_LIBOBJ([sigsetmask]) 459 AC_LIBOBJ([stpcpy]) 460 AC_LIBOBJ([stpncpy]) 461 AC_LIBOBJ([strndup]) 462 AC_LIBOBJ([strverscmp]) 463 AC_LIBOBJ([vasprintf]) 464 AC_LIBOBJ([waitpid]) 465 466 for f in $funcs; do 467 case "$f" in 468 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid) 469 ;; 470 *) 471 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 472 AC_DEFINE_UNQUOTED($n) 473 ;; 474 esac 475 done 476 477 # Mingw doesnt provide any of the variables in $vars, so we 478 # dont have to check them here. 479 480 # Of the functions in $checkfuncs, Mingw only has strerror. 481 AC_DEFINE(HAVE_STRERROR) 482 483 setobjs=yes 484 ;; 485 486 *-*-msdosdjgpp) 487 AC_LIBOBJ([vasprintf]) 488 AC_LIBOBJ([vsnprintf]) 489 AC_LIBOBJ([snprintf]) 490 AC_LIBOBJ([asprintf]) 491 492 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 493 getcwd getpagesize getrusage gettimeofday \ 494 index insque memchr memcmp memcpy memmove memset psignal \ 495 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 496 strchr strdup strerror strncasecmp strrchr strstr strtod \ 497 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 498 vsprintf waitpid 499 do 500 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 501 AC_DEFINE_UNQUOTED($n) 502 done 503 504 505 setobjs=yes 506 ;; 507 508 esac 509 510 # We may wish to install the target headers somewhere. 511 AC_ARG_ENABLE(install-libiberty, 512 [ --enable-install-libiberty Install headers for end users], 513 enable_install_libiberty=$enableval, 514 enable_install_libiberty=no)dnl 515 516 # Option parsed, now set things appropriately. 517 case x"$enable_install_libiberty" in 518 xyes|x) 519 target_header_dir=libiberty 520 ;; 521 xno) 522 target_header_dir= 523 ;; 524 *) 525 # This could be sanity-checked in various ways... 526 target_header_dir="${enable_install_libiberty}" 527 ;; 528 esac 529 530 531else 532 533 # Not a target library, so we set things up to run the test suite. 534 CHECK=really-check 535 536fi 537 538AC_SUBST(CHECK) 539AC_SUBST(target_header_dir) 540 541# check for prctl PR_SET_NAME 542AC_LINK_IFELSE([AC_LANG_SOURCE([[ 543#include <sys/prctl.h> 544int main() 545{ 546 return (prctl(PR_SET_NAME, "foo") == 0) ? 0 : 1; 547} 548]])], AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, 549 [Define if you have prctl PR_SET_NAME])) 550 551case "${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 "${host}" in 603 604 *-*-mingw32*) 605 # Under mingw32, sys_nerr and sys_errlist exist, but they are 606 # macros, so the test below won't find them. 607 libiberty_cv_var_sys_nerr=yes 608 libiberty_cv_var_sys_errlist=yes 609 ;; 610 611 *-*-msdosdjgpp*) 612 # vfork and fork are stubs. 613 ac_cv_func_vfork_works=no 614 ;; 615 616 *-*-uwin*) 617 # Under some versions of uwin, vfork is notoriously buggy and the test 618 # can hang configure; on other versions, vfork exists just as a stub. 619 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 620 ac_cv_func_vfork_works=no 621 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 622 # macros (actually, these are imported from a DLL, but the end effect 623 # is the same), so the test below won't find them. 624 libiberty_cv_var_sys_nerr=yes 625 libiberty_cv_var_sys_errlist=yes 626 ;; 627 628 *-*-*vms*) 629 # Under VMS, vfork works very different than on Unix. The standard test 630 # won't work, and it isn't easily adaptable. It makes more sense to 631 # just force it. 632 ac_cv_func_vfork_works=yes 633 ;; 634 635 esac 636 637 # We haven't set the list of objects yet. Use the standard autoconf 638 # tests. This will only work if the compiler works. 639 AC_ISC_POSIX 640 AC_REPLACE_FUNCS($funcs) 641 libiberty_AC_FUNC_C_ALLOCA 642 AC_FUNC_FORK 643 if test $ac_cv_func_vfork_works = no; then 644 AC_LIBOBJ([vfork]) 645 fi 646 # We only need _doprnt if we might use it to implement v*printf. 647 if test $ac_cv_func_vprintf != yes \ 648 || test $ac_cv_func_vfprintf != yes \ 649 || test $ac_cv_func_vsprintf != yes; then 650 AC_REPLACE_FUNCS(_doprnt) 651 else 652 AC_CHECK_FUNCS(_doprnt) 653 fi 654 655 for v in $vars; do 656 AC_MSG_CHECKING([for $v]) 657 AC_CACHE_VAL(libiberty_cv_var_$v, 658 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])], 659 [eval "libiberty_cv_var_$v=yes"], 660 [eval "libiberty_cv_var_$v=no"])]) 661 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 662 AC_MSG_RESULT(yes) 663 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 664 AC_DEFINE_UNQUOTED($n) 665 else 666 AC_MSG_RESULT(no) 667 fi 668 done 669 670 # special check for _system_configuration because AIX <4.3.2 do not 671 # contain the `physmem' member. 672 AC_MSG_CHECKING([for external symbol _system_configuration]) 673 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 674 [[double x = _system_configuration.physmem;]])], 675 [AC_MSG_RESULT([yes]) 676 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 677 [Define if you have the _system_configuration variable.])], 678 [AC_MSG_RESULT([no])]) 679 680 AC_CHECK_FUNCS($checkfuncs) 681 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 682 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk]) 683 AC_CHECK_DECLS([strverscmp]) 684 libiberty_NEED_DECLARATION(canonicalize_file_name) 685fi 686 687# Figure out which version of pexecute to use. 688case "${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 testsuite/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