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