1 dnl Process this file with autoconf to produce a configure script 2 3 AC_PREREQ(2.64) 4 AC_INIT 5 AC_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... 11 ORIGINAL_LD_FOR_MULTILIBS=$LD 12 13 dnl We use these options to decide which functions to include. 14 AC_ARG_WITH(target-subdir, 15 [ --with-target-subdir=SUBDIR Configuring in a subdirectory for target]) 16 AC_ARG_WITH(build-subdir, 17 [ --with-build-subdir=SUBDIR Configuring in a subdirectory for build]) 18 AC_ARG_WITH(cross-host, 19 [ --with-cross-host=HOST Configuring with a cross compiler]) 20 AC_ARG_WITH(newlib, 21 [ --with-newlib Configuring with newlib]) 22 23 if test "${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}/${with_multisrctop}.." 34 fi 35 fi 36 else 37 libiberty_topdir="${srcdir}/.." 38 fi 39 AC_SUBST(libiberty_topdir) 40 AC_CONFIG_AUX_DIR($libiberty_topdir) 41 42 dnl Very limited version of automake's enable-maintainer-mode 43 44 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 45 dnl maintainer-mode is disabled by default 46 AC_ARG_ENABLE(maintainer-mode, 47 [ --enable-maintainer-mode 48 enable make rules and dependencies not useful 49 (and sometimes confusing) to the casual installer], 50 maintainer_mode=$enableval, 51 maintainer_mode=no) 52 53 AC_MSG_RESULT($maintainer_mode) 54 55 if test "$maintainer_mode" = "yes"; then 56 MAINT='' 57 NOTMAINT='#' 58 else 59 MAINT='#' 60 NOTMAINT='' 61 fi 62 AC_SUBST(MAINT)dnl 63 AC_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. 67 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, ) 68 if test "x$MAKEINFO" = "x"; then 69 MAKEINFO="@echo makeinfo missing; true" 70 BUILD_INFO= 71 else 72 BUILD_INFO=info 73 case "$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 $MAKEINFO is too old, 4.0 or newer required; true" 83 BUILD_INFO= 84 AC_MSG_WARN([ 85 *** Makeinfo is too old. Info documentation will not be built.]) 86 ;; 87 esac 88 ;; 89 esac 90 fi 91 AC_SUBST(MAKEINFO) 92 AC_SUBST(BUILD_INFO) 93 94 AC_CHECK_PROG(PERL, perl, perl, ) 95 if test x"$PERL" = x""; then 96 HAVE_PERL='#' 97 else 98 HAVE_PERL='' 99 fi 100 AC_SUBST(HAVE_PERL) 101 102 AC_CANONICAL_HOST 103 104 dnl When we start using automake: 105 dnl AM_INIT_AUTOMAKE(libiberty, 1.0) 106 107 dnl These must be called before AM_PROG_LIBTOOL, because it may want 108 dnl to call AC_CHECK_PROG. 109 AC_CHECK_TOOL(AR, ar) 110 AC_CHECK_TOOL(RANLIB, ranlib, :) 111 112 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB. 113 # Add --enable-multilib to configure. 114 # Default to --enable-multilib 115 AC_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. 126 if test $cross_compiling = no && test $multilib = yes \ 127 && test "x${with_multisubdir}" != x ; then 128 cross_compiling=maybe 129 fi 130 131 # We may wish to install the target headers somewhere. 132 AC_MSG_CHECKING([whether to install libiberty headers and static library]) 133 dnl install-libiberty is disabled by default 134 135 AC_ARG_ENABLE(install-libiberty, 136 [ --enable-install-libiberty Install headers and library for end users], 137 enable_install_libiberty=$enableval, 138 enable_install_libiberty=no)dnl 139 140 # Option parsed, now set things appropriately. 141 case x"$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="${enable_install_libiberty}" 151 ;; 152 esac 153 AC_MSG_RESULT($enable_install_libiberty) 154 AC_MSG_NOTICE([target_header_dir = $target_header_dir]) 155 156 GCC_NO_EXECUTABLES 157 AC_PROG_CC 158 AC_SYS_LARGEFILE 159 AC_PROG_CPP_WERROR 160 161 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \ 162 -Wstrict-prototypes], [ac_libiberty_warn_cflags]) 163 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags]) 164 165 AC_PROG_CC_C_O 166 # autoconf is lame and doesn't give us any substitution variable for this. 167 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then 168 NO_MINUS_C_MINUS_O=yes 169 else 170 OUTPUT_OPTION='-o $@' 171 fi 172 AC_SUBST(NO_MINUS_C_MINUS_O) 173 AC_SUBST(OUTPUT_OPTION) 174 175 AC_C_CONST 176 AC_C_INLINE 177 AC_C_BIGENDIAN 178 179 dnl When we start using libtool: 180 dnl Default to a non shared library. This may be overridden by the 181 dnl configure option --enable-shared. 182 dnl AM_DISABLE_SHARED 183 184 dnl When we start using libtool: 185 dnl AM_PROG_LIBTOOL 186 187 dnl When we start using automake: 188 dnl AM_CONFIG_HEADER(config.h:config.in) 189 AC_CONFIG_HEADER(config.h:config.in) 190 191 dnl When we start using automake: 192 dnl AM_MAINTAINER_MODE 193 dnl AC_EXEEXT 194 195 dnl When we start using automake: 196 dnl AM_PROG_INSTALL 197 AC_PROG_INSTALL 198 199 # Don't build the shared library for build. 200 if [[ -n "${with_build_subdir}" ]]; then 201 enable_shared=no 202 fi 203 204 frag= 205 case "${host}" in 206 rs6000-ibm-aix3.1 | rs6000-ibm-aix) 207 frag=mh-aix ;; 208 *-*-cxux7*) frag=mh-cxux7 ;; 209 *-*-freebsd2.1.*) frag=mh-fbsd21 ;; 210 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;; 211 i370-*-opened*) frag=mh-openedition ;; 212 i[[34567]]86-*-windows*) frag=mh-windows ;; 213 esac 214 215 if [[ -n "${frag}" ]]; then 216 frag=${libiberty_topdir}/libiberty/config/$frag 217 fi 218 219 GCC_PICFLAG 220 221 # If they didn't specify --enable-shared, don't generate shared libs. 222 case "${enable_shared}" in 223 yes) shared=yes ;; 224 no) shared=no ;; 225 "") shared=no ;; 226 *) shared=yes ;; 227 esac 228 229 # ...unless --enable-host-shared was passed from top-level config: 230 if [[ "${enable_host_shared}" = "yes" ]]; then 231 shared=yes 232 fi 233 234 if [[ "${shared}" != "yes" ]]; then 235 PICFLAG= 236 fi 237 AC_SUBST(PICFLAG) 238 239 NOASANFLAG= 240 case " ${CFLAGS} " in 241 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;; 242 esac 243 AC_SUBST(NOASANFLAG) 244 245 echo "# Warning: this fragment is automatically generated" > temp-frag 246 247 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then 248 echo "Appending ${frag} to xhost-mkfrag" 249 echo "# Following fragment copied from ${frag}" >> temp-frag 250 cat ${frag} >> temp-frag 251 fi 252 253 # record if we want to build shared libs. 254 if [[ "${shared}" = "yes" ]]; then 255 echo enable_shared = yes >> temp-frag 256 else 257 echo enable_shared = no >> temp-frag 258 fi 259 260 frag=xhost-mkfrag 261 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag 262 263 host_makefile_frag=${frag} 264 AC_SUBST_FILE(host_makefile_frag) 265 266 # It's OK to check for header files. Although the compiler may not be 267 # able to link anything, it had better be able to at least compile 268 # something. 269 AC_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) 270 AC_HEADER_SYS_WAIT 271 AC_HEADER_TIME 272 273 libiberty_AC_DECLARE_ERRNO 274 275 # Determine sizes of some types. 276 AC_CHECK_SIZEOF([int]) 277 AC_CHECK_SIZEOF([long]) 278 279 # Check for presense of long long 280 AC_CHECK_TYPE([long long], 281 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])], 282 []) 283 284 # Look for a 64-bit type. 285 AC_MSG_CHECKING([for a 64-bit type]) 286 AC_CACHE_VAL(liberty_cv_uint64, 287 [AC_TRY_COMPILE( 288 [#ifdef HAVE_STDINT_H 289 #include <stdint.h> 290 #endif], 291 [extern uint64_t foo;], 292 liberty_cv_uint64=uint64_t, 293 [AC_TRY_COMPILE( 294 [#ifdef HAVE_LIMITS_H 295 #include <limits.h> 296 #endif 297 #ifndef CHAR_BIT 298 #define CHAR_BIT 8 299 #endif], 300 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];], 301 liberty_cv_uint64="unsigned long", 302 [AC_TRY_COMPILE( 303 [#ifdef HAVE_LIMITS_H 304 #include <limits.h> 305 #endif 306 #ifndef CHAR_BIT 307 #define CHAR_BIT 8 308 #endif], 309 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];], 310 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])]) 311 AC_MSG_RESULT($liberty_cv_uint64) 312 if test "$liberty_cv_uint64" != none; then 313 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64, 314 [Define to an unsigned 64-bit type available in the compiler.]) 315 fi 316 317 AC_TYPE_INTPTR_T 318 AC_TYPE_UINTPTR_T 319 AC_TYPE_SSIZE_T 320 321 # Given the above check, we always have uintptr_t or a fallback 322 # definition. So define HAVE_UINTPTR_T in case any imported code 323 # relies on it. 324 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.]) 325 326 AC_TYPE_PID_T 327 328 # This is the list of functions which libiberty will provide if they 329 # are not available on the host. 330 331 funcs="asprintf" 332 funcs="$funcs atexit" 333 funcs="$funcs basename" 334 funcs="$funcs bcmp" 335 funcs="$funcs bcopy" 336 funcs="$funcs bsearch" 337 funcs="$funcs bzero" 338 funcs="$funcs calloc" 339 funcs="$funcs clock" 340 funcs="$funcs ffs" 341 funcs="$funcs getcwd" 342 funcs="$funcs getpagesize" 343 funcs="$funcs gettimeofday" 344 funcs="$funcs index" 345 funcs="$funcs insque" 346 funcs="$funcs memchr" 347 funcs="$funcs memcmp" 348 funcs="$funcs memcpy" 349 funcs="$funcs memmem" 350 funcs="$funcs memmove" 351 funcs="$funcs mempcpy" 352 funcs="$funcs memset" 353 funcs="$funcs mkstemps" 354 funcs="$funcs putenv" 355 funcs="$funcs random" 356 funcs="$funcs rename" 357 funcs="$funcs rindex" 358 funcs="$funcs setenv" 359 funcs="$funcs snprintf" 360 funcs="$funcs sigsetmask" 361 funcs="$funcs stpcpy" 362 funcs="$funcs stpncpy" 363 funcs="$funcs strcasecmp" 364 funcs="$funcs strchr" 365 funcs="$funcs strdup" 366 funcs="$funcs strncasecmp" 367 funcs="$funcs strndup" 368 funcs="$funcs strnlen" 369 funcs="$funcs strrchr" 370 funcs="$funcs strstr" 371 funcs="$funcs strtod" 372 funcs="$funcs strtol" 373 funcs="$funcs strtoul" 374 funcs="$funcs strtoll" 375 funcs="$funcs strtoull" 376 funcs="$funcs strverscmp" 377 funcs="$funcs tmpnam" 378 funcs="$funcs vasprintf" 379 funcs="$funcs vfprintf" 380 funcs="$funcs vprintf" 381 funcs="$funcs vsnprintf" 382 funcs="$funcs vsprintf" 383 funcs="$funcs waitpid" 384 funcs="$funcs setproctitle" 385 386 # Also in the old function.def file: alloca, vfork, getopt. 387 388 vars="sys_errlist sys_nerr sys_siglist" 389 390 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \ 391 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \ 392 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \ 393 sysmp table times wait3 wait4" 394 395 # These are neither executed nor required, but they help keep 396 # autoheader happy without adding a bunch of text to acconfig.h. 397 if test "x" = "y"; then 398 AC_CHECK_FUNCS(asprintf atexit \ 399 basename bcmp bcopy bsearch bzero \ 400 calloc canonicalize_file_name clock \ 401 dup3 \ 402 ffs __fsetlocking \ 403 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \ 404 index insque \ 405 memchr memcmp memcpy memmem memmove memset mkstemps \ 406 on_exit \ 407 psignal pstat_getdynamic pstat_getstatic putenv \ 408 random realpath rename rindex \ 409 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \ 410 stpcpy stpncpy strcasecmp strchr strdup \ 411 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \ 412 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \ 413 table times tmpnam \ 414 vasprintf vfprintf vprintf vsprintf \ 415 wait3 wait4 waitpid) 416 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull]) 417 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) 418 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) 419 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) 420 fi 421 422 # For each of these functions, if the host does not provide the 423 # function we want to put FN.o in LIBOBJS, and if the host does 424 # provide the function, we want to define HAVE_FN in config.h. 425 426 setobjs= 427 CHECK= 428 if test -n "${with_target_subdir}"; then 429 430 # We are being configured as a target library. AC_REPLACE_FUNCS 431 # may not work correctly, because the compiler may not be able to 432 # link executables. Note that we may still be being configured 433 # native. 434 435 # If we are being configured for newlib, we know which functions 436 # newlib provide and which ones we will be expected to provide. 437 438 if test "x${with_newlib}" = "xyes"; then 439 AC_LIBOBJ([asprintf]) 440 AC_LIBOBJ([basename]) 441 AC_LIBOBJ([insque]) 442 AC_LIBOBJ([random]) 443 AC_LIBOBJ([strdup]) 444 AC_LIBOBJ([vasprintf]) 445 446 for f in $funcs; do 447 case "$f" in 448 asprintf | basename | insque | random | strdup | vasprintf) 449 ;; 450 *) 451 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 452 AC_DEFINE_UNQUOTED($n) 453 ;; 454 esac 455 done 456 457 # newlib doesnt provide any of the variables in $vars, so we 458 # dont have to check them here. 459 460 # Of the functions in $checkfuncs, newlib only has strerror. 461 AC_DEFINE(HAVE_STRERROR) 462 463 setobjs=yes 464 465 fi 466 467 # If we are being configured for Mingw, we know which functions 468 # Mingw provides and which ones we will be expected to provide. 469 470 case "${host}" in 471 *-*-mingw*) 472 AC_LIBOBJ([asprintf]) 473 AC_LIBOBJ([basename]) 474 AC_LIBOBJ([bcmp]) 475 AC_LIBOBJ([bcopy]) 476 AC_LIBOBJ([bzero]) 477 AC_LIBOBJ([clock]) 478 AC_LIBOBJ([ffs]) 479 AC_LIBOBJ([getpagesize]) 480 AC_LIBOBJ([index]) 481 AC_LIBOBJ([insque]) 482 AC_LIBOBJ([mempcpy]) 483 AC_LIBOBJ([mkstemps]) 484 AC_LIBOBJ([random]) 485 AC_LIBOBJ([rindex]) 486 AC_LIBOBJ([sigsetmask]) 487 AC_LIBOBJ([stpcpy]) 488 AC_LIBOBJ([stpncpy]) 489 AC_LIBOBJ([strndup]) 490 AC_LIBOBJ([strnlen]) 491 AC_LIBOBJ([strverscmp]) 492 AC_LIBOBJ([vasprintf]) 493 AC_LIBOBJ([waitpid]) 494 495 for f in $funcs; do 496 case "$f" in 497 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid) 498 ;; 499 *) 500 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 501 AC_DEFINE_UNQUOTED($n) 502 ;; 503 esac 504 done 505 506 # Mingw doesnt provide any of the variables in $vars, so we 507 # dont have to check them here. 508 509 # Of the functions in $checkfuncs, Mingw only has strerror. 510 AC_DEFINE(HAVE_STRERROR) 511 512 setobjs=yes 513 ;; 514 515 *-*-msdosdjgpp) 516 AC_LIBOBJ([vasprintf]) 517 AC_LIBOBJ([vsnprintf]) 518 AC_LIBOBJ([snprintf]) 519 AC_LIBOBJ([asprintf]) 520 521 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \ 522 getcwd getpagesize getrusage gettimeofday \ 523 index insque memchr memcmp memcpy memmove memset psignal \ 524 putenv random rename rindex sbrk setenv stpcpy strcasecmp \ 525 strchr strdup strerror strncasecmp strrchr strstr strtod \ 526 strtol strtoul sysconf times tmpnam vfprintf vprintf \ 527 vsprintf waitpid 528 do 529 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 530 AC_DEFINE_UNQUOTED($n) 531 done 532 533 534 setobjs=yes 535 ;; 536 537 esac 538 539 else 540 541 # Not a target library, so we set things up to run the test suite. 542 CHECK=really-check 543 544 fi 545 546 AC_SUBST(CHECK) 547 AC_SUBST(target_header_dir) 548 549 case "${host}" in 550 *-*-cygwin* | *-*-mingw*) 551 AC_DEFINE(HAVE_SYS_ERRLIST) 552 AC_DEFINE(HAVE_SYS_NERR) 553 ;; 554 esac 555 556 if test -z "${setobjs}"; then 557 case "${host}" in 558 559 *-*-vxworks*) 560 # Handle VxWorks configuration specially, since on VxWorks the 561 # libraries are actually on the target board, not in the file 562 # system. 563 AC_LIBOBJ([basename]) 564 AC_LIBOBJ([getpagesize]) 565 AC_LIBOBJ([insque]) 566 AC_LIBOBJ([random]) 567 AC_LIBOBJ([strcasecmp]) 568 AC_LIBOBJ([strncasecmp]) 569 AC_LIBOBJ([strdup]) 570 AC_LIBOBJ([vfork]) 571 AC_LIBOBJ([waitpid]) 572 AC_LIBOBJ([vasprintf]) 573 for f in $funcs; do 574 case "$f" in 575 basename | getpagesize | insque | random | strcasecmp) 576 ;; 577 strncasecmp | strdup | vfork | waitpid | vasprintf) 578 ;; 579 *) 580 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 581 AC_DEFINE_UNQUOTED($n) 582 ;; 583 esac 584 done 585 586 # VxWorks doesn't provide any of the variables in $vars, so we 587 # don't have to check them here. 588 589 # Of the functions in $checkfuncs, VxWorks only has strerror. 590 AC_DEFINE(HAVE_STRERROR) 591 592 setobjs=yes 593 ;; 594 595 esac 596 fi 597 598 if test -z "${setobjs}"; then 599 600 case "${host}" in 601 602 *-*-mingw32*) 603 # Under mingw32, sys_nerr and sys_errlist exist, but they are 604 # macros, so the test below won't find them. 605 libiberty_cv_var_sys_nerr=yes 606 libiberty_cv_var_sys_errlist=yes 607 ;; 608 609 *-*-msdosdjgpp*) 610 # vfork and fork are stubs. 611 ac_cv_func_vfork_works=no 612 ;; 613 614 *-*-uwin*) 615 # Under some versions of uwin, vfork is notoriously buggy and the test 616 # can hang configure; on other versions, vfork exists just as a stub. 617 # FIXME: This should be removed once vfork in uwin's runtime is fixed. 618 ac_cv_func_vfork_works=no 619 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are 620 # macros (actually, these are imported from a DLL, but the end effect 621 # is the same), so the test below won't find them. 622 libiberty_cv_var_sys_nerr=yes 623 libiberty_cv_var_sys_errlist=yes 624 ;; 625 626 *-*-*vms*) 627 # Under VMS, vfork works very different than on Unix. The standard test 628 # won't work, and it isn't easily adaptable. It makes more sense to 629 # just force it. 630 ac_cv_func_vfork_works=yes 631 ;; 632 633 esac 634 635 # We haven't set the list of objects yet. Use the standard autoconf 636 # tests. This will only work if the compiler works. 637 AC_ISC_POSIX 638 AC_REPLACE_FUNCS($funcs) 639 libiberty_AC_FUNC_C_ALLOCA 640 AC_FUNC_FORK 641 if test $ac_cv_func_vfork_works = no; then 642 AC_LIBOBJ([vfork]) 643 fi 644 # We only need _doprnt if we might use it to implement v*printf. 645 if test $ac_cv_func_vprintf != yes \ 646 || test $ac_cv_func_vfprintf != yes \ 647 || test $ac_cv_func_vsprintf != yes; then 648 AC_REPLACE_FUNCS(_doprnt) 649 else 650 AC_CHECK_FUNCS(_doprnt) 651 fi 652 653 for v in $vars; do 654 AC_MSG_CHECKING([for $v]) 655 AC_CACHE_VAL(libiberty_cv_var_$v, 656 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])], 657 [eval "libiberty_cv_var_$v=yes"], 658 [eval "libiberty_cv_var_$v=no"])]) 659 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then 660 AC_MSG_RESULT(yes) 661 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 662 AC_DEFINE_UNQUOTED($n) 663 else 664 AC_MSG_RESULT(no) 665 fi 666 done 667 668 # special check for _system_configuration because AIX <4.3.2 do not 669 # contain the `physmem' member. 670 AC_MSG_CHECKING([for external symbol _system_configuration]) 671 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]], 672 [[double x = _system_configuration.physmem;]])], 673 [AC_MSG_RESULT([yes]) 674 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1, 675 [Define if you have the _system_configuration variable.])], 676 [AC_MSG_RESULT([no])]) 677 678 AC_CHECK_FUNCS($checkfuncs) 679 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf]) 680 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk]) 681 AC_CHECK_DECLS([strverscmp]) 682 libiberty_NEED_DECLARATION(canonicalize_file_name) 683 fi 684 685 # Figure out which version of pexecute to use. 686 case "${host}" in 687 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;; 688 *-*-msdosdjgpp*) pexecute=pex-djgpp ;; 689 *-*-msdos*) pexecute=pex-msdos ;; 690 *) pexecute=pex-unix ;; 691 esac 692 AC_SUBST(pexecute) 693 694 libiberty_AC_FUNC_STRNCMP 695 696 # Install a library built with a cross compiler in $(tooldir) rather 697 # than $(libdir). 698 if test -z "${with_cross_host}"; then 699 INSTALL_DEST=libdir 700 else 701 INSTALL_DEST=tooldir 702 fi 703 AC_SUBST(INSTALL_DEST) 704 705 m4_pattern_allow(LIBOBJS) 706 L="" 707 for l in x $LIBOBJS; do 708 case $l in 709 x) ;; 710 *) L="$L ./$l" ;; 711 esac 712 done 713 LIBOBJS="$L" 714 715 dnl Required by html and install-html 716 AC_SUBST(datarootdir) 717 AC_SUBST(docdir) 718 AC_SUBST(htmldir) 719 720 # We need multilib support, but only if configuring for the target. 721 AC_CONFIG_FILES([Makefile testsuite/Makefile]) 722 AC_CONFIG_COMMANDS([default], 723 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h 724 if test -n "$CONFIG_FILES"; then 725 if test -n "${with_target_subdir}"; then 726 # FIXME: We shouldn't need to set ac_file 727 ac_file=Makefile 728 LD="${ORIGINAL_LD_FOR_MULTILIBS}" 729 . ${libiberty_topdir}/config-ml.in 730 fi 731 fi]], 732 [[srcdir=${srcdir} 733 host=${host} 734 target=${target} 735 with_target_subdir=${with_target_subdir} 736 with_multisubdir=${with_multisubdir} 737 ac_configure_args="--enable-multilib ${ac_configure_args}" 738 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 739 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" 740 libiberty_topdir=${libiberty_topdir} 741 ]]) 742 AC_OUTPUT 743
