ld/configure.ac

   1 dnl Process this file with autoconf to produce a configure script
   2 dnl
   3 dnl   Copyright (C) 2012-2023 Free Software Foundation, Inc.
   4 dnl
   5 dnl This file is free software; you can redistribute it and/or modify
   6 dnl it under the terms of the GNU General Public License as published by
   7 dnl the Free Software Foundation; either version 3 of the License, or
   8 dnl (at your option) any later version.
   9 dnl
  10 dnl This program is distributed in the hope that it will be useful,
  11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 dnl GNU General Public License for more details.
  14 dnl
  15 dnl You should have received a copy of the GNU General Public License
  16 dnl along with this program; see the file COPYING3.  If not see
  17 dnl <http://www.gnu.org/licenses/>.
  18 dnl
  19
  20 m4_include([../bfd/version.m4])
  21 AC_INIT([ld], BFD_VERSION)
  22 AC_CONFIG_SRCDIR(ldmain.c)
  23
  24 AC_CANONICAL_TARGET
  25 AC_CANONICAL_BUILD
  26
  27 AM_INIT_AUTOMAKE
  28 AM_SILENT_RULES([yes])
  29 AM_MAINTAINER_MODE
  30
  31 AC_PROG_CC
  32 AC_PROG_CXX
  33 AC_PROG_GREP
  34 AC_GNU_SOURCE
  35 AC_USE_SYSTEM_EXTENSIONS
  36 AC_PROG_INSTALL
  37 PKG_PROG_PKG_CONFIG
  38
  39 LT_INIT
  40 ACX_LARGEFILE
  41
  42 ac_checking=
  43 . ${srcdir}/../bfd/development.sh
  44 test "$development" = true && ac_checking=yes
  45 AC_ARG_ENABLE(checking,
  46 [  --enable-checking       enable run-time checks],
  47 [case "${enableval}" in
  48   no|none)  ac_checking= ;;
  49   *)        ac_checking=yes ;;
  50 esac])dnl
  51 if test x$ac_checking != x ; then
  52   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
  53 fi
  54
  55 AC_ARG_WITH(lib-path, [  --with-lib-path=dir1:dir2...  set default LIB_PATH],LIB_PATH=$withval)
  56 AC_ARG_ENABLE(targets,
  57 [  --enable-targets        alternative target configurations],
  58 [case "${enableval}" in
  59   yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
  60             ;;
  61   no)       enable_targets= ;;
  62   *)        enable_targets=$enableval ;;
  63 esac])dnl
  64
  65 BFD_64_BIT
  66
  67 AC_ARG_WITH(sysroot,
  68 [  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
  69 [
  70  case ${with_sysroot} in
  71  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
  72  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
  73  esac
  74
  75  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
  76  use_sysroot=yes
  77
  78  if test "x$prefix" = xNONE; then
  79   test_prefix=/usr/local
  80  else
  81   test_prefix=$prefix
  82  fi
  83  if test "x$exec_prefix" = xNONE; then
  84   test_exec_prefix=$test_prefix
  85  else
  86   test_exec_prefix=$exec_prefix
  87  fi
  88  case ${TARGET_SYSTEM_ROOT} in
  89  "${test_prefix}"|"${test_prefix}/"*|\
  90  "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
  91  '${prefix}'|'${prefix}/'*|\
  92  '${exec_prefix}'|'${exec_prefix}/'*)
  93    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
  94    TARGET_SYSTEM_ROOT_DEFINE="$t"
  95    ;;
  96  esac
  97 ], [
  98  use_sysroot=no
  99  TARGET_SYSTEM_ROOT=
 100  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
 101 ])
 102 AC_SUBST(use_sysroot)
 103 AC_SUBST(TARGET_SYSTEM_ROOT)
 104 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
 105
 106 dnl Use --enable-gold to decide if this linker should be the default.
 107 dnl "install_as_default" is set to false if gold is the default linker.
 108 dnl "installed_linker" is the installed BFD linker name.
 109 AC_ARG_ENABLE(gold,
 110 [[  --enable-gold[=ARG]     build gold [ARG={default,yes,no}]]],
 111 [case "${enableval}" in
 112  default)
 113    install_as_default=no
 114    installed_linker=ld.bfd
 115    ;;
 116  yes|no)
 117    install_as_default=yes
 118    installed_linker=ld.bfd
 119    ;;
 120  *)
 121    AC_MSG_ERROR([invalid --enable-gold argument])
 122    ;;
 123  esac],
 124 [install_as_default=yes
 125  installed_linker=ld.bfd])
 126 AC_SUBST(install_as_default)
 127 AC_SUBST(installed_linker)
 128
 129 AC_ARG_ENABLE([got],
 130 AS_HELP_STRING([--enable-got=<type>],
 131                [GOT handling scheme (target, single, negative, multigot)]),
 132 [case "${enableval}" in
 133   target | single | negative | multigot)  got_handling=$enableval ;;
 134   *)  AC_MSG_ERROR(bad value ${enableval} for --enable-got option) ;;
 135 esac],
 136 [got_handling=target])
 137
 138 case "${got_handling}" in
 139   target)
 140     AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_TARGET_DEFAULT],
 141               [Define to choose default GOT handling scheme]) ;;
 142   single)
 143     AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_SINGLE],
 144               [Define to choose default GOT handling scheme]) ;;
 145   negative)
 146     AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_NEGATIVE],
 147               [Define to choose default GOT handling scheme]) ;;
 148   multigot)
 149     AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_MULTIGOT],
 150               [Define to choose default GOT handling scheme]) ;;
 151   *)  AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;;
 152 esac
 153
 154 # PR gas/19109
 155 # Decide the default method for compressing debug sections.
 156 ac_default_compressed_debug_sections=unset
 157 # Provide a configure time option to override our default.
 158 AC_ARG_ENABLE(compressed_debug_sections,
 159               AS_HELP_STRING([--enable-compressed-debug-sections={all,ld,none}],
 160               [compress debug sections by default])],
 161 [case ,"${enableval}", in
 162   ,yes, | ,all, | *,ld,*) ac_default_compressed_debug_sections=yes ;;
 163   ,no, | ,none,)  ac_default_compressed_debug_sections=no ;;
 164 esac])dnl
 165
 166 # Select default compression algorithm.
 167 ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_GABI_ZLIB
 168 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
 169               AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
 170               [Default compression algorithm for --enable-compressed-debug-sections.]),
 171 [case "${enableval}" in
 172    zstd) ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_ZSTD ;;
 173 esac])dnl
 174
 175 # Decide setting DT_RUNPATH instead of DT_RPATH by default
 176 ac_default_new_dtags=unset
 177 # Provide a configure time option to override our default.
 178 AC_ARG_ENABLE(new_dtags,
 179               AS_HELP_STRING([--enable-new-dtags],
 180               [set DT_RUNPATH instead of DT_RPATH by default])],
 181 [case "${enableval}" in
 182   yes) ac_default_new_dtags=1 ;;
 183   no) ac_default_new_dtags=0 ;;
 184 esac])dnl
 185
 186 # Decide if -z relro should be enabled in ELF linker by default.
 187 ac_default_ld_z_relro=unset
 188 # Provide a configure time option to override our default.
 189 AC_ARG_ENABLE(relro,
 190               AS_HELP_STRING([--enable-relro],
 191               [enable -z relro in ELF linker by default]),
 192 [case "${enableval}" in
 193   yes)  ac_default_ld_z_relro=1 ;;
 194   no)  ac_default_ld_z_relro=0 ;;
 195 esac])dnl
 196
 197 # Decide if DT_TEXTREL check should be enabled in ELF linker.
 198 ac_default_ld_textrel_check=unset
 199 AC_ARG_ENABLE([textrel-check],
 200               AC_HELP_STRING([--enable-textrel-check=@<:@yes|no|warning|error@:>@],
 201                              [enable DT_TEXTREL check in ELF linker]),
 202 [case "${enableval}" in
 203   yes|no|warning|error) ac_default_ld_textrel_check=${enableval} ;;
 204 esac])
 205
 206 # Decide if -z separate-code should be enabled in ELF linker by default.
 207 ac_default_ld_z_separate_code=unset
 208 AC_ARG_ENABLE(separate-code,
 209               AS_HELP_STRING([--enable-separate-code],
 210               [enable -z separate-code in ELF linker by default]),
 211 [case "${enableval}" in
 212   yes) ac_default_ld_z_separate_code=1 ;;
 213   no) ac_default_ld_z_separate_code=0 ;;
 214 esac])
 215
 216
 217 # By default warn when an executable stack is created due to object files
 218 # requesting such, not when the user specifies -z execstack.
 219 ac_default_ld_warn_execstack=2
 220 AC_ARG_ENABLE(warn-execstack,
 221               AS_HELP_STRING([--enable-warn-execstack],
 222               [enable warnings when creating an executable stack]),
 223 [case "${enableval}" in
 224   yes) ac_default_ld_warn_execstack=1 ;;
 225   no)  ac_default_ld_warn_execstack=0 ;;
 226 esac])
 227
 228 ac_default_ld_error_execstack=0
 229 AC_ARG_ENABLE(error-execstack,
 230               AS_HELP_STRING([--enable-error-execstack],
 231               [turn executable stack warnings into errors]),
 232 [case "${enableval}" in
 233   yes) ac_default_ld_error_execstack=1 ;;
 234   no)  ac_default_ld_error_execstack=0 ;;
 235 esac])
 236
 237 ac_default_ld_warn_rwx_segments=unset
 238 AC_ARG_ENABLE(warn-rwx-segments,
 239               AS_HELP_STRING([--enable-warn-rwx-segments],
 240               [enable warnings when creating segments with RWX permissions]),
 241 [case "${enableval}" in
 242   yes) ac_default_ld_warn_rwx_segments=1 ;;
 243   no)  ac_default_ld_warn_rwx_segments=0 ;;
 244 esac])
 245
 246 ac_default_ld_error_rwx_segments=0
 247 AC_ARG_ENABLE(error-rwx-segments,
 248               AS_HELP_STRING([--enable-error-rwx-segments],
 249               [turn executable segment warnings into errors]),
 250 [case "${enableval}" in
 251   yes) ac_default_ld_error_rwx_segments=1 ;;
 252   no)  ac_default_ld_error_rwx_segments=0 ;;
 253 esac])
 254
 255 ac_default_ld_default_execstack=unset
 256 AC_ARG_ENABLE(default-execstack,
 257               AS_HELP_STRING([--enable-default-execstack],
 258               [create an executable stack if an input file is missing a .note.GNU-stack section]),
 259 [case "${enableval}" in
 260   yes) ac_default_ld_default_execstack=1 ;;
 261   no)  ac_default_ld_default_execstack=0 ;;
 262 esac])
 263
 264
 265 # Decide if --error-handling-script should be supported.
 266 ac_support_error_handling_script=unset
 267 AC_ARG_ENABLE(error-handling-script,
 268               AS_HELP_STRING([--enable-error-handling-script],
 269               [enable/disable support for the --error-handling-script option]),
 270 [case "${enableval}" in
 271   yes) ac_support_error_handling_script=1 ;;
 272   no)  ac_support_error_handling_script=0 ;;
 273 esac])
 274
 275 # Decide which "--hash-style" to use by default
 276 # Provide a configure time option to override our default.
 277 AC_ARG_ENABLE([default-hash-style],
 278 AS_HELP_STRING([--enable-default-hash-style={sysv,gnu,both}],
 279                [use this default hash style]),
 280 [case "${enable_default_hash_style}" in
 281   sysv | gnu | both) ;;
 282   *) AC_MSG_ERROR([bad value ${enable_default_hash_style} for enable-default-hash-style option]) ;;
 283 esac],
 284 [case "${target}" in
 285   # Enable gnu hash only on GNU targets, but not mips
 286   mips*-*-*) enable_default_hash_style=sysv ;;
 287   *-*-gnu* | *-*-linux* | *-*-nacl*) enable_default_hash_style=both ;;
 288   *) enable_default_hash_style=sysv ;;
 289 esac])
 290
 291 case "${enable_default_hash_style}" in
 292   sysv | both) ac_default_emit_sysv_hash=1 ;;
 293   *) ac_default_emit_sysv_hash=0 ;;
 294 esac
 295
 296 case "${enable_default_hash_style}" in
 297   gnu | both) ac_default_emit_gnu_hash=1 ;;
 298   *) ac_default_emit_gnu_hash=0 ;;
 299 esac
 300
 301 AC_ARG_ENABLE(initfini-array,
 302 [  --disable-initfini-array do not use .init_array/.fini_array sections],
 303 [case "${enableval}" in
 304  yes|no) ;;
 305  *) AC_MSG_ERROR([invalid --enable-initfini-array argument]) ;;
 306  esac], [enable_initfini_array=yes])
 307 AC_SUBST(enable_initfini_array)
 308 if test $enable_initfini_array = yes; then
 309   AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
 310     [Define .init_array/.fini_array sections are available and working.])
 311 fi
 312
 313 GCC_ENABLE([libctf], [yes], [], [Handle .ctf type-info sections])
 314 if test "${enable_libctf}" = yes; then
 315     AC_DEFINE(ENABLE_LIBCTF, 1, [Handle .ctf type-info sections])
 316 fi
 317 AM_CONDITIONAL(ENABLE_LIBCTF, test "${enable_libctf}" = yes)
 318 AC_SUBST(enable_libctf)
 319
 320 # Used to validate --package-metadata= input. Disabled by default.
 321 AC_ARG_ENABLE([jansson],
 322   [AS_HELP_STRING([--enable-jansson],
 323     [enable jansson [default=no]])],
 324   [enable_jansson=$enableval],
 325   [enable_jansson="no"])
 326
 327 AS_IF([test "x$enable_jansson" != "xno"],
 328   [PKG_CHECK_MODULES(JANSSON, [jansson],
 329     [
 330       AC_DEFINE(HAVE_JANSSON, 1, [The jansson library is to be used])
 331       AC_SUBST([JANSSON_CFLAGS])
 332       AC_SUBST([JANSSON_LIBS])
 333     ],
 334     [AC_MSG_ERROR([Cannot find jansson library])])
 335   ])
 336
 337 AM_BINUTILS_WARNINGS
 338
 339 AM_LC_MESSAGES
 340
 341 AC_CONFIG_HEADERS([config.h:config.in])
 342
 343 # PR 14072
 344 AH_VERBATIM([00_CONFIG_H_CHECK],
 345 [/* Check that config.h is #included before system headers
 346    (this works only for glibc, but that should be enough).  */
 347 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
 348 #  error config.h must be #included before system headers
 349 #endif
 350 #define __CONFIG_H__ 1])
 351
 352 if test -z "$target" ; then
 353     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
 354 fi
 355 if test -z "$host" ; then
 356     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
 357 fi
 358
 359 # host-specific stuff:
 360
 361 ALL_LINGUAS="bg da de es fi fr ga id it ja pt_BR ru sr sv tr uk vi zh_CN zh_TW"
 362 ZW_GNU_GETTEXT_SISTER_DIR
 363 AM_PO_SUBDIRS
 364
 365 AC_EXEEXT
 366
 367 AC_PROG_YACC
 368 AM_PROG_LEX
 369
 370 AM_MAINTAINER_MODE
 371 AM_CONDITIONAL(GENINSRC_NEVER, false)
 372 ACX_PROG_CMP_IGNORE_INITIAL
 373
 374 . ${srcdir}/configure.host
 375
 376 AC_SUBST(HDEFINES)
 377 AC_SUBST(NATIVE_LIB_DIRS)
 378
 379 # We use headers from include/ that check various HAVE_*_H macros, thus
 380 # should ensure they are set by configure.  This is true even when C99
 381 # guarantees they are available.
 382 # sha1.h and md4.h test HAVE_LIMITS_H, HAVE_SYS_TYPES_H and HAVE_STDINT_H
 383 # plugin-api.h tests HAVE_STDINT_H and HAVE_INTTYPES_H
 384 # Besides those, we need to check anything used in ld/ not in C99.
 385 AC_CHECK_HEADERS(fcntl.h elf-hints.h limits.h inttypes.h stdint.h \
 386                  sys/file.h sys/mman.h sys/param.h sys/stat.h sys/time.h \
 387                  sys/types.h unistd.h)
 388 AC_CHECK_FUNCS(close glob lseek mkstemp open realpath waitpid)
 389
 390 BFD_BINARY_FOPEN
 391
 392 AC_CHECK_DECLS([asprintf, environ, stpcpy])
 393
 394 AC_FUNC_MMAP
 395
 396 AC_SEARCH_LIBS([dlopen], [dl])
 397
 398 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 399 AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
 400 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 401 ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)])
 402 AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h)
 403 if test $ld_cv_decl_getopt_unistd_h = yes; then
 404   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 405             [Is the prototype for getopt in <unistd.h> in the expected format?])
 406 fi
 407
 408 # Link in zlib/zstd if we can.  This allows us to read and write
 409 # compressed debug sections.
 410 AM_ZLIB
 411 AC_ZSTD
 412
 413 # target-specific stuff:
 414
 415 all_targets=
 416 EMUL=
 417 all_emuls=
 418 all_emul_extras=
 419 all_libpath=
 420 TDIRS=
 421
 422 elf_list_options=false
 423 elf_shlib_list_options=false
 424 elf_plt_unwind_list_options=false
 425 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 426 do
 427   if test "$targ_alias" = "all"; then
 428     all_targets=true
 429     elf_list_options=true
 430     elf_shlib_list_options=true
 431     elf_plt_unwind_list_options=true
 432   else
 433     # Canonicalize the secondary target names.
 434     result=`$ac_config_sub $targ_alias 2>/dev/null`
 435     if test -n "$result"; then
 436         targ=$result
 437     else
 438         targ=$targ_alias
 439     fi
 440
 441     . ${srcdir}/configure.tgt
 442
 443     if test "$targ" = "$target"; then
 444       EMUL=$targ_emul
 445     fi
 446
 447     if test x${enable_64_bit_bfd} = xno; then
 448       . ${srcdir}/../bfd/config.bfd
 449     fi
 450
 451     if test x${enable_64_bit_bfd} = xyes; then
 452       targ_extra_emuls="$targ_extra_emuls $targ64_extra_emuls"
 453       targ_extra_libpath="$targ_extra_libpath $targ64_extra_libpath"
 454     fi
 455
 456     for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
 457         case " $all_emuls " in
 458         *" e${i}.o "*) ;;
 459         *)
 460           all_emuls="$all_emuls e${i}.o"
 461           eval result=\$tdir_$i
 462           test -z "$result" && result=$targ_alias
 463           TDIRS="$TDIRS
 464 tdir_$i=$result"
 465           case "${i}" in
 466           *elf*)
 467             elf_list_options=true
 468             ;;
 469           *)
 470             if $GREP "TEMPLATE_NAME=elf" ${srcdir}/emulparams/${i}.sh >/dev/null 2>/dev/null; then
 471               elf_list_options=true
 472             fi
 473             ;;
 474           esac
 475           if test "$elf_list_options" = "true"; then
 476             source_sh()
 477             {
 478               . $1
 479             }
 480             source_sh ${srcdir}/emulparams/${i}.sh
 481             if test x${GENERATE_SHLIB_SCRIPT} = xyes; then
 482               elf_shlib_list_options=true
 483             fi
 484             if test x${PLT_UNWIND} = xyes; then
 485               elf_plt_unwind_list_options=true
 486             fi
 487           fi
 488           ;;
 489         esac
 490     done
 491
 492     for i in $targ_emul $targ_extra_libpath; do
 493         case " $all_libpath " in
 494         *" ${i} "*) ;;
 495         *)
 496           if test -z "$all_libpath"; then
 497             all_libpath=${i}
 498           else
 499             all_libpath="$all_libpath ${i}"
 500           fi
 501           ;;
 502         esac
 503     done
 504
 505     for i in $targ_extra_ofiles; do
 506         case " $all_emul_extras " in
 507         *" ${i} "*) ;;
 508         *)
 509           all_emul_extras="$all_emul_extras ${i}"
 510           ;;
 511         esac
 512     done
 513
 514   fi
 515 done
 516
 517 if test x$ac_default_compressed_debug_sections = xyes ; then
 518   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 519 fi
 520
 521 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
 522                    [Default compression algorithm for --enable-compressed-debug-sections.])
 523
 524 if test "${ac_default_new_dtags}" = unset; then
 525   ac_default_new_dtags=0
 526 fi
 527 AC_DEFINE_UNQUOTED(DEFAULT_NEW_DTAGS,
 528   $ac_default_new_dtags,
 529   [Define to 1 if you want to set DT_RUNPATH instead of DT_RPATH by default.])
 530
 531 if test "${ac_default_ld_z_relro}" = unset; then
 532   ac_default_ld_z_relro=0
 533 fi
 534 AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_RELRO,
 535   $ac_default_ld_z_relro,
 536   [Define to 1 if you want to enable -z relro in ELF linker by default.])
 537
 538 ac_default_ld_textrel_check_warning=0
 539 case "${ac_default_ld_textrel_check}" in
 540   unset|no)
 541     ac_default_ld_textrel_check=textrel_check_none
 542     ;;
 543   yes|warning)
 544     ac_default_ld_textrel_check=textrel_check_warning
 545     ac_default_ld_textrel_check_warning=1
 546     ;;
 547   error)
 548     ac_default_ld_textrel_check=textrel_check_error
 549     ;;
 550 esac
 551 AC_DEFINE_UNQUOTED(DEFAULT_LD_TEXTREL_CHECK,
 552   $ac_default_ld_textrel_check,
 553   [The default method for DT_TEXTREL check in ELF linker.])
 554 AC_DEFINE_UNQUOTED(DEFAULT_LD_TEXTREL_CHECK_WARNING,
 555   $ac_default_ld_textrel_check_warning,
 556   [Define to 1 if DT_TEXTREL check is warning in ELF linker by default.])
 557
 558 if test "${ac_default_ld_z_separate_code}" = unset; then
 559   ac_default_ld_z_separate_code=0
 560 fi
 561 AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_SEPARATE_CODE,
 562   $ac_default_ld_z_separate_code,
 563   [Define to 1 if you want to enable -z separate-code in ELF linker by default.])
 564
 565
 566 AC_DEFINE_UNQUOTED(DEFAULT_LD_WARN_EXECSTACK,
 567   $ac_default_ld_warn_execstack,
 568   [Define to 1 if you want to enable --warn-execstack in ELF linker by default.])
 569
 570 AC_DEFINE_UNQUOTED(DEFAULT_LD_ERROR_EXECSTACK,
 571   $ac_default_ld_error_execstack,
 572   [Define to 1 if you want to turn executable stack warnings into errors by default.])
 573
 574 if test "${ac_default_ld_warn_rwx_segments}" = unset; then
 575   ac_default_ld_warn_rwx_segments=1
 576 fi
 577 AC_DEFINE_UNQUOTED(DEFAULT_LD_WARN_RWX_SEGMENTS,
 578   $ac_default_ld_warn_rwx_segments,
 579   [Define to 0 if you want to disable --warn-rwx-segments in ELF linker by default.])
 580
 581 AC_DEFINE_UNQUOTED(DEFAULT_LD_ERROR_RWX_SEGMENTS,
 582   $ac_default_ld_error_rwx_segments,
 583   [Define to 1 if you want to turn executable segment warnings into errors by default.])
 584
 585 if test "${ac_default_ld_default_execstack}" = unset; then
 586   ac_default_ld_default_execstack=1
 587 fi
 588 AC_DEFINE_UNQUOTED(DEFAULT_LD_EXECSTACK,
 589   $ac_default_ld_default_execstack,
 590   [Define to 0 if you want to disable the generation of an executable stack when a .note-GNU-stack section is missing.])
 591
 592
 593 if test "${ac_support_error_handling_script}" = unset; then
 594   ac_support_error_handling_script=1
 595 fi
 596 AC_DEFINE_UNQUOTED(SUPPORT_ERROR_HANDLING_SCRIPT,
 597   $ac_support_error_handling_script,
 598   [Define to 1 if you want to support the --error-handling-script command line option.])
 599
 600 AC_DEFINE_UNQUOTED([DEFAULT_EMIT_SYSV_HASH],
 601   [$ac_default_emit_sysv_hash],
 602   [Define to 1 if you want to emit sysv hash in the ELF linker by default.])
 603
 604 AC_DEFINE_UNQUOTED([DEFAULT_EMIT_GNU_HASH],
 605   [$ac_default_emit_gnu_hash],
 606   [Define to 1 if you want to emit gnu hash in the ELF linker by default.])
 607
 608 AC_SUBST(elf_list_options)
 609 AC_SUBST(elf_shlib_list_options)
 610 AC_SUBST(elf_plt_unwind_list_options)
 611 AC_SUBST(EMUL)
 612
 613 AC_SUBST(TDIRS)
 614 AM_SUBST_NOTMAKE(TDIRS)
 615
 616 if test x${all_targets} = xtrue; then
 617   if test x${enable_64_bit_bfd} = xyes; then
 618     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
 619     EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES) $(ALL_64_EMUL_EXTRA_OFILES)'
 620   else
 621     EMULATION_OFILES='$(ALL_EMULATIONS)'
 622     EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
 623   fi
 624 else
 625   EMULATION_OFILES=$all_emuls
 626   EMUL_EXTRA_OFILES=$all_emul_extras
 627 fi
 628 AC_SUBST(EMULATION_OFILES)
 629 AC_SUBST(EMUL_EXTRA_OFILES)
 630 AC_SUBST(LIB_PATH)
 631
 632 EMULATION_LIBPATH=$all_libpath
 633 AC_SUBST(EMULATION_LIBPATH)
 634
 635 if test x${enable_static} = xno; then
 636   TESTBFDLIB="-Wl,--rpath,../bfd/.libs ../bfd/.libs/libbfd.so"
 637   TESTCTFLIB="-Wl,--rpath,../libctf/.libs ../libctf/.libs/libctf.so"
 638   TESTSFRAMELIB="-Wl,--rpath,../libsframe/.libs ../libsframe/.libs/libsframe.so"
 639 else
 640   TESTBFDLIB="../bfd/.libs/libbfd.a"
 641   TESTCTFLIB="../libctf/.libs/libctf.a"
 642   TESTSFRAMELIB="../libsframe/.libs/libsframe.a"
 643 fi
 644 if test "${enable_libctf}" = no; then
 645     TESTCTFLIB=
 646 fi
 647 AC_SUBST(TESTBFDLIB)
 648 AC_SUBST(TESTCTFLIB)
 649 AC_SUBST(TESTSFRAMELIB)
 650
 651 target_vendor=${target_vendor=$host_vendor}
 652 case "$target_vendor" in
 653   hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
 654   *)  EXTRA_SHLIB_EXTENSION= ;;
 655 esac
 656
 657 case "$target_os" in
 658   lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
 659 esac
 660
 661 if test x${EXTRA_SHLIB_EXTENSION} != x ; then
 662   AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
 663    [Additional extension a shared object might have.])
 664 fi
 665
 666 AC_CONFIG_COMMANDS([default],
 667 [[
 668 case "$srcdir" in
 669   .) srcdirpre= ;;
 670   *) srcdirpre='$(srcdir)/' ;;
 671 esac
 672 POFILES=
 673 GMOFILES=
 674 for lang in dummy $OBSOLETE_ALL_LINGUAS; do
 675   if test $lang != dummy; then
 676     POFILES="$POFILES $srcdirpre$lang.po"
 677     GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
 678   fi
 679 done
 680 sed -e '/^SRC-POTFILES =/r po/SRC-POTFILES' \
 681     -e '/^BLD-POTFILES =/r po/BLD-POTFILES' \
 682     -e "s,@POFILES@,$POFILES," \
 683     -e "s,@GMOFILES@,$GMOFILES," \
 684     po/Makefile.in > po/Makefile]],[[]])
 685
 686 dnl Required by html, pdf, install-pdf and install-html
 687 AC_SUBST(datarootdir)
 688 AC_SUBST(docdir)
 689 AC_SUBST(htmldir)
 690 AC_SUBST(pdfdir)
 691
 692 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
 693 AC_OUTPUT
 694
 695 GNU_MAKE_JOBSERVER