gas/configure.ac

   1 dnl Process this file with autoconf to produce a configure script.
   2 dnl
   3 dnl And be careful when changing it!  If you must add tests with square
   4 dnl brackets, be sure changequote invocations surround it.
   5 dnl
   6 dnl   Copyright (C) 2012-2023 Free Software Foundation, Inc.
   7 dnl
   8 dnl This file is free software; you can redistribute it and/or modify
   9 dnl it under the terms of the GNU General Public License as published by
  10 dnl the Free Software Foundation; either version 3 of the License, or
  11 dnl (at your option) any later version.
  12 dnl
  13 dnl This program is distributed in the hope that it will be useful,
  14 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 dnl GNU General Public License for more details.
  17 dnl
  18 dnl You should have received a copy of the GNU General Public License
  19 dnl along with this program; see the file COPYING3.  If not see
  20 dnl <http://www.gnu.org/licenses/>.
  21 dnl
  22 dnl v2.5 needed for --bindir et al
  23 m4_include([../bfd/version.m4])
  24 AC_INIT([gas], BFD_VERSION)
  25 AC_CONFIG_SRCDIR(as.h)
  26
  27 dnl Autoconf 2.57 will find the aux dir without this.  However, unless
  28 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
  29 dnl gas/ instead of gas/../.
  30 AC_CONFIG_AUX_DIR(..)
  31 AC_CANONICAL_TARGET
  32
  33 AM_INIT_AUTOMAKE
  34 AM_SILENT_RULES([yes])
  35
  36 AC_PROG_CC
  37 AC_GNU_SOURCE
  38 AC_USE_SYSTEM_EXTENSIONS
  39
  40 LT_INIT
  41 ACX_LARGEFILE
  42 ACX_PROG_CMP_IGNORE_INITIAL
  43
  44 AC_ARG_ENABLE(targets,
  45 [  --enable-targets        alternative target configurations besides the primary],
  46 [case "${enableval}" in
  47   yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
  48             ;;
  49   no)       enable_targets= ;;
  50   *)        enable_targets=$enableval ;;
  51 esac])dnl
  52
  53 ac_checking=
  54 . ${srcdir}/../bfd/development.sh
  55 test "$development" = true && ac_checking=yes
  56 AC_ARG_ENABLE(checking,
  57 [  --enable-checking       enable run-time checks],
  58 [case "${enableval}" in
  59   no|none)  ac_checking= ;;
  60   *)        ac_checking=yes ;;
  61 esac])dnl
  62 if test x$ac_checking != x ; then
  63   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
  64 fi
  65
  66 # PR gas/19109
  67 # Decide the default method for compressing debug sections.
  68 ac_default_compressed_debug_sections=unset
  69 # Provide a configure time option to override our default.
  70 AC_ARG_ENABLE(compressed_debug_sections,
  71               AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
  72               [compress debug sections by default]),
  73 [case ,"${enableval}", in
  74   ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
  75   ,no, | ,none,)  ac_default_compressed_debug_sections=no ;;
  76   *)   ac_default_compressed_debug_sections=unset ;;
  77 esac])dnl
  78
  79 # Select default compression algorithm.
  80 ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_GABI_ZLIB
  81 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
  82               AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
  83               [Default compression algorithm for --enable-compressed-debug-sections.]),
  84 [case "${enableval}" in
  85    zstd) ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_ZSTD ;;
  86 esac])dnl
  87
  88 # PR gas/19520
  89 # Decide if x86 assembler should generate relax relocations.
  90 ac_default_x86_relax_relocations=unset
  91 # Provide a configure time option to override our default.
  92 AC_ARG_ENABLE(x86_relax_relocations,
  93               AS_HELP_STRING([--enable-x86-relax-relocations],
  94               [generate x86 relax relocations by default]),
  95 [case "${enableval}" in
  96   no)  ac_default_x86_relax_relocations=0 ;;
  97 esac])dnl
  98
  99 # Decide if ELF assembler should generate common symbols with the
 100 # STT_COMMON type.
 101 ac_default_elf_stt_common=unset
 102 # Provide a configure time option to override our default.
 103 AC_ARG_ENABLE(elf_stt_common,
 104               AS_HELP_STRING([--enable-elf-stt-common],
 105               [generate ELF common symbols with STT_COMMON type by default]),
 106 [case "${enableval}" in
 107   yes)  ac_default_elf_stt_common=1 ;;
 108 esac])dnl
 109
 110
 111 # Decide if the ELF assembler should default to generating
 112 # GNU Build notes if none are provided by the input.
 113 ac_default_generate_build_notes=0
 114 # Provide a configuration option to override the default.
 115 AC_ARG_ENABLE(generate_build_notes,
 116               AS_HELP_STRING([--enable-generate-build-notes],
 117               [generate GNU Build notes if none are provided by the input]),
 118 [case "${enableval}" in
 119   yes)  ac_default_generate_build_notes=1 ;;
 120   no)   ac_default_generate_build_notes=0 ;;
 121 esac])dnl
 122
 123 # Decide if the MIPS assembler should default to enable MIPS fix Loongson3
 124 # LLSC errata.
 125 ac_default_mips_fix_loongson3_llsc=unset
 126 # Provide a configuration option to override the default.
 127 AC_ARG_ENABLE(mips-fix-loongson3-llsc,
 128              AS_HELP_STRING([--enable-mips-fix-loongson3-llsc],
 129              [enable MIPS fix Loongson3 LLSC errata]),
 130 [case "${enableval}" in
 131   yes)  ac_default_mips_fix_loongson3_llsc=1 ;;
 132   no)   ac_default_mips_fix_loongson3_llsc=0 ;;
 133 esac])dnl
 134
 135 # Decide if the x86 ELF assembler should default to generating GNU x86
 136 # used ISA and feature properties.
 137 ac_default_generate_x86_used_note=unset
 138 # Provide a configuration option to override the default.
 139 AC_ARG_ENABLE(x86-used-note,
 140               AS_HELP_STRING([--enable-x86-used-note],
 141               [generate GNU x86 used ISA and feature properties]),
 142 [case "${enableval}" in
 143   yes)  ac_default_generate_x86_used_note=1 ;;
 144   no)   ac_default_generate_x86_used_note=0 ;;
 145 esac])dnl
 146
 147 # Decide if the RISC-V ELF assembler should default to generating attribute.
 148 ac_default_generate_riscv_attr=unset
 149 # Provide a configuration option to override the default.
 150 AC_ARG_ENABLE(default-riscv-attribute,
 151               AS_HELP_STRING([--enable-default-riscv-attribute],
 152               [generate RISC-V arch attribute by default]),
 153 [case "${enableval}" in
 154   yes)  ac_default_generate_riscv_attr=1 ;;
 155   no)   ac_default_generate_riscv_attr=0 ;;
 156 esac])dnl
 157
 158 using_cgen=no
 159
 160 AM_BINUTILS_WARNINGS
 161
 162 # Generate a header file
 163 AC_CONFIG_HEADERS(config.h:config.in)
 164
 165 dnl Option --with-cpu=TYPE allows configure type control of the default
 166 dnl cpu type within the assembler.  Currently only the ARC target
 167 dnl supports this feature, but others may be added in the future.
 168 AC_ARG_WITH(cpu,
 169             AS_HELP_STRING([--with-cpu=CPU],
 170             [default cpu variant is CPU (currently only supported on ARC)]),
 171             [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
 172                                 "${with_cpu}",
 173                                 [Target specific CPU.])],
 174             [])
 175
 176 # PR 14072
 177 AH_VERBATIM([00_CONFIG_H_CHECK],
 178 [/* Check that config.h is #included before system headers
 179    (this works only for glibc, but that should be enough).  */
 180 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
 181 #  error config.h must be #included before system headers
 182 #endif
 183 #define __CONFIG_H__ 1])
 184
 185 # If we are on a DOS filesystem, we must use gdb.ini rather than
 186 # .gdbinit.
 187 case "${host}" in
 188   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
 189     GDBINIT="gdb.ini"
 190     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
 191     ;;
 192   *)
 193     GDBINIT=".gdbinit"
 194     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
 195     ;;
 196 esac
 197 AC_SUBST(GDBINIT)
 198
 199 #We need this for the host.
 200 AC_C_BIGENDIAN
 201
 202 te_file=generic
 203
 204 # Makefile target for installing gas in $(tooldir)/bin.
 205 install_tooldir=install-exec-tooldir
 206
 207 canon_targets=""
 208 all_targets=no
 209 if test -n "$enable_targets" ; then
 210   for t in `echo $enable_targets | sed 's/,/ /g'`; do
 211     if test $t = "all"; then
 212       all_targets=yes
 213       continue
 214     fi
 215     result=`$ac_config_sub $t 2>/dev/null`
 216     if test -n "$result" ; then
 217       canon_targets="$canon_targets $result"
 218 #    else
 219 #      # Permit "all", etc.  We don't support it yet though.
 220 #      canon_targets="$canon_targets $t"
 221     fi
 222   done
 223   GAS_UNIQ(canon_targets)
 224 fi
 225
 226 emulations=""
 227
 228 for this_target in $target $canon_targets ; do
 229
 230     targ=${this_target}
 231     . ${srcdir}/configure.tgt
 232
 233     case ${target_cpu} in
 234       crisv32)
 235         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
 236                            [Default CRIS architecture.])
 237         ;;
 238     esac
 239
 240     if test ${this_target} = $target ; then
 241       target_cpu_type=${cpu_type}
 242     elif test ${target_cpu_type} != ${cpu_type} ; then
 243       continue
 244     fi
 245
 246     generic_target=${cpu_type}-${target_vendor}-${target_os}
 247     case ${generic_target} in
 248       i386-*-msdosdjgpp* \
 249       | i386-*-go32*)
 250         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 251         ;;
 252
 253       i386-*-linux-* | x86_64-*-linux-*)
 254         if test ${this_target} = $target \
 255            && test ${ac_default_generate_x86_used_note} = unset; then
 256           ac_default_generate_x86_used_note=1
 257         fi
 258         ;;
 259
 260       i386-*-solaris2 \
 261       | x86_64-*-solaris2 \
 262       | i386-*-solaris2.[[0-9]] \
 263       | i386-*-solaris2.1[[01]] \
 264       | x86_64-*-solaris2.1[[01]])
 265         if test ${this_target} = $target \
 266            && test ${ac_default_x86_relax_relocations} = unset; then
 267           ac_default_x86_relax_relocations=0
 268         fi
 269         ;;
 270
 271       microblaze*)
 272         ;;
 273
 274 changequote(,)dnl
 275       ppc-*-aix[5-9].*)
 276 changequote([,])dnl
 277         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 278                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 279         ;;
 280       ppc-*-solaris*)
 281         if test ${this_target} = $target; then
 282           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 283                     [Define if default target is PowerPC Solaris.])
 284         fi
 285         if test x${endian} = xbig; then
 286           AC_MSG_ERROR(Solaris must be configured little endian)
 287         fi
 288         ;;
 289     esac
 290
 291     if test ${this_target} = $target ; then
 292       endian_def=
 293       if test x${endian} = xbig; then
 294         endian_def=1
 295       elif test x${endian} = xlittle; then
 296         endian_def=0
 297       fi
 298       if test x${endian_def} != x; then
 299         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 300                            [Define as 1 if big endian.])
 301       fi
 302     fi
 303
 304 # Other random stuff.
 305
 306     case ${cpu_type} in
 307       mips)
 308         # Set mips_cpu to the name of the default CPU.
 309         case ${target_cpu} in
 310           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 311             mips_cpu=from-abi
 312             ;;
 313           mipsisa32 | mipsisa32el)
 314             mips_cpu=mips32
 315             ;;
 316           mipsisa32r2 | mipsisa32r2el)
 317             mips_cpu=mips32r2
 318             ;;
 319           mipsisa32r3 | mipsisa32r3el)
 320             mips_cpu=mips32r3
 321             ;;
 322           mipsisa32r5 | mipsisa32r5el)
 323             mips_cpu=mips32r5
 324             ;;
 325           mipsisa32r6 | mipsisa32r6el)
 326             mips_cpu=mips32r6
 327             ;;
 328           mipsisa64 | mipsisa64el)
 329             mips_cpu=mips64
 330             ;;
 331           mipsisa64r2 | mipsisa64r2el)
 332             mips_cpu=mips64r2
 333             ;;
 334           mipsisa64r3 | mipsisa64r3el)
 335             mips_cpu=mips64r3
 336             ;;
 337           mipsisa64r5 | mipsisa64r5el)
 338             mips_cpu=mips64r5
 339             ;;
 340           mipsisa64r6 | mipsisa64r6el)
 341             mips_cpu=mips64r6
 342             ;;
 343           mipstx39 | mipstx39el)
 344             mips_cpu=r3900
 345             ;;
 346           mips64vr | mips64vrel)
 347             mips_cpu=vr4100
 348             ;;
 349           mipsisa32r2* | mipsisa64r2*)
 350 changequote(,)dnl
 351             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 352 changequote([,])dnl
 353             ;;
 354           mipsisa32r6* | mipsisa64r6*)
 355 changequote(,)dnl
 356             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
 357 changequote([,])dnl
 358             ;;
 359           mips64* | mipsisa64* | mipsisa32*)
 360 changequote(,)dnl
 361             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 362 changequote([,])dnl
 363             ;;
 364           mips*)
 365 changequote(,)dnl
 366             mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
 367 changequote([,])dnl
 368             ;;
 369           *)
 370             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 371             ;;
 372         esac
 373         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 374         # binaries.  It's a GNU extension that some OSes don't understand.
 375         case ${target} in
 376           *-*-irix*)
 377             use_e_mips_abi_o32=0
 378             ;;
 379           *)
 380             use_e_mips_abi_o32=1
 381             ;;
 382         esac
 383         # Decide whether to generate 32-bit or 64-bit code by default.
 384         # Used to resolve -march=from-abi when an embedded ABI is selected.
 385         case ${target} in
 386           mips64*-*-* | mipsisa64*-*-*)
 387             mips_default_64bit=1
 388             ;;
 389           *)
 390             mips_default_64bit=0
 391             ;;
 392         esac
 393         # Decide which ABI to target by default.
 394         case ${target} in
 395           mips*64*-linux-gnuabi64)
 396             mips_default_abi=N64_ABI
 397             ;;
 398           mips*64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
 399           | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
 400             mips_default_abi=N32_ABI
 401             ;;
 402           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 403             mips_default_abi=O32_ABI
 404             ;;
 405           mips64*-openbsd*)
 406             mips_default_abi=N64_ABI
 407             ;;
 408           *)
 409             mips_default_abi=NO_ABI
 410             ;;
 411         esac
 412         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 413                            [Default CPU for MIPS targets. ])
 414         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 415                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 416         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 417                            [Generate 64-bit code by default on MIPS targets. ])
 418         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 419                            [Choose a default ABI for MIPS targets. ])
 420         ;;
 421     esac
 422
 423     # Do we need the opcodes library?
 424     case ${cpu_type} in
 425       vax | tic30 | i386 | arm)
 426         ;;
 427
 428       *)
 429         need_opcodes=yes
 430
 431         case "${enable_shared}" in
 432         yes) shared_opcodes=true ;;
 433         *opcodes*) shared_opcodes=true ;;
 434         *) shared_opcodes=false ;;
 435         esac
 436         ;;
 437     esac
 438
 439     # Any other special object files needed ?
 440     case ${cpu_type} in
 441
 442       bfin)
 443         for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
 444           case " $extra_objects " in
 445             *" $f "*) ;;
 446             *) extra_objects="$extra_objects $f" ;;
 447           esac
 448         done
 449         ;;
 450
 451       bpf)
 452         if test $this_target = $target ; then
 453           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 454         fi
 455         using_cgen=yes
 456         ;;
 457       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
 458         using_cgen=yes
 459         ;;
 460
 461       loongarch)
 462         for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
 463           case " $extra_objects " in
 464             *" $f "*) ;;
 465             *) extra_objects="$extra_objects $f" ;;
 466           esac
 467         done
 468         # --target=loongarch[32|64]-*-*.  */
 469         if test $this_target = $target ; then
 470           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 471         fi
 472         ;;
 473
 474       m32c)
 475         using_cgen=yes
 476         ;;
 477       frv)
 478         using_cgen=yes
 479         ;;
 480       m68k)
 481         f=config/m68k-parse.o
 482         case " $extra_objects " in
 483           *" $f "*) ;;
 484           *) extra_objects="$extra_objects $f" ;;
 485         esac
 486         ;;
 487
 488       mep)
 489         using_cgen=yes
 490         ;;
 491
 492       mips)
 493         for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
 494           case " $extra_objects " in
 495             *" $f "*) ;;
 496             *) extra_objects="$extra_objects $f" ;;
 497           esac
 498         done
 499         ;;
 500
 501       mt)
 502         using_cgen=yes
 503         ;;
 504
 505       nds32)
 506         # setup NDS32_LINUX_TOOLCHAIN definition
 507         if test "linux" = $em; then
 508           AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
 509             [Define value for nds32_linux_toolchain])
 510         else
 511           AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
 512             [Define default value for nds32_linux_toolchain])
 513         fi
 514
 515         # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
 516         # based on arch_name.
 517         AC_MSG_CHECKING(for default configuration of --with-arch)
 518         if test "x${with_arch}" != x; then
 519           case ${with_arch} in
 520             v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
 521               AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
 522                                  [Define value for nds32_arch_name])
 523               ;;
 524             *)
 525               AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
 526               ;;
 527           esac
 528         fi
 529         AC_MSG_RESULT($with_arch)
 530
 531         # Decide features one by one.
 532         AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
 533         if test "x${enable_dx_regs}" = xyes; then
 534           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
 535                     [Define value for nds32_dx_regs])
 536         else
 537           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
 538                     [Define default value for nds32_dx_regs])
 539         fi
 540         AC_MSG_RESULT($enable_dx_regs)
 541
 542         AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
 543         if test "x${enable_perf_ext}" = xno; then
 544           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
 545                     [Define value for nds32_perf_ext])
 546         else
 547           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
 548                     [Define default value for nds32_perf_ext])
 549         fi
 550         AC_MSG_RESULT($enable_perf_ext)
 551
 552         AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
 553         if test "x${enable_perf_ext2}" = xno; then
 554           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
 555                     [Define value for nds32_perf_ext2])
 556         else
 557           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
 558                     [Define default value for nds32_perf_ext2])
 559         fi
 560         AC_MSG_RESULT($enable_perf_ext2)
 561
 562         AC_MSG_CHECKING(for default configuration of --enable-string-ext)
 563         if test "x${enable_string_ext}" = xno; then
 564           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
 565                     [Define value for nds32_string_ext])
 566         else
 567           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
 568                     [Define default value for nds32_string_ext])
 569         fi
 570         AC_MSG_RESULT($enable_string_ext)
 571
 572         AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
 573         if test "x${enable_audio_ext}" = xno; then
 574           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
 575                     [Define value for nds32_audio_ext])
 576         else
 577           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
 578                     [Define default value for nds32_audio_ext])
 579         fi
 580         AC_MSG_RESULT($enable_audio_ext)
 581
 582         AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
 583         if test "x${enable_dsp_ext}" = xno; then
 584           AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
 585                     [Define value for nds32_dsp_ext])
 586         else
 587           AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
 588                     [Define default value for nds32_dsp_ext])
 589         fi
 590         AC_MSG_RESULT($enable_dsp_ext)
 591
 592         AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
 593         if test "x${enable_zol_ext}" = xno; then
 594           AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
 595                     [Define value for nds32_zol_ext])
 596         else
 597           AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
 598                     [Define default value for nds32_zol_ext])
 599         fi
 600         AC_MSG_RESULT($enable_zol_ext)
 601         ;;
 602
 603       aarch64 | i386 | s390 | sparc)
 604         if test $this_target = $target ; then
 605           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 606         fi
 607         ;;
 608
 609       riscv)
 610         # --target=riscv[32|64]-*-*.  */
 611         if test $this_target = $target ; then
 612           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 613         fi
 614
 615         # --with-arch=<value>.  The syntax of <value> is same as Gas option -march.
 616         AC_MSG_CHECKING(for default configuration of --with-arch)
 617         if test "x${with_arch}" != x; then
 618         AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
 619                            [Define default value for RISC-V -march.])
 620         fi
 621         AC_MSG_RESULT($with_arch)
 622
 623         # --with-isa-spec=[2.2|20190608|20191213].
 624         AC_MSG_CHECKING(for default configuration of --with-isa-spec)
 625         if test "x${with_isa_spec}" != x; then
 626           AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
 627                              [Define default value for RISC-V -misa-spec.])
 628         fi
 629         AC_MSG_RESULT($with_isa_spec)
 630
 631         # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
 632         AC_MSG_CHECKING(for default configuration of --with-priv-spec)
 633         if test "x${with_priv_spec}" != x; then
 634           AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
 635                              [Define default value for RISC-V -mpriv-spec])
 636         fi
 637         AC_MSG_RESULT($with_priv_spec)
 638         ;;
 639
 640       rl78)
 641         f=config/rl78-parse.o
 642         case " $extra_objects " in
 643           *" $f "*) ;;
 644           *) extra_objects="$extra_objects $f" ;;
 645         esac
 646         ;;
 647
 648       rx)
 649         f=config/rx-parse.o
 650         case " $extra_objects " in
 651           *" $f "*) ;;
 652           *) extra_objects="$extra_objects $f" ;;
 653         esac
 654         ;;
 655
 656       xstormy16)
 657         using_cgen=yes
 658         ;;
 659
 660       xtensa)
 661         f=config/xtensa-relax.o
 662         case " $extra_objects " in
 663           *" $f "*) ;;
 664           *) extra_objects="$extra_objects $f" ;;
 665         esac
 666         ;;
 667
 668       *)
 669         ;;
 670     esac
 671
 672     if test $using_cgen = yes ; then
 673         f=cgen.o
 674         case " $extra_objects " in
 675           *" $f "*) ;;
 676           *) extra_objects="$extra_objects $f" ;;
 677         esac
 678     fi
 679
 680 # See if we really can support this configuration with the emulation code.
 681
 682     if test $this_target = $target ; then
 683       obj_format=$fmt
 684       te_file=$em
 685     fi
 686
 687     case ${te_file} in
 688       vms)
 689         f=config/te-vms.o
 690         case " $extra_objects " in
 691           *" $f "*) ;;
 692           *) extra_objects="$extra_objects $f" ;;
 693         esac ;;
 694     esac
 695
 696 # From target name and format, produce a list of supported emulations.
 697
 698     case ${generic_target}-${fmt} in
 699       mips-*-*-*)       case "$endian" in
 700                         big)    emulation="mipsbelf mipslelf mipself" ;;
 701                         *)      emulation="mipslelf mipsbelf mipself" ;;
 702                         esac ;;
 703       # i386-pc-pe-coff != i386-pc-coff.
 704       i386-*-pe-coff)   ;;
 705       # Uncommenting the next line will turn on support for i386 AOUT
 706       # for the default linux configuration
 707       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 708       #
 709       i386-*-aout)      emulation="i386aout" ;;
 710       i386-*-coff)      emulation="i386coff" ;;
 711       i386-*-elf)       emulation="i386elf" ;;
 712
 713       # Always all formats.  The first stated emulation becomes the default.
 714       cris-*-*aout*)    emulation="crisaout criself" ;;
 715       cris-*-*)         emulation="criself crisaout" ;;
 716     esac
 717
 718     emulations="$emulations $emulation"
 719
 720 done
 721
 722 if test ${ac_default_x86_relax_relocations} = unset; then
 723   ac_default_x86_relax_relocations=1
 724 fi
 725 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
 726   $ac_default_x86_relax_relocations,
 727   [Define to 1 if you want to generate x86 relax relocations by default.])
 728
 729 if test ${ac_default_elf_stt_common} = unset; then
 730   ac_default_elf_stt_common=0
 731 fi
 732 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
 733   $ac_default_elf_stt_common,
 734   [Define to 1 if you want to generate ELF common symbols with the
 735    STT_COMMON type by default.])
 736
 737 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
 738   $ac_default_generate_build_notes,
 739   [Define to 1 if you want to generate GNU Build attribute notes
 740    by default, if none are contained in the input.])
 741
 742 if test ${ac_default_generate_x86_used_note} = unset; then
 743   ac_default_generate_x86_used_note=0
 744 fi
 745 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
 746   $ac_default_generate_x86_used_note,
 747   [Define to 1 if you want to generate GNU x86 used ISA and feature
 748    properties by default.])
 749
 750 if test ${ac_default_generate_riscv_attr} = unset; then
 751   ac_default_generate_riscv_attr=1
 752 fi
 753
 754 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
 755   $ac_default_generate_riscv_attr,
 756   [Define to 1 if you want to generate RISC-V arch attribute by default.])
 757
 758 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
 759   ac_default_mips_fix_loongson3_llsc=0
 760 fi
 761 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
 762   $ac_default_mips_fix_loongson3_llsc,
 763   [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
 764
 765 if test x$ac_default_compressed_debug_sections = xyes ; then
 766   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 767 fi
 768
 769 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
 770                    [Default compression algorithm for --enable-compressed-debug-sections.])
 771
 772 # Turn on all targets if possible
 773 if test ${all_targets} = "yes"; then
 774   case ${target_cpu_type} in
 775   i386)
 776     case ${obj_format} in
 777     aout)
 778       emulations="$emulations i386coff i386elf"
 779       ;;
 780     coff)
 781       emulations="$emulations i386aout i386elf"
 782     ;;
 783     elf)
 784       emulations="$emulations i386aout i386coff"
 785       ;;
 786     esac
 787   ;;
 788   x86_64)
 789     case ${obj_format} in
 790     aout)
 791       emulations="$emulations i386coff i386elf"
 792       ;;
 793     coff)
 794       emulations="$emulations i386aout i386elf"
 795     ;;
 796     elf)
 797       emulations="$emulations i386aout i386coff"
 798       ;;
 799     esac
 800   ;;
 801   esac
 802 fi
 803
 804 # PE code has way too many macros tweaking behaviour
 805 case ${te_file} in
 806   pe*) emulations="" ;;
 807 esac
 808
 809 # Assign floating point type.  Most processors with FP support
 810 # IEEE FP.  On those that don't support FP at all, usually IEEE
 811 # is emulated.
 812 case ${target_cpu} in
 813   vax | pdp11 ) atof=vax ;;
 814   *)            atof=ieee ;;
 815 esac
 816
 817 case "${obj_format}" in
 818   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 819 esac
 820
 821 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 822 cgen_cpu_prefix=""
 823 if test $using_cgen = yes ; then
 824   case ${target_cpu} in
 825     or1knd)
 826        cgen_cpu_prefix=or1k ;;
 827     *) cgen_cpu_prefix=${target_cpu} ;;
 828   esac
 829   AC_SUBST(cgen_cpu_prefix)
 830   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 831 fi
 832
 833 dnl
 834 dnl Make sure the desired support files exist.
 835 dnl
 836
 837 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 838   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 839 fi
 840
 841 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 842   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 843 fi
 844
 845 # Some COFF configurations want these random other flags set.
 846 case ${obj_format} in
 847   coff)
 848     case ${target_cpu_type} in
 849       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 850       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 851     esac
 852     ;;
 853 esac
 854
 855 # Getting this done right is going to be a bitch.  Each configuration specified
 856 # with --enable-targets=... should be checked for environment, format, cpu
 857 # setting.
 858 #
 859 # For each configuration, the necessary object file support code must be linked
 860 # in.  This might be only one, it might be up to four.  The necessary emulation
 861 # code needs to be provided, too.
 862 #
 863 # And then there's "--enable-targets=all"....
 864 #
 865 # For now, just always do it for MIPS ELF configurations.  Sigh.
 866
 867 formats="${obj_format}"
 868 emfiles=""
 869 EMULATIONS=""
 870 GAS_UNIQ(emulations)
 871 for em in . $emulations ; do
 872   case $em in
 873     .)  continue ;;
 874     mipsbelf | mipslelf | mipself)
 875         fmt=elf   file=mipself ;;
 876     *coff)
 877         fmt=coff  file=$em ;;
 878     *aout)
 879         fmt=aout file=$em ;;
 880     *elf)
 881         fmt=elf file=$em ;;
 882   esac
 883   formats="$formats $fmt"
 884   emfiles="$emfiles config/e-$file.o"
 885   EMULATIONS="$EMULATIONS &$em,"
 886 done
 887 GAS_UNIQ(formats)
 888 GAS_UNIQ(emfiles)
 889 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 890   for fmt in $formats ; do
 891     case $fmt in
 892       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 893       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 894       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 895       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 896       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 897       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 898     esac
 899     extra_objects="$extra_objects config/obj-$fmt.o"
 900   done
 901   obj_format=multi
 902 fi
 903 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 904   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 905   # e-mipself has more than one emulation per file, e-i386* has just one at the
 906   # moment.  If only one emulation is specified, then don't define
 907   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 908   case "${obj_format}${emfiles}" in
 909     multi* | *mipself*)
 910       extra_objects="$extra_objects $emfiles"
 911       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 912   esac
 913 fi
 914 AC_SUBST(extra_objects)
 915 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 916 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 917                    [Default emulation.])
 918
 919 reject_dev_configs=yes
 920
 921 case ${reject_dev_configs}-${dev} in
 922   yes-yes) # Oops.
 923     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 924     ;;
 925 esac
 926
 927 AC_SUBST(target_cpu_type)
 928 AC_SUBST(obj_format)
 929 AC_SUBST(te_file)
 930 AC_SUBST(install_tooldir)
 931 AC_SUBST(atof)
 932 dnl AC_SUBST(emulation)
 933
 934 # do we need the opcodes library?
 935 case "${need_opcodes}" in
 936 yes)
 937   OPCODES_LIB=../opcodes/libopcodes.la
 938   ;;
 939 esac
 940
 941 AC_SUBST(OPCODES_LIB)
 942
 943 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 944 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 945 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 946 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 947 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 948
 949 AC_PROG_YACC
 950 AM_PROG_LEX
 951
 952 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
 953 ZW_GNU_GETTEXT_SISTER_DIR
 954 AM_PO_SUBDIRS
 955
 956 AM_MAINTAINER_MODE
 957 AM_CONDITIONAL(GENINSRC_NEVER, false)
 958 AC_EXEEXT
 959
 960 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
 961
 962 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 963 # people who are not cross-compiling but are compiling cross-assemblers.
 964 AC_MSG_CHECKING(whether compiling a cross-assembler)
 965 if test "${host}" = "${target}"; then
 966   cross_gas=no
 967 else
 968   cross_gas=yes
 969   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 970 fi
 971 AC_MSG_RESULT($cross_gas)
 972
 973 AC_CHECK_FUNCS(strsignal)
 974
 975 AM_LC_MESSAGES
 976
 977 # do we need the math library?
 978 case "${need_libm}" in
 979 yes)
 980   LT_LIB_M
 981   AC_SUBST(LIBM)
 982   ;;
 983 esac
 984
 985 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 986 # enough, but on some of those systems, the assert macro relies on requoting
 987 # working properly!
 988 GAS_WORKING_ASSERT
 989
 990 # On some systems, the system header files may not declare malloc, realloc,
 991 # and free.  There are places where gas needs these functions to have been
 992 # declared -- such as when taking their addresses.
 993 gas_test_headers="
 994 #ifdef HAVE_MEMORY_H
 995 #include <memory.h>
 996 #endif
 997 #include <string.h>
 998 #include <stdlib.h>
 999 #ifdef HAVE_UNISTD_H
1000 #include <unistd.h>
1001 #endif
1002 "
1003
1004 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
1005 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
1006 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
1007 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
1008 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
1009 if test $gas_cv_decl_getopt_unistd_h = yes; then
1010   AC_DEFINE([HAVE_DECL_GETOPT], 1,
1011             [Is the prototype for getopt in <unistd.h> in the expected format?])
1012 fi
1013
1014 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1015 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1016
1017 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1018
1019 BFD_BINARY_FOPEN
1020
1021 # Link in zlib/zstd if we can.  This allows us to write compressed debug sections.
1022 AM_ZLIB
1023 AC_ZSTD
1024
1025 # Support for VMS timestamps via cross compile
1026
1027 if test "$ac_cv_header_time_h" = yes; then
1028   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1029 fi
1030
1031 if test "$ac_cv_header_sys_stat_h" = yes; then
1032     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1033     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1034 fi
1035
1036
1037 dnl Required for html, pdf, install-pdf and install-html targets.
1038 AC_SUBST(datarootdir)
1039 AC_SUBST(docdir)
1040 AC_SUBST(htmldir)
1041 AC_SUBST(pdfdir)
1042
1043 dnl This must come last.
1044
1045 dnl We used to make symlinks to files in the source directory, but now
1046 dnl we just use the right name for .c files, and create .h files in
1047 dnl the build directory which include the right .h file.  Make sure
1048 dnl the old symlinks don't exist, so that a reconfigure in an existing
1049 dnl directory behaves reasonably.
1050
1051 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1052 AC_CONFIG_COMMANDS([default],
1053 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1054  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1055  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1056  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1057  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1058  if test "x$cgen_cpu_prefix" != x ; then
1059    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1060  fi],
1061 [target_cpu_type=${target_cpu_type}
1062  cgen_cpu_prefix=${cgen_cpu_prefix}
1063  obj_format=${obj_format}
1064  te_file=${te_file}])
1065
1066 AC_OUTPUT
1067
1068 GNU_MAKE_JOBSERVER