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) 2012-2019 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 AC_ISC_POSIX
  33
  34 AM_INIT_AUTOMAKE
  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=yes
  54 if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
  55   ac_checking=
  56 fi
  57 AC_ARG_ENABLE(checking,
  58 [  --enable-checking       enable run-time checks],
  59 [case "${enableval}" in
  60   no|none)  ac_checking= ;;
  61   *)        ac_checking=yes ;;
  62 esac])dnl
  63 if test x$ac_checking != x ; then
  64   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
  65 fi
  66
  67 # PR gas/19109
  68 # Decide the default method for compressing debug sections.
  69 ac_default_compressed_debug_sections=unset
  70 # Provide a configure time option to override our default.
  71 AC_ARG_ENABLE(compressed_debug_sections,
  72               AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
  73               [compress debug sections by default]),
  74 [case ,"${enableval}", in
  75   ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
  76   ,no, | ,none,)  ac_default_compressed_debug_sections=no ;;
  77   *)   ac_default_compressed_debug_sections=unset ;;
  78 esac])dnl
  79
  80 # PR gas/19520
  81 # Decide if x86 assembler should generate relax relocations.
  82 ac_default_x86_relax_relocations=unset
  83 # Provide a configure time option to override our default.
  84 AC_ARG_ENABLE(x86_relax_relocations,
  85               AS_HELP_STRING([--enable-x86-relax-relocations],
  86               [generate x86 relax relocations by default]),
  87 [case "${enableval}" in
  88   no)  ac_default_x86_relax_relocations=0 ;;
  89 esac])dnl
  90
  91 # Decide if ELF assembler should generate common symbols with the
  92 # STT_COMMON type.
  93 ac_default_elf_stt_common=unset
  94 # Provide a configure time option to override our default.
  95 AC_ARG_ENABLE(elf_stt_common,
  96               AS_HELP_STRING([--enable-elf-stt-common],
  97               [generate ELF common symbols with STT_COMMON type by default]),
  98 [case "${enableval}" in
  99   yes)  ac_default_elf_stt_common=1 ;;
 100 esac])dnl
 101
 102
 103 # Decide if the ELF assembler should default to generating
 104 # GNU Build notes if none are provided by the input.
 105 ac_default_generate_build_notes=0
 106 # Provide a configuration option to override the default.
 107 AC_ARG_ENABLE(generate_build_notes,
 108               AS_HELP_STRING([--enable-generate-build-notes],
 109               [generate GNU Build notes if none are provided by the input]),
 110 [case "${enableval}" in
 111   yes)  ac_default_generate_build_notes=1 ;;
 112   no)   ac_default_generate_build_notes=0 ;;
 113 esac])dnl
 114
 115
 116 # Decide if the x86 ELF assembler should default to generating GNU x86
 117 # used ISA and feature properties.
 118 ac_default_generate_x86_used_note=unset
 119 # Provide a configuration option to override the default.
 120 AC_ARG_ENABLE(x86-used-note,
 121               AS_HELP_STRING([--enable-x86-used-note],
 122               [generate GNU x86 used ISA and feature properties]),
 123 [case "${enableval}" in
 124   yes)  ac_default_generate_x86_used_note=1 ;;
 125   no)   ac_default_generate_x86_used_note=0 ;;
 126 esac])dnl
 127
 128 # Decide if the RISC-V ELF assembler should default to generating attribute.
 129 ac_default_generate_riscv_attr=unset
 130 # Provide a configuration option to override the default.
 131 AC_ARG_ENABLE(default-riscv-attribute,
 132               AS_HELP_STRING([--enable-default-riscv-attribute],
 133               [generate RISC-V arch attribute by default]),
 134 [case "${enableval}" in
 135   yes)  ac_default_generate_riscv_attr=1 ;;
 136   no)   ac_default_generate_riscv_attr=0 ;;
 137 esac])dnl
 138
 139 using_cgen=no
 140
 141 AM_BINUTILS_WARNINGS
 142
 143 # Generate a header file
 144 AC_CONFIG_HEADERS(config.h:config.in)
 145
 146 dnl Option --with-cpu=TYPE allows configure type control of the default
 147 dnl cpu type within the assembler.  Currently only the ARC target
 148 dnl supports this feature, but others may be added in the future.
 149 AC_ARG_WITH(cpu,
 150             AS_HELP_STRING([--with-cpu=CPU],
 151             [default cpu variant is CPU (currently only supported on ARC)]),
 152             [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
 153                                 "${with_cpu}",
 154                                 [Target specific CPU.])],
 155             [])
 156
 157 # PR 14072
 158 AH_VERBATIM([00_CONFIG_H_CHECK],
 159 [/* Check that config.h is #included before system headers
 160    (this works only for glibc, but that should be enough).  */
 161 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
 162 #  error config.h must be #included before system headers
 163 #endif
 164 #define __CONFIG_H__ 1])
 165
 166 # If we are on a DOS filesystem, we must use gdb.ini rather than
 167 # .gdbinit.
 168 case "${host}" in
 169   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
 170     GDBINIT="gdb.ini"
 171     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
 172     ;;
 173   *)
 174     GDBINIT=".gdbinit"
 175     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
 176     ;;
 177 esac
 178 AC_SUBST(GDBINIT)
 179
 180 #We need this for the host.
 181 AC_C_BIGENDIAN
 182
 183 te_file=generic
 184
 185 # Makefile target for installing gas in $(tooldir)/bin.
 186 install_tooldir=install-exec-tooldir
 187
 188 canon_targets=""
 189 all_targets=no
 190 if test -n "$enable_targets" ; then
 191   for t in `echo $enable_targets | sed 's/,/ /g'`; do
 192     if test $t = "all"; then
 193       all_targets=yes
 194       continue
 195     fi
 196     result=`$ac_config_sub $t 2>/dev/null`
 197     if test -n "$result" ; then
 198       canon_targets="$canon_targets $result"
 199 #    else
 200 #      # Permit "all", etc.  We don't support it yet though.
 201 #      canon_targets="$canon_targets $t"
 202     fi
 203   done
 204   GAS_UNIQ(canon_targets)
 205 fi
 206
 207 emulations=""
 208
 209 for this_target in $target $canon_targets ; do
 210
 211     targ=${this_target}
 212     . ${srcdir}/configure.tgt
 213
 214     case ${target_cpu} in
 215       crisv32)
 216         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
 217                            [Default CRIS architecture.])
 218         ;;
 219     esac
 220
 221     if test ${this_target} = $target ; then
 222       target_cpu_type=${cpu_type}
 223     elif test ${target_cpu_type} != ${cpu_type} ; then
 224       continue
 225     fi
 226
 227     generic_target=${cpu_type}-${target_vendor}-${target_os}
 228     case ${generic_target} in
 229       i386-*-msdosdjgpp* \
 230       | i386-*-go32* \
 231       | i386-go32-rtems*)
 232         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 233         ;;
 234
 235       i386-*-solaris2 \
 236       | x86_64-*-solaris2 \
 237       | i386-*-solaris2.[[0-9]] \
 238       | i386-*-solaris2.1[[01]] \
 239       | x86_64-*-solaris2.1[[01]])
 240         if test ${this_target} = $target \
 241            && test ${ac_default_x86_relax_relocations} = unset; then
 242           ac_default_x86_relax_relocations=0
 243         fi
 244         ;;
 245
 246       microblaze*)
 247         ;;
 248
 249 changequote(,)dnl
 250       ppc-*-aix[5-9].*)
 251 changequote([,])dnl
 252         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 253                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 254         ;;
 255       ppc-*-solaris*)
 256         if test ${this_target} = $target; then
 257           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 258                     [Define if default target is PowerPC Solaris.])
 259         fi
 260         if test x${endian} = xbig; then
 261           AC_MSG_ERROR(Solaris must be configured little endian)
 262         fi
 263         ;;
 264     esac
 265
 266     if test ${this_target} = $target ; then
 267       endian_def=
 268       if test x${endian} = xbig; then
 269         endian_def=1
 270       elif test x${endian} = xlittle; then
 271         endian_def=0
 272       fi
 273       if test x${endian_def} != x; then
 274         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 275                            [Define as 1 if big endian.])
 276       fi
 277     fi
 278
 279 # Other random stuff.
 280
 281     case ${cpu_type} in
 282       mips)
 283         # Set mips_cpu to the name of the default CPU.
 284         case ${target_cpu} in
 285           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 286             mips_cpu=from-abi
 287             ;;
 288           mipsisa32 | mipsisa32el)
 289             mips_cpu=mips32
 290             ;;
 291           mipsisa32r2 | mipsisa32r2el)
 292             mips_cpu=mips32r2
 293             ;;
 294           mipsisa32r3 | mipsisa32r3el)
 295             mips_cpu=mips32r3
 296             ;;
 297           mipsisa32r5 | mipsisa32r5el)
 298             mips_cpu=mips32r5
 299             ;;
 300           mipsisa32r6 | mipsisa32r6el)
 301             mips_cpu=mips32r6
 302             ;;
 303           mipsisa64 | mipsisa64el)
 304             mips_cpu=mips64
 305             ;;
 306           mipsisa64r2 | mipsisa64r2el)
 307             mips_cpu=mips64r2
 308             ;;
 309           mipsisa64r3 | mipsisa64r3el)
 310             mips_cpu=mips64r3
 311             ;;
 312           mipsisa64r5 | mipsisa64r5el)
 313             mips_cpu=mips64r5
 314             ;;
 315           mipsisa64r6 | mipsisa64r6el)
 316             mips_cpu=mips64r6
 317             ;;
 318           mipstx39 | mipstx39el)
 319             mips_cpu=r3900
 320             ;;
 321           mips64vr | mips64vrel)
 322             mips_cpu=vr4100
 323             ;;
 324           mipsisa32r2* | mipsisa64r2*)
 325 changequote(,)dnl
 326             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 327 changequote([,])dnl
 328             ;;
 329           mipsisa32r6* | mipsisa64r6*)
 330 changequote(,)dnl
 331             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
 332 changequote([,])dnl
 333             ;;
 334           mips64* | mipsisa64* | mipsisa32*)
 335 changequote(,)dnl
 336             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 337 changequote([,])dnl
 338             ;;
 339           mips*)
 340 changequote(,)dnl
 341             mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
 342 changequote([,])dnl
 343             ;;
 344           *)
 345             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 346             ;;
 347         esac
 348         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 349         # binaries.  It's a GNU extension that some OSes don't understand.
 350         case ${target} in
 351           *-*-irix*)
 352             use_e_mips_abi_o32=0
 353             ;;
 354           *)
 355             use_e_mips_abi_o32=1
 356             ;;
 357         esac
 358         # Decide whether to generate 32-bit or 64-bit code by default.
 359         # Used to resolve -march=from-abi when an embedded ABI is selected.
 360         case ${target} in
 361           mips64*-*-* | mipsisa64*-*-*)
 362             mips_default_64bit=1
 363             ;;
 364           *)
 365             mips_default_64bit=0
 366             ;;
 367         esac
 368         # Decide which ABI to target by default.
 369         case ${target} in
 370           mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
 371           | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
 372             mips_default_abi=N32_ABI
 373             ;;
 374           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 375             mips_default_abi=O32_ABI
 376             ;;
 377           mips64*-openbsd*)
 378             mips_default_abi=N64_ABI
 379             ;;
 380           *)
 381             mips_default_abi=NO_ABI
 382             ;;
 383         esac
 384         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 385                            [Default CPU for MIPS targets. ])
 386         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 387                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 388         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 389                            [Generate 64-bit code by default on MIPS targets. ])
 390         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 391                            [Choose a default ABI for MIPS targets. ])
 392         ;;
 393     esac
 394
 395     # Do we need the opcodes library?
 396     case ${cpu_type} in
 397       vax | tic30)
 398         ;;
 399
 400       *)
 401         need_opcodes=yes
 402
 403         case "${enable_shared}" in
 404         yes) shared_opcodes=true ;;
 405         *opcodes*) shared_opcodes=true ;;
 406         *) shared_opcodes=false ;;
 407         esac
 408         ;;
 409     esac
 410
 411     # Any other special object files needed ?
 412     case ${cpu_type} in
 413
 414       bfin)
 415         for f in bfin-parse.o bfin-lex-wrapper.o; do
 416           case " $extra_objects " in
 417             *" $f "*) ;;
 418             *) extra_objects="$extra_objects $f" ;;
 419           esac
 420         done
 421         ;;
 422
 423       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
 424         using_cgen=yes
 425         ;;
 426
 427       m32c)
 428         using_cgen=yes
 429         ;;
 430       frv)
 431         using_cgen=yes
 432         ;;
 433       m68k)
 434         f=m68k-parse.o
 435         case " $extra_objects " in
 436           *" $f "*) ;;
 437           *) extra_objects="$extra_objects $f" ;;
 438         esac
 439         ;;
 440
 441       mep)
 442         using_cgen=yes
 443         ;;
 444
 445       mips)
 446         for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
 447           case " $extra_objects " in
 448             *" $f "*) ;;
 449             *) extra_objects="$extra_objects $f" ;;
 450           esac
 451         done
 452         ;;
 453
 454       mt)
 455         using_cgen=yes
 456         ;;
 457
 458       nds32)
 459         # setup NDS32_LINUX_TOOLCHAIN definition
 460         if test "linux" = $em; then
 461           AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
 462             [Define value for nds32_linux_toolchain])
 463         else
 464           AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
 465             [Define default value for nds32_linux_toolchain])
 466         fi
 467
 468         # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
 469         # based on arch_name.
 470         AC_MSG_CHECKING(for default configuration of --with-arch)
 471         if test "x${with_arch}" != x; then
 472           case ${with_arch} in
 473             v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
 474               AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
 475                                  [Define value for nds32_arch_name])
 476               ;;
 477             *)
 478               AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
 479               ;;
 480           esac
 481         fi
 482         AC_MSG_RESULT($with_arch)
 483
 484         # Decide features one by one.
 485         AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
 486         if test "x${enable_dx_regs}" = xyes; then
 487           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
 488                     [Define value for nds32_dx_regs])
 489         else
 490           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
 491                     [Define default value for nds32_dx_regs])
 492         fi
 493         AC_MSG_RESULT($enable_dx_regs)
 494
 495         AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
 496         if test "x${enable_perf_ext}" = xno; then
 497           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
 498                     [Define value for nds32_perf_ext])
 499         else
 500           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
 501                     [Define default value for nds32_perf_ext])
 502         fi
 503         AC_MSG_RESULT($enable_perf_ext)
 504
 505         AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
 506         if test "x${enable_perf_ext2}" = xno; then
 507           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
 508                     [Define value for nds32_perf_ext2])
 509         else
 510           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
 511                     [Define default value for nds32_perf_ext2])
 512         fi
 513         AC_MSG_RESULT($enable_perf_ext2)
 514
 515         AC_MSG_CHECKING(for default configuration of --enable-string-ext)
 516         if test "x${enable_string_ext}" = xno; then
 517           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
 518                     [Define value for nds32_string_ext])
 519         else
 520           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
 521                     [Define default value for nds32_string_ext])
 522         fi
 523         AC_MSG_RESULT($enable_string_ext)
 524
 525         AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
 526         if test "x${enable_audio_ext}" = xno; then
 527           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
 528                     [Define value for nds32_audio_ext])
 529         else
 530           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
 531                     [Define default value for nds32_audio_ext])
 532         fi
 533         AC_MSG_RESULT($enable_audio_ext)
 534
 535         AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
 536         if test "x${enable_dsp_ext}" = xno; then
 537           AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
 538                     [Define value for nds32_dsp_ext])
 539         else
 540           AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
 541                     [Define default value for nds32_dsp_ext])
 542         fi
 543         AC_MSG_RESULT($enable_dsp_ext)
 544
 545         AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
 546         if test "x${enable_zol_ext}" = xno; then
 547           AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
 548                     [Define value for nds32_zol_ext])
 549         else
 550           AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
 551                     [Define default value for nds32_zol_ext])
 552         fi
 553         AC_MSG_RESULT($enable_zol_ext)
 554         ;;
 555
 556       aarch64 | i386 | riscv | s390 | sparc)
 557         if test $this_target = $target ; then
 558           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 559         fi
 560         ;;
 561
 562       rl78)
 563         f=rl78-parse.o
 564         case " $extra_objects " in
 565           *" $f "*) ;;
 566           *) extra_objects="$extra_objects $f" ;;
 567         esac
 568         ;;
 569
 570       rx)
 571         f=rx-parse.o
 572         case " $extra_objects " in
 573           *" $f "*) ;;
 574           *) extra_objects="$extra_objects $f" ;;
 575         esac
 576         ;;
 577
 578       xstormy16)
 579         using_cgen=yes
 580         ;;
 581
 582       xc16x)
 583         using_cgen=yes
 584         ;;
 585
 586       xtensa)
 587         f=config/xtensa-relax.o
 588         case " $extra_objects " in
 589           *" $f "*) ;;
 590           *) extra_objects="$extra_objects $f" ;;
 591         esac
 592         ;;
 593
 594       *)
 595         ;;
 596     esac
 597
 598     if test $using_cgen = yes ; then
 599         f=cgen.o
 600         case " $extra_objects " in
 601           *" $f "*) ;;
 602           *) extra_objects="$extra_objects $f" ;;
 603         esac
 604     fi
 605
 606 # See if we really can support this configuration with the emulation code.
 607
 608     if test $this_target = $target ; then
 609       obj_format=$fmt
 610       te_file=$em
 611     fi
 612
 613     case ${te_file} in
 614       vms)
 615         f=config/te-vms.o
 616         case " $extra_objects " in
 617           *" $f "*) ;;
 618           *) extra_objects="$extra_objects $f" ;;
 619         esac ;;
 620     esac
 621
 622 # From target name and format, produce a list of supported emulations.
 623
 624     case ${generic_target}-${fmt} in
 625       mips-*-*-*)       case "$endian" in
 626                         big)    emulation="mipsbelf mipslelf mipself" ;;
 627                         *)      emulation="mipslelf mipsbelf mipself" ;;
 628                         esac ;;
 629       # i386-pc-pe-coff != i386-pc-coff.
 630       i386-*-pe-coff)   ;;
 631       # Uncommenting the next line will turn on support for i386 AOUT
 632       # for the default linux configuration
 633       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 634       #
 635       i386-*-aout)      emulation="i386aout" ;;
 636       i386-*-coff)      emulation="i386coff" ;;
 637       i386-*-elf)       emulation="i386elf" ;;
 638
 639       # Always all formats.  The first stated emulation becomes the default.
 640       cris-*-*aout*)    emulation="crisaout criself" ;;
 641       cris-*-*)         emulation="criself crisaout" ;;
 642     esac
 643
 644     emulations="$emulations $emulation"
 645
 646 done
 647
 648 if test ${ac_default_x86_relax_relocations} = unset; then
 649   ac_default_x86_relax_relocations=1
 650 fi
 651 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
 652   $ac_default_x86_relax_relocations,
 653   [Define to 1 if you want to generate x86 relax relocations by default.])
 654
 655 if test ${ac_default_elf_stt_common} = unset; then
 656   ac_default_elf_stt_common=0
 657 fi
 658 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
 659   $ac_default_elf_stt_common,
 660   [Define to 1 if you want to generate ELF common symbols with the
 661    STT_COMMON type by default.])
 662
 663 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
 664   $ac_default_generate_build_notes,
 665   [Define to 1 if you want to generate GNU Build attribute notes
 666    by default, if none are contained in the input.])
 667
 668 if test ${ac_default_generate_x86_used_note} = unset; then
 669   ac_default_generate_x86_used_note=0
 670 fi
 671 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
 672   $ac_default_generate_x86_used_note,
 673   [Define to 1 if you want to generate GNU x86 used ISA and feature
 674    properties by default.])
 675
 676 if test ${ac_default_generate_riscv_attr} = unset; then
 677     case ${target_os} in
 678       elf)
 679         ac_default_generate_riscv_attr=1
 680         ;;
 681       *)
 682         ac_default_generate_riscv_attr=0
 683         ;;
 684   esac
 685 fi
 686
 687 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
 688   $ac_default_generate_riscv_attr,
 689   [Define to 1 if you want to generate RISC-V arch attribute by default.])
 690
 691 if test x$ac_default_compressed_debug_sections = xyes ; then
 692   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 693 fi
 694
 695 # Turn on all targets if possible
 696 if test ${all_targets} = "yes"; then
 697   case ${target_cpu_type} in
 698   i386)
 699     case ${obj_format} in
 700     aout)
 701       emulations="$emulations i386coff i386elf"
 702       ;;
 703     coff)
 704       emulations="$emulations i386aout i386elf"
 705     ;;
 706     elf)
 707       emulations="$emulations i386aout i386coff"
 708       ;;
 709     esac
 710   ;;
 711   x86_64)
 712     case ${obj_format} in
 713     aout)
 714       emulations="$emulations i386coff i386elf"
 715       ;;
 716     coff)
 717       emulations="$emulations i386aout i386elf"
 718     ;;
 719     elf)
 720       emulations="$emulations i386aout i386coff"
 721       ;;
 722     esac
 723   ;;
 724   esac
 725 fi
 726
 727 # PE code has way too many macros tweaking behaviour
 728 case ${te_file} in
 729   pe*) emulations="" ;;
 730 esac
 731
 732 # Assign floating point type.  Most processors with FP support
 733 # IEEE FP.  On those that don't support FP at all, usually IEEE
 734 # is emulated.
 735 case ${target_cpu} in
 736   vax | pdp11 ) atof=vax ;;
 737   *)            atof=ieee ;;
 738 esac
 739
 740 case "${obj_format}" in
 741   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 742 esac
 743
 744 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 745 cgen_cpu_prefix=""
 746 if test $using_cgen = yes ; then
 747   case ${target_cpu} in
 748     or1knd)
 749        cgen_cpu_prefix=or1k ;;
 750     *) cgen_cpu_prefix=${target_cpu} ;;
 751   esac
 752   AC_SUBST(cgen_cpu_prefix)
 753   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 754 fi
 755
 756 dnl
 757 dnl Make sure the desired support files exist.
 758 dnl
 759
 760 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 761   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 762 fi
 763
 764 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 765   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 766 fi
 767
 768 # Some COFF configurations want these random other flags set.
 769 case ${obj_format} in
 770   coff)
 771     case ${target_cpu_type} in
 772       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 773       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 774     esac
 775     ;;
 776 esac
 777
 778 # Getting this done right is going to be a bitch.  Each configuration specified
 779 # with --enable-targets=... should be checked for environment, format, cpu
 780 # setting.
 781 #
 782 # For each configuration, the necessary object file support code must be linked
 783 # in.  This might be only one, it might be up to four.  The necessary emulation
 784 # code needs to be provided, too.
 785 #
 786 # And then there's "--enable-targets=all"....
 787 #
 788 # For now, just always do it for MIPS ELF configurations.  Sigh.
 789
 790 formats="${obj_format}"
 791 emfiles=""
 792 EMULATIONS=""
 793 GAS_UNIQ(emulations)
 794 for em in . $emulations ; do
 795   case $em in
 796     .)  continue ;;
 797     mipsbelf | mipslelf | mipself)
 798         fmt=elf   file=mipself ;;
 799     *coff)
 800         fmt=coff  file=$em ;;
 801     *aout)
 802         fmt=aout file=$em ;;
 803     *elf)
 804         fmt=elf file=$em ;;
 805   esac
 806   formats="$formats $fmt"
 807   emfiles="$emfiles config/e-$file.o"
 808   EMULATIONS="$EMULATIONS &$em,"
 809 done
 810 GAS_UNIQ(formats)
 811 GAS_UNIQ(emfiles)
 812 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 813   for fmt in $formats ; do
 814     case $fmt in
 815       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 816       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 817       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 818       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 819       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 820       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 821     esac
 822     extra_objects="$extra_objects config/obj-$fmt.o"
 823   done
 824   obj_format=multi
 825 fi
 826 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 827   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 828   # e-mipself has more than one emulation per file, e-i386* has just one at the
 829   # moment.  If only one emulation is specified, then don't define
 830   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 831   case "${obj_format}${emfiles}" in
 832     multi* | *mipself*)
 833       extra_objects="$extra_objects $emfiles"
 834       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 835   esac
 836 fi
 837 AC_SUBST(extra_objects)
 838 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 839 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 840                    [Default emulation.])
 841
 842 reject_dev_configs=yes
 843
 844 case ${reject_dev_configs}-${dev} in
 845   yes-yes) # Oops.
 846     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 847     ;;
 848 esac
 849
 850 AC_SUBST(target_cpu_type)
 851 AC_SUBST(obj_format)
 852 AC_SUBST(te_file)
 853 AC_SUBST(install_tooldir)
 854 AC_SUBST(atof)
 855 dnl AC_SUBST(emulation)
 856
 857 # do we need the opcodes library?
 858 case "${need_opcodes}" in
 859 yes)
 860   OPCODES_LIB=../opcodes/libopcodes.la
 861   ;;
 862 esac
 863
 864 AC_SUBST(OPCODES_LIB)
 865
 866 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 867 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 868 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 869 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 870 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 871
 872 AC_PROG_YACC
 873 AM_PROG_LEX
 874
 875 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
 876 ZW_GNU_GETTEXT_SISTER_DIR
 877 AM_PO_SUBDIRS
 878
 879 AM_MAINTAINER_MODE
 880 AM_CONDITIONAL(GENINSRC_NEVER, false)
 881 AC_EXEEXT
 882
 883 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
 884 ACX_HEADER_STRING
 885
 886 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 887 # people who are not cross-compiling but are compiling cross-assemblers.
 888 AC_MSG_CHECKING(whether compiling a cross-assembler)
 889 if test "${host}" = "${target}"; then
 890   cross_gas=no
 891 else
 892   cross_gas=yes
 893   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 894 fi
 895 AC_MSG_RESULT($cross_gas)
 896
 897 dnl ansidecl.h will deal with const
 898 dnl AC_C_CONST
 899 AC_FUNC_ALLOCA
 900 AC_C_INLINE
 901
 902 # VMS doesn't have unlink.
 903 AC_CHECK_FUNCS(unlink remove, break)
 904 AC_CHECK_FUNCS(sbrk setlocale)
 905 AC_CHECK_FUNCS(strsignal)
 906
 907 AM_LC_MESSAGES
 908
 909 # do we need the math library?
 910 case "${need_libm}" in
 911 yes)
 912   LT_LIB_M
 913   AC_SUBST(LIBM)
 914   ;;
 915 esac
 916
 917 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 918 # enough, but on some of those systems, the assert macro relies on requoting
 919 # working properly!
 920 GAS_WORKING_ASSERT
 921
 922 # On some systems, the system header files may not declare malloc, realloc,
 923 # and free.  There are places where gas needs these functions to have been
 924 # declared -- such as when taking their addresses.
 925 gas_test_headers="
 926 #ifdef HAVE_MEMORY_H
 927 #include <memory.h>
 928 #endif
 929 #ifdef HAVE_STRING_H
 930 #include <string.h>
 931 #else
 932 #ifdef HAVE_STRINGS_H
 933 #include <strings.h>
 934 #endif
 935 #endif
 936 #ifdef HAVE_STDLIB_H
 937 #include <stdlib.h>
 938 #endif
 939 #ifdef HAVE_UNISTD_H
 940 #include <unistd.h>
 941 #endif
 942 "
 943
 944 # Does errno.h declare errno, or do we have to add a separate declaration
 945 # for it?
 946 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 947 #ifdef HAVE_ERRNO_H
 948 #include <errno.h>
 949 #endif
 950 ])
 951
 952 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 953 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 954 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 955 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 956 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 957 if test $gas_cv_decl_getopt_unistd_h = yes; then
 958   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 959             [Is the prototype for getopt in <unistd.h> in the expected format?])
 960 fi
 961
 962 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 963 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 964 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 965 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 966 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 967 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 968
 969 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
 970
 971 BFD_BINARY_FOPEN
 972
 973 # Link in zlib if we can.  This allows us to write compressed debug sections.
 974 AM_ZLIB
 975
 976 # Support for VMS timestamps via cross compile
 977
 978 if test "$ac_cv_header_time_h" = yes; then
 979   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 980 fi
 981
 982 if test "$ac_cv_header_sys_stat_h" = yes; then
 983     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 984     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 985 fi
 986
 987
 988 dnl Required for html, pdf, install-pdf and install-html targets.
 989 AC_SUBST(datarootdir)
 990 AC_SUBST(docdir)
 991 AC_SUBST(htmldir)
 992 AC_SUBST(pdfdir)
 993
 994 dnl This must come last.
 995
 996 dnl We used to make symlinks to files in the source directory, but now
 997 dnl we just use the right name for .c files, and create .h files in
 998 dnl the build directory which include the right .h file.  Make sure
 999 dnl the old symlinks don't exist, so that a reconfigure in an existing
1000 dnl directory behaves reasonably.
1001
1002 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
1003 AC_CONFIG_COMMANDS([default],
1004 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1005  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1006  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1007  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1008  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1009  if test "x$cgen_cpu_prefix" != x ; then
1010    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1011  fi],
1012 [target_cpu_type=${target_cpu_type}
1013  cgen_cpu_prefix=${cgen_cpu_prefix}
1014  obj_format=${obj_format}
1015  te_file=${te_file}])
1016
1017 AC_OUTPUT