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) 2012-2018 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 AC_PREREQ(2.59)
  24 m4_include([../bfd/version.m4])
  25 AC_INIT([gas], BFD_VERSION)
  26 AC_CONFIG_SRCDIR(as.h)
  27
  28 dnl Autoconf 2.57 will find the aux dir without this.  However, unless
  29 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
  30 dnl gas/ instead of gas/../.
  31 AC_CONFIG_AUX_DIR(..)
  32 AC_CANONICAL_TARGET
  33 AC_ISC_POSIX
  34
  35 AM_INIT_AUTOMAKE
  36
  37 AC_PROG_CC
  38 AC_GNU_SOURCE
  39 AC_USE_SYSTEM_EXTENSIONS
  40
  41 LT_INIT
  42 ACX_LARGEFILE
  43 ACX_PROG_CMP_IGNORE_INITIAL
  44
  45 AC_ARG_ENABLE(targets,
  46 [  --enable-targets        alternative target configurations besides the primary],
  47 [case "${enableval}" in
  48   yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
  49             ;;
  50   no)       enable_targets= ;;
  51   *)        enable_targets=$enableval ;;
  52 esac])dnl
  53
  54 ac_checking=yes
  55 if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
  56   ac_checking=
  57 fi
  58 AC_ARG_ENABLE(checking,
  59 [  --enable-checking       enable run-time checks],
  60 [case "${enableval}" in
  61   no|none)  ac_checking= ;;
  62   *)        ac_checking=yes ;;
  63 esac])dnl
  64 if test x$ac_checking != x ; then
  65   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
  66 fi
  67
  68 # PR gas/19109
  69 # Decide the default method for compressing debug sections.
  70 ac_default_compressed_debug_sections=unset
  71 # Provide a configure time option to override our default.
  72 AC_ARG_ENABLE(compressed_debug_sections,
  73               AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
  74               [compress debug sections by default]),
  75 [case ,"${enableval}", in
  76   ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
  77   ,no, | ,none,)  ac_default_compressed_debug_sections=no ;;
  78   *)   ac_default_compressed_debug_sections=unset ;;
  79 esac])dnl
  80
  81 # PR gas/19520
  82 # Decide if x86 assembler should generate relax relocations.
  83 ac_default_x86_relax_relocations=unset
  84 # Provide a configure time option to override our default.
  85 AC_ARG_ENABLE(x86_relax_relocations,
  86               AS_HELP_STRING([--enable-x86-relax-relocations],
  87               [generate x86 relax relocations by default]),
  88 [case "${enableval}" in
  89   no)  ac_default_x86_relax_relocations=0 ;;
  90 esac])dnl
  91
  92 # Decide if ELF assembler should generate common symbols with the
  93 # STT_COMMON type.
  94 ac_default_elf_stt_common=unset
  95 # Provide a configure time option to override our default.
  96 AC_ARG_ENABLE(elf_stt_common,
  97               AS_HELP_STRING([--enable-elf-stt-common],
  98               [generate ELF common symbols with STT_COMMON type by default]),
  99 [case "${enableval}" in
 100   yes)  ac_default_elf_stt_common=1 ;;
 101 esac])dnl
 102
 103 using_cgen=no
 104
 105 AM_BINUTILS_WARNINGS
 106
 107 # Generate a header file
 108 AC_CONFIG_HEADERS(config.h:config.in)
 109
 110 dnl Option --with-cpu=TYPE allows configure type control of the default
 111 dnl cpu type within the assembler.  Currently only the ARC target
 112 dnl supports this feature, but others may be added in the future.
 113 AC_ARG_WITH(cpu,
 114             AS_HELP_STRING([--with-cpu=CPU],
 115             [default cpu variant is CPU (currently only supported on ARC)]),
 116             [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
 117                                 "${with_cpu}",
 118                                 [Target specific CPU.])],
 119             [])
 120
 121 # PR 14072
 122 AH_VERBATIM([00_CONFIG_H_CHECK],
 123 [/* Check that config.h is #included before system headers
 124    (this works only for glibc, but that should be enough).  */
 125 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
 126 #  error config.h must be #included before system headers
 127 #endif
 128 #define __CONFIG_H__ 1])
 129
 130 # If we are on a DOS filesystem, we must use gdb.ini rather than
 131 # .gdbinit.
 132 case "${host}" in
 133   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
 134     GDBINIT="gdb.ini"
 135     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
 136     ;;
 137   *)
 138     GDBINIT=".gdbinit"
 139     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
 140     ;;
 141 esac
 142 AC_SUBST(GDBINIT)
 143
 144 #We need this for the host.  BOUT header is in host order.
 145 AC_C_BIGENDIAN
 146
 147 te_file=generic
 148
 149 # Makefile target for installing gas in $(tooldir)/bin.
 150 install_tooldir=install-exec-tooldir
 151
 152 canon_targets=""
 153 all_targets=no
 154 if test -n "$enable_targets" ; then
 155   for t in `echo $enable_targets | sed 's/,/ /g'`; do
 156     if test $t = "all"; then
 157       all_targets=yes
 158       continue
 159     fi
 160     result=`$ac_config_sub $t 2>/dev/null`
 161     if test -n "$result" ; then
 162       canon_targets="$canon_targets $result"
 163 #    else
 164 #      # Permit "all", etc.  We don't support it yet though.
 165 #      canon_targets="$canon_targets $t"
 166     fi
 167   done
 168   GAS_UNIQ(canon_targets)
 169 fi
 170
 171 emulations=""
 172
 173 for this_target in $target $canon_targets ; do
 174
 175     targ=${this_target}
 176     . ${srcdir}/configure.tgt
 177
 178     case ${target_cpu} in
 179       crisv32)
 180         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
 181                            [Default CRIS architecture.])
 182         ;;
 183     esac
 184
 185     if test ${this_target} = $target ; then
 186       target_cpu_type=${cpu_type}
 187     elif test ${target_cpu_type} != ${cpu_type} ; then
 188       continue
 189     fi
 190
 191     generic_target=${cpu_type}-${target_vendor}-${target_os}
 192     case ${generic_target} in
 193       i386-*-sco3.2v5*)
 194         if test ${this_target} = $target; then
 195           AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
 196         fi
 197         ;;
 198
 199       i386-*-msdosdjgpp* \
 200       | i386-*-go32* \
 201       | i386-go32-rtems*)
 202         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 203         ;;
 204
 205       i386-*-solaris2 \
 206       | x86_64-*-solaris2 \
 207       | i386-*-solaris2.[[0-9]] \
 208       | i386-*-solaris2.1[[01]] \
 209       | x86_64-*-solaris2.1[[01]])
 210         if test ${this_target} = $target \
 211            && test ${ac_default_x86_relax_relocations} = unset; then
 212           ac_default_x86_relax_relocations=0
 213         fi
 214         ;;
 215
 216       i860-*-*)
 217         AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
 218         ;;
 219
 220       microblaze*)
 221         ;;
 222
 223 changequote(,)dnl
 224       ppc-*-aix[5-9].*)
 225 changequote([,])dnl
 226         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 227                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 228         ;;
 229       ppc-*-solaris*)
 230         if test ${this_target} = $target; then
 231           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 232                     [Define if default target is PowerPC Solaris.])
 233         fi
 234         if test x${endian} = xbig; then
 235           AC_MSG_ERROR(Solaris must be configured little endian)
 236         fi
 237         ;;
 238
 239       sh*-*-symbianelf*)
 240         AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
 241         ;;
 242     esac
 243
 244     if test ${this_target} = $target ; then
 245       endian_def=
 246       if test x${endian} = xbig; then
 247         endian_def=1
 248       elif test x${endian} = xlittle; then
 249         endian_def=0
 250       fi
 251       if test x${endian_def} != x; then
 252         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 253                            [Define as 1 if big endian.])
 254       fi
 255     fi
 256
 257 # Other random stuff.
 258
 259     case ${cpu_type} in
 260       mips)
 261         # Set mips_cpu to the name of the default CPU.
 262         case ${target_cpu} in
 263           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 264             mips_cpu=from-abi
 265             ;;
 266           mipsisa32 | mipsisa32el)
 267             mips_cpu=mips32
 268             ;;
 269           mipsisa32r2 | mipsisa32r2el)
 270             mips_cpu=mips32r2
 271             ;;
 272           mipsisa32r3 | mipsisa32r3el)
 273             mips_cpu=mips32r3
 274             ;;
 275           mipsisa32r5 | mipsisa32r5el)
 276             mips_cpu=mips32r5
 277             ;;
 278           mipsisa32r6 | mipsisa32r6el)
 279             mips_cpu=mips32r6
 280             ;;
 281           mipsisa64 | mipsisa64el)
 282             mips_cpu=mips64
 283             ;;
 284           mipsisa64r2 | mipsisa64r2el)
 285             mips_cpu=mips64r2
 286             ;;
 287           mipsisa64r3 | mipsisa64r3el)
 288             mips_cpu=mips64r3
 289             ;;
 290           mipsisa64r5 | mipsisa64r5el)
 291             mips_cpu=mips64r5
 292             ;;
 293           mipsisa64r6 | mipsisa64r6el)
 294             mips_cpu=mips64r6
 295             ;;
 296           mipstx39 | mipstx39el)
 297             mips_cpu=r3900
 298             ;;
 299           mips64vr | mips64vrel)
 300             mips_cpu=vr4100
 301             ;;
 302           mipsisa32r2* | mipsisa64r2*)
 303 changequote(,)dnl
 304             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 305 changequote([,])dnl
 306             ;;
 307           mipsisa32r6* | mipsisa64r6*)
 308 changequote(,)dnl
 309             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
 310 changequote([,])dnl
 311             ;;
 312           mips64* | mipsisa64* | mipsisa32*)
 313 changequote(,)dnl
 314             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 315 changequote([,])dnl
 316             ;;
 317           mips*)
 318 changequote(,)dnl
 319             mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
 320 changequote([,])dnl
 321             ;;
 322           *)
 323             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 324             ;;
 325         esac
 326         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 327         # binaries.  It's a GNU extension that some OSes don't understand.
 328         case ${target} in
 329           *-*-irix*)
 330             use_e_mips_abi_o32=0
 331             ;;
 332           *)
 333             use_e_mips_abi_o32=1
 334             ;;
 335         esac
 336         # Decide whether to generate 32-bit or 64-bit code by default.
 337         # Used to resolve -march=from-abi when an embedded ABI is selected.
 338         case ${target} in
 339           mips64*-*-* | mipsisa64*-*-*)
 340             mips_default_64bit=1
 341             ;;
 342           *)
 343             mips_default_64bit=0
 344             ;;
 345         esac
 346         # Decide which ABI to target by default.
 347         case ${target} in
 348           mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
 349           | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
 350             mips_default_abi=N32_ABI
 351             ;;
 352           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 353             mips_default_abi=O32_ABI
 354             ;;
 355           mips64*-openbsd*)
 356             mips_default_abi=N64_ABI
 357             ;;
 358           *)
 359             mips_default_abi=NO_ABI
 360             ;;
 361         esac
 362         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 363                            [Default CPU for MIPS targets. ])
 364         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 365                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 366         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 367                            [Generate 64-bit code by default on MIPS targets. ])
 368         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 369                            [Choose a default ABI for MIPS targets. ])
 370         ;;
 371     esac
 372
 373     # Do we need the opcodes library?
 374     case ${cpu_type} in
 375       vax | tic30)
 376         ;;
 377
 378       *)
 379         need_opcodes=yes
 380
 381         case "${enable_shared}" in
 382         yes) shared_opcodes=true ;;
 383         *opcodes*) shared_opcodes=true ;;
 384         *) shared_opcodes=false ;;
 385         esac
 386         ;;
 387     esac
 388
 389     # Any other special object files needed ?
 390     case ${cpu_type} in
 391
 392       bfin)
 393         echo ${extra_objects} | grep -s "bfin-parse.o"
 394         if test $? -ne 0 ; then
 395           extra_objects="$extra_objects bfin-parse.o"
 396         fi
 397
 398         echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
 399         if test $? -ne 0 ; then
 400           extra_objects="$extra_objects bfin-lex-wrapper.o"
 401         fi
 402         ;;
 403
 404       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
 405         using_cgen=yes
 406         ;;
 407
 408       m32c)
 409         using_cgen=yes
 410         ;;
 411       frv)
 412         using_cgen=yes
 413         ;;
 414       m68k)
 415         case ${extra_objects} in
 416         *m68k-parse.o*) ;;
 417         *) extra_objects="$extra_objects m68k-parse.o" ;;
 418         esac
 419         ;;
 420
 421       mep)
 422         using_cgen=yes
 423         ;;
 424
 425       mips)
 426         echo ${extra_objects} | grep -s "itbl-parse.o"
 427         if test $? -ne 0 ; then
 428           extra_objects="$extra_objects itbl-parse.o"
 429         fi
 430
 431         echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
 432         if test $? -ne 0 ; then
 433           extra_objects="$extra_objects itbl-lex-wrapper.o"
 434         fi
 435
 436         echo ${extra_objects} | grep -s "itbl-ops.o"
 437         if test $? -ne 0 ; then
 438           extra_objects="$extra_objects itbl-ops.o"
 439         fi
 440         ;;
 441
 442       mt)
 443         using_cgen=yes
 444         ;;
 445
 446       nds32)
 447         # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
 448         # based on arch_name.
 449         AC_MSG_CHECKING(for default configuration of --with-arch)
 450         if test "x${with_arch}" != x; then
 451           case ${with_arch} in
 452             v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
 453               AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
 454                                  [Define value for nds32_arch_name])
 455               ;;
 456             *)
 457               AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
 458               ;;
 459           esac
 460         fi
 461         AC_MSG_RESULT($with_arch)
 462
 463         # Decide features one by one.
 464         AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
 465         if test "x${enable_dx_regs}" = xyes; then
 466           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
 467                     [Define value for nds32_dx_regs])
 468         else
 469           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
 470                     [Define default value for nds32_dx_regs])
 471         fi
 472         AC_MSG_RESULT($enable_dx_regs)
 473
 474         AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
 475         if test "x${enable_perf_ext}" = xno; then
 476           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
 477                     [Define value for nds32_perf_ext])
 478         else
 479           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
 480                     [Define default value for nds32_perf_ext])
 481         fi
 482         AC_MSG_RESULT($enable_perf_ext)
 483
 484         AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
 485         if test "x${enable_perf_ext2}" = xno; then
 486           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
 487                     [Define value for nds32_perf_ext2])
 488         else
 489           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
 490                     [Define default value for nds32_perf_ext2])
 491         fi
 492         AC_MSG_RESULT($enable_perf_ext2)
 493
 494         AC_MSG_CHECKING(for default configuration of --enable-string-ext)
 495         if test "x${enable_string_ext}" = xno; then
 496           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
 497                     [Define value for nds32_string_ext])
 498         else
 499           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
 500                     [Define default value for nds32_string_ext])
 501         fi
 502         AC_MSG_RESULT($enable_string_ext)
 503
 504         AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
 505         if test "x${enable_audio_ext}" = xno; then
 506           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
 507                     [Define value for nds32_audio_ext])
 508         else
 509           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
 510                     [Define default value for nds32_audio_ext])
 511         fi
 512         AC_MSG_RESULT($enable_audio_ext)
 513         ;;
 514
 515       aarch64 | i386 | riscv | s390 | sparc)
 516         if test $this_target = $target ; then
 517           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 518         fi
 519         ;;
 520
 521       rl78)
 522         echo ${extra_objects} | grep -s "rl78-parse.o"
 523         if test $? -ne 0 ; then
 524           extra_objects="$extra_objects rl78-parse.o"
 525         fi
 526         ;;
 527
 528       rx)
 529         echo ${extra_objects} | grep -s "rx-parse.o"
 530         if test $? -ne 0 ; then
 531           extra_objects="$extra_objects rx-parse.o"
 532         fi
 533         ;;
 534
 535       xstormy16)
 536         using_cgen=yes
 537         ;;
 538
 539       xc16x)
 540         using_cgen=yes
 541         ;;
 542
 543       xtensa)
 544         echo ${extra_objects} | grep -s "xtensa-relax.o"
 545         if test $? -ne 0 ; then
 546           extra_objects="$extra_objects xtensa-relax.o"
 547         fi
 548         ;;
 549
 550       *)
 551         ;;
 552     esac
 553
 554     if test $using_cgen = yes ; then
 555         case "x${extra_objects}" in
 556         *cgen.o*) ;;
 557         *) extra_objects="$extra_objects cgen.o" ;;
 558         esac
 559     fi
 560
 561 # See if we really can support this configuration with the emulation code.
 562
 563     if test $this_target = $target ; then
 564       obj_format=$fmt
 565       te_file=$em
 566     fi
 567
 568    case ${te_file} in
 569       vms) extra_objects="$extra_objects te-vms.o" ;;
 570    esac
 571
 572 # From target name and format, produce a list of supported emulations.
 573
 574     case ${generic_target}-${fmt} in
 575       mips-*-*-*)       case "$endian" in
 576                         big)    emulation="mipsbelf mipslelf mipself" ;;
 577                         *)      emulation="mipslelf mipsbelf mipself" ;;
 578                         esac ;;
 579       # i386-pc-pe-coff != i386-pc-coff.
 580       i386-*-pe-coff)   ;;
 581       # Uncommenting the next line will turn on support for i386 AOUT
 582       # for the default linux configuration
 583       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 584       #
 585       i386-*-aout)      emulation="i386aout" ;;
 586       i386-*-coff)      emulation="i386coff" ;;
 587       i386-*-elf)       emulation="i386elf" ;;
 588
 589       # Always all formats.  The first stated emulation becomes the default.
 590       cris-*-*aout*)    emulation="crisaout criself" ;;
 591       cris-*-*)         emulation="criself crisaout" ;;
 592     esac
 593
 594     emulations="$emulations $emulation"
 595
 596 done
 597
 598 if test ${ac_default_x86_relax_relocations} = unset; then
 599   ac_default_x86_relax_relocations=1
 600 fi
 601 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
 602   $ac_default_x86_relax_relocations,
 603   [Define to 1 if you want to generate x86 relax relocations by default.])
 604
 605 if test ${ac_default_elf_stt_common} = unset; then
 606   ac_default_elf_stt_common=0
 607 fi
 608 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
 609   $ac_default_elf_stt_common,
 610   [Define to 1 if you want to generate ELF common symbols with the
 611    STT_COMMON type by default.])
 612
 613 if test x$ac_default_compressed_debug_sections = xyes ; then
 614   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 615 fi
 616
 617 # Turn on all targets if possible
 618 if test ${all_targets} = "yes"; then
 619   case ${target_cpu_type} in
 620   i386)
 621     case ${obj_format} in
 622     aout)
 623       emulations="$emulations i386coff i386elf"
 624       ;;
 625     coff)
 626       emulations="$emulations i386aout i386elf"
 627     ;;
 628     elf)
 629       emulations="$emulations i386aout i386coff"
 630       ;;
 631     esac
 632   ;;
 633   x86_64)
 634     case ${obj_format} in
 635     aout)
 636       emulations="$emulations i386coff i386elf"
 637       ;;
 638     coff)
 639       emulations="$emulations i386aout i386elf"
 640     ;;
 641     elf)
 642       emulations="$emulations i386aout i386coff"
 643       ;;
 644     esac
 645   ;;
 646   esac
 647 fi
 648
 649 # PE code has way too many macros tweaking behaviour
 650 case ${te_file} in
 651   pe*) emulations="" ;;
 652 esac
 653
 654 # Assign floating point type.  Most processors with FP support
 655 # IEEE FP.  On those that don't support FP at all, usually IEEE
 656 # is emulated.
 657 case ${target_cpu} in
 658   vax | pdp11 ) atof=vax ;;
 659   *)            atof=ieee ;;
 660 esac
 661
 662 case "${obj_format}" in
 663   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 664 esac
 665
 666 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 667 cgen_cpu_prefix=""
 668 if test $using_cgen = yes ; then
 669   case ${target_cpu} in
 670     or1knd)
 671        cgen_cpu_prefix=or1k ;;
 672     *) cgen_cpu_prefix=${target_cpu} ;;
 673   esac
 674   AC_SUBST(cgen_cpu_prefix)
 675   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 676 fi
 677
 678 dnl
 679 dnl Make sure the desired support files exist.
 680 dnl
 681
 682 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 683   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 684 fi
 685
 686 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 687   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 688 fi
 689
 690 # Some COFF configurations want these random other flags set.
 691 case ${obj_format} in
 692   coff)
 693     case ${target_cpu_type} in
 694       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 695       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 696       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 697       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 698     esac
 699     ;;
 700 esac
 701
 702 # Getting this done right is going to be a bitch.  Each configuration specified
 703 # with --enable-targets=... should be checked for environment, format, cpu
 704 # setting.
 705 #
 706 # For each configuration, the necessary object file support code must be linked
 707 # in.  This might be only one, it might be up to four.  The necessary emulation
 708 # code needs to be provided, too.
 709 #
 710 # And then there's "--enable-targets=all"....
 711 #
 712 # For now, just always do it for MIPS ELF configurations.  Sigh.
 713
 714 formats="${obj_format}"
 715 emfiles=""
 716 EMULATIONS=""
 717 GAS_UNIQ(emulations)
 718 for em in . $emulations ; do
 719   case $em in
 720     .)  continue ;;
 721     mipsbelf | mipslelf | mipself)
 722         fmt=elf   file=mipself ;;
 723     *coff)
 724         fmt=coff  file=$em ;;
 725     *aout)
 726         fmt=aout file=$em ;;
 727     *elf)
 728         fmt=elf file=$em ;;
 729   esac
 730   formats="$formats $fmt"
 731   emfiles="$emfiles e-$file.o"
 732   EMULATIONS="$EMULATIONS &$em,"
 733 done
 734 GAS_UNIQ(formats)
 735 GAS_UNIQ(emfiles)
 736 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 737   for fmt in $formats ; do
 738     case $fmt in
 739       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 740       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 741       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 742       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 743       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 744       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 745       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 746     esac
 747     extra_objects="$extra_objects obj-$fmt.o"
 748   done
 749   obj_format=multi
 750 fi
 751 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 752   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 753   # e-mipself has more than one emulation per file, e-i386* has just one at the
 754   # moment.  If only one emulation is specified, then don't define
 755   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 756   case "${obj_format}${emfiles}" in
 757     multi* | *mipself*)
 758       extra_objects="$extra_objects $emfiles"
 759       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 760   esac
 761 fi
 762 AC_SUBST(extra_objects)
 763 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 764 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 765                    [Default emulation.])
 766
 767 reject_dev_configs=yes
 768
 769 case ${reject_dev_configs}-${dev} in
 770   yes-yes) # Oops.
 771     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 772     ;;
 773 esac
 774
 775 AC_SUBST(target_cpu_type)
 776 AC_SUBST(obj_format)
 777 AC_SUBST(te_file)
 778 AC_SUBST(install_tooldir)
 779 AC_SUBST(atof)
 780 dnl AC_SUBST(emulation)
 781
 782 # do we need the opcodes library?
 783 case "${need_opcodes}" in
 784 yes)
 785   OPCODES_LIB=../opcodes/libopcodes.la
 786   ;;
 787 esac
 788
 789 AC_SUBST(OPCODES_LIB)
 790
 791 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 792 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 793 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 794 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 795 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 796
 797 AC_PROG_YACC
 798 AM_PROG_LEX
 799
 800 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
 801 ZW_GNU_GETTEXT_SISTER_DIR
 802 AM_PO_SUBDIRS
 803
 804 AM_MAINTAINER_MODE
 805 AM_CONDITIONAL(GENINSRC_NEVER, false)
 806 AC_EXEEXT
 807
 808 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
 809 ACX_HEADER_STRING
 810
 811 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 812 # people who are not cross-compiling but are compiling cross-assemblers.
 813 AC_MSG_CHECKING(whether compiling a cross-assembler)
 814 if test "${host}" = "${target}"; then
 815   cross_gas=no
 816 else
 817   cross_gas=yes
 818   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 819 fi
 820 AC_MSG_RESULT($cross_gas)
 821
 822 dnl ansidecl.h will deal with const
 823 dnl AC_C_CONST
 824 AC_FUNC_ALLOCA
 825 AC_C_INLINE
 826
 827 # VMS doesn't have unlink.
 828 AC_CHECK_FUNCS(unlink remove, break)
 829 AC_CHECK_FUNCS(sbrk setlocale)
 830 AC_CHECK_FUNCS(strsignal)
 831
 832 AM_LC_MESSAGES
 833
 834 # do we need the math library?
 835 case "${need_libm}" in
 836 yes)
 837   LT_LIB_M
 838   AC_SUBST(LIBM)
 839   ;;
 840 esac
 841
 842 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 843 # enough, but on some of those systems, the assert macro relies on requoting
 844 # working properly!
 845 GAS_WORKING_ASSERT
 846
 847 # On some systems, the system header files may not declare malloc, realloc,
 848 # and free.  There are places where gas needs these functions to have been
 849 # declared -- such as when taking their addresses.
 850 gas_test_headers="
 851 #ifdef HAVE_MEMORY_H
 852 #include <memory.h>
 853 #endif
 854 #ifdef HAVE_STRING_H
 855 #include <string.h>
 856 #else
 857 #ifdef HAVE_STRINGS_H
 858 #include <strings.h>
 859 #endif
 860 #endif
 861 #ifdef HAVE_STDLIB_H
 862 #include <stdlib.h>
 863 #endif
 864 #ifdef HAVE_UNISTD_H
 865 #include <unistd.h>
 866 #endif
 867 "
 868
 869 # Does errno.h declare errno, or do we have to add a separate declaration
 870 # for it?
 871 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 872 #ifdef HAVE_ERRNO_H
 873 #include <errno.h>
 874 #endif
 875 ])
 876
 877 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 878 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 879 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 880 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 881 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 882 if test $gas_cv_decl_getopt_unistd_h = yes; then
 883   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 884             [Is the prototype for getopt in <unistd.h> in the expected format?])
 885 fi
 886
 887 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 888 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 889 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 890 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 891 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 892 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 893
 894 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
 895
 896 BFD_BINARY_FOPEN
 897
 898 # Link in zlib if we can.  This allows us to write compressed debug sections.
 899 AM_ZLIB
 900
 901 # Support for VMS timestamps via cross compile
 902
 903 if test "$ac_cv_header_time_h" = yes; then
 904   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 905 fi
 906
 907 if test "$ac_cv_header_sys_stat_h" = yes; then
 908     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 909     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 910 fi
 911
 912
 913 dnl Required for html, pdf, install-pdf and install-html targets.
 914 AC_SUBST(datarootdir)
 915 AC_SUBST(docdir)
 916 AC_SUBST(htmldir)
 917 AC_SUBST(pdfdir)
 918
 919 dnl This must come last.
 920
 921 dnl We used to make symlinks to files in the source directory, but now
 922 dnl we just use the right name for .c files, and create .h files in
 923 dnl the build directory which include the right .h file.  Make sure
 924 dnl the old symlinks don't exist, so that a reconfigure in an existing
 925 dnl directory behaves reasonably.
 926
 927 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 928 AC_CONFIG_COMMANDS([default],
 929 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 930  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 931  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 932  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 933  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 934  if test "x$cgen_cpu_prefix" != x ; then
 935    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 936  fi],
 937 [target_cpu_type=${target_cpu_type}
 938  cgen_cpu_prefix=${cgen_cpu_prefix}
 939  obj_format=${obj_format}
 940  te_file=${te_file}])
 941
 942 AC_OUTPUT