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) 2012-2016 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
  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 using_cgen=no
 103
 104 AM_BINUTILS_WARNINGS
 105
 106 # Generate a header file
 107 AC_CONFIG_HEADERS(config.h:config.in)
 108
 109 # PR 14072
 110 AH_VERBATIM([00_CONFIG_H_CHECK],
 111 [/* Check that config.h is #included before system headers
 112    (this works only for glibc, but that should be enough).  */
 113 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
 114 #  error config.h must be #included before system headers
 115 #endif
 116 #define __CONFIG_H__ 1])
 117
 118 # If we are on a DOS filesystem, we must use gdb.ini rather than
 119 # .gdbinit.
 120 case "${host}" in
 121   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
 122     GDBINIT="gdb.ini"
 123     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
 124     ;;
 125   *)
 126     GDBINIT=".gdbinit"
 127     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
 128     ;;
 129 esac
 130 AC_SUBST(GDBINIT)
 131
 132 #We need this for the host.  BOUT header is in host order.
 133 AC_C_BIGENDIAN
 134
 135 te_file=generic
 136
 137 # Makefile target for installing gas in $(tooldir)/bin.
 138 install_tooldir=install-exec-tooldir
 139
 140 canon_targets=""
 141 all_targets=no
 142 if test -n "$enable_targets" ; then
 143   for t in `echo $enable_targets | sed 's/,/ /g'`; do
 144     if test $t = "all"; then
 145       all_targets=yes
 146       continue
 147     fi
 148     result=`$ac_config_sub $t 2>/dev/null`
 149     if test -n "$result" ; then
 150       canon_targets="$canon_targets $result"
 151 #    else
 152 #      # Permit "all", etc.  We don't support it yet though.
 153 #      canon_targets="$canon_targets $t"
 154     fi
 155   done
 156   GAS_UNIQ(canon_targets)
 157 fi
 158
 159 emulations=""
 160
 161 for this_target in $target $canon_targets ; do
 162
 163     targ=${this_target}
 164     . ${srcdir}/configure.tgt
 165
 166     case ${target_cpu} in
 167       crisv32)
 168         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
 169                            [Default CRIS architecture.])
 170         ;;
 171     esac
 172
 173     if test ${this_target} = $target ; then
 174       target_cpu_type=${cpu_type}
 175     elif test ${target_cpu_type} != ${cpu_type} ; then
 176       continue
 177     fi
 178
 179     generic_target=${cpu_type}-${target_vendor}-${target_os}
 180     case ${generic_target} in
 181       i386-*-sco3.2v5*)
 182         if test ${this_target} = $target; then
 183           AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
 184         fi
 185         ;;
 186
 187       i386-*-msdosdjgpp* \
 188       | i386-*-go32* \
 189       | i386-go32-rtems*)
 190         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 191         ;;
 192
 193       i386-*-solaris2 \
 194       | x86_64-*-solaris2 \
 195       | i386-*-solaris2.[[0-9]] \
 196       | i386-*-solaris2.1[[01]] \
 197       | x86_64-*-solaris2.1[[01]])
 198         if test ${this_target} = $target \
 199            && test ${ac_default_x86_relax_relocations} = unset; then
 200           ac_default_x86_relax_relocations=0
 201         fi
 202         ;;
 203
 204       i860-*-*)
 205         AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
 206         ;;
 207
 208       microblaze*)
 209         ;;
 210
 211 changequote(,)dnl
 212       ppc-*-aix[5-9].*)
 213 changequote([,])dnl
 214         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 215                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 216         ;;
 217       ppc-*-solaris*)
 218         if test ${this_target} = $target; then
 219           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 220                     [Define if default target is PowerPC Solaris.])
 221         fi
 222         if test x${endian} = xbig; then
 223           AC_MSG_ERROR(Solaris must be configured little endian)
 224         fi
 225         ;;
 226
 227       sh*-*-symbianelf*)
 228         AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
 229         ;;
 230     esac
 231
 232     if test ${this_target} = $target ; then
 233       endian_def=
 234       if test x${endian} = xbig; then
 235         endian_def=1
 236       elif test x${endian} = xlittle; then
 237         endian_def=0
 238       fi
 239       if test x${endian_def} != x; then
 240         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 241                            [Define as 1 if big endian.])
 242       fi
 243     fi
 244
 245 # Other random stuff.
 246
 247     case ${cpu_type} in
 248       mips)
 249         # Set mips_cpu to the name of the default CPU.
 250         case ${target_cpu} in
 251           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 252             mips_cpu=from-abi
 253             ;;
 254           mipsisa32 | mipsisa32el)
 255             mips_cpu=mips32
 256             ;;
 257           mipsisa32r2 | mipsisa32r2el)
 258             mips_cpu=mips32r2
 259             ;;
 260           mipsisa32r3 | mipsisa32r3el)
 261             mips_cpu=mips32r3
 262             ;;
 263           mipsisa32r5 | mipsisa32r5el)
 264             mips_cpu=mips32r5
 265             ;;
 266           mipsisa32r6 | mipsisa32r6el)
 267             mips_cpu=mips32r6
 268             ;;
 269           mipsisa64 | mipsisa64el)
 270             mips_cpu=mips64
 271             ;;
 272           mipsisa64r2 | mipsisa64r2el)
 273             mips_cpu=mips64r2
 274             ;;
 275           mipsisa64r3 | mipsisa64r3el)
 276             mips_cpu=mips64r3
 277             ;;
 278           mipsisa64r5 | mipsisa64r5el)
 279             mips_cpu=mips64r5
 280             ;;
 281           mipsisa64r6 | mipsisa64r6el)
 282             mips_cpu=mips64r6
 283             ;;
 284           mipstx39 | mipstx39el)
 285             mips_cpu=r3900
 286             ;;
 287           mips64vr | mips64vrel)
 288             mips_cpu=vr4100
 289             ;;
 290           mipsisa32r2* | mipsisa64r2*)
 291 changequote(,)dnl
 292             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 293 changequote([,])dnl
 294             ;;
 295           mipsisa32r6* | mipsisa64r6*)
 296 changequote(,)dnl
 297             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
 298 changequote([,])dnl
 299             ;;
 300           mips64* | mipsisa64* | mipsisa32*)
 301 changequote(,)dnl
 302             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 303 changequote([,])dnl
 304             ;;
 305           mips*)
 306 changequote(,)dnl
 307             mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
 308 changequote([,])dnl
 309             ;;
 310           *)
 311             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 312             ;;
 313         esac
 314         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 315         # binaries.  It's a GNU extension that some OSes don't understand.
 316         case ${target} in
 317           *-*-irix*)
 318             use_e_mips_abi_o32=0
 319             ;;
 320           *)
 321             use_e_mips_abi_o32=1
 322             ;;
 323         esac
 324         # Decide whether to generate 32-bit or 64-bit code by default.
 325         # Used to resolve -march=from-abi when an embedded ABI is selected.
 326         case ${target} in
 327           mips64*-*-* | mipsisa64*-*-*)
 328             mips_default_64bit=1
 329             ;;
 330           *)
 331             mips_default_64bit=0
 332             ;;
 333         esac
 334         # Decide which ABI to target by default.
 335         case ${target} in
 336           mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* | mips64*-kfreebsd*-gnu)
 337             mips_default_abi=N32_ABI
 338             ;;
 339           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 340             mips_default_abi=O32_ABI
 341             ;;
 342           mips64*-openbsd*)
 343             mips_default_abi=N64_ABI
 344             ;;
 345           *)
 346             mips_default_abi=NO_ABI
 347             ;;
 348         esac
 349         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 350                            [Default CPU for MIPS targets. ])
 351         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 352                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 353         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 354                            [Generate 64-bit code by default on MIPS targets. ])
 355         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 356                            [Choose a default ABI for MIPS targets. ])
 357         ;;
 358     esac
 359
 360     # Do we need the opcodes library?
 361     case ${cpu_type} in
 362       vax | tic30)
 363         ;;
 364
 365       *)
 366         need_opcodes=yes
 367
 368         case "${enable_shared}" in
 369         yes) shared_opcodes=true ;;
 370         *opcodes*) shared_opcodes=true ;;
 371         *) shared_opcodes=false ;;
 372         esac
 373         ;;
 374     esac
 375
 376     # Any other special object files needed ?
 377     case ${cpu_type} in
 378
 379       bfin)
 380         echo ${extra_objects} | grep -s "bfin-parse.o"
 381         if test $? -ne 0 ; then
 382           extra_objects="$extra_objects bfin-parse.o"
 383         fi
 384
 385         echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
 386         if test $? -ne 0 ; then
 387           extra_objects="$extra_objects bfin-lex-wrapper.o"
 388         fi
 389         ;;
 390
 391       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
 392         using_cgen=yes
 393         ;;
 394
 395       m32c)
 396         using_cgen=yes
 397         ;;
 398       frv)
 399         using_cgen=yes
 400         ;;
 401       m68k)
 402         case ${extra_objects} in
 403         *m68k-parse.o*) ;;
 404         *) extra_objects="$extra_objects m68k-parse.o" ;;
 405         esac
 406         ;;
 407
 408       mep)
 409         using_cgen=yes
 410         ;;
 411
 412       mips)
 413         echo ${extra_objects} | grep -s "itbl-parse.o"
 414         if test $? -ne 0 ; then
 415           extra_objects="$extra_objects itbl-parse.o"
 416         fi
 417
 418         echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
 419         if test $? -ne 0 ; then
 420           extra_objects="$extra_objects itbl-lex-wrapper.o"
 421         fi
 422
 423         echo ${extra_objects} | grep -s "itbl-ops.o"
 424         if test $? -ne 0 ; then
 425           extra_objects="$extra_objects itbl-ops.o"
 426         fi
 427         ;;
 428
 429       mt)
 430         using_cgen=yes
 431         ;;
 432
 433       nds32)
 434         # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
 435         # based on arch_name.
 436         AC_MSG_CHECKING(for default configuration of --with-arch)
 437         if test "x${with_arch}" != x; then
 438           case ${with_arch} in
 439             v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
 440               AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
 441                                  [Define value for nds32_arch_name])
 442               ;;
 443             *)
 444               AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
 445               ;;
 446           esac
 447         fi
 448         AC_MSG_RESULT($with_arch)
 449
 450         # Decide features one by one.
 451         AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
 452         if test "x${enable_dx_regs}" = xyes; then
 453           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
 454                     [Define value for nds32_dx_regs])
 455         else
 456           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
 457                     [Define default value for nds32_dx_regs])
 458         fi
 459         AC_MSG_RESULT($enable_dx_regs)
 460
 461         AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
 462         if test "x${enable_perf_ext}" = xno; then
 463           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
 464                     [Define value for nds32_perf_ext])
 465         else
 466           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
 467                     [Define default value for nds32_perf_ext])
 468         fi
 469         AC_MSG_RESULT($enable_perf_ext)
 470
 471         AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
 472         if test "x${enable_perf_ext2}" = xno; then
 473           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
 474                     [Define value for nds32_perf_ext2])
 475         else
 476           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
 477                     [Define default value for nds32_perf_ext2])
 478         fi
 479         AC_MSG_RESULT($enable_perf_ext2)
 480
 481         AC_MSG_CHECKING(for default configuration of --enable-string-ext)
 482         if test "x${enable_string_ext}" = xno; then
 483           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
 484                     [Define value for nds32_string_ext])
 485         else
 486           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
 487                     [Define default value for nds32_string_ext])
 488         fi
 489         AC_MSG_RESULT($enable_string_ext)
 490
 491         AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
 492         if test "x${enable_audio_ext}" = xno; then
 493           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
 494                     [Define value for nds32_audio_ext])
 495         else
 496           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
 497                     [Define default value for nds32_audio_ext])
 498         fi
 499         AC_MSG_RESULT($enable_audio_ext)
 500         ;;
 501
 502       i386 | s390 | sparc)
 503         if test $this_target = $target ; then
 504           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 505         fi
 506         ;;
 507
 508       rl78)
 509         echo ${extra_objects} | grep -s "rl78-parse.o"
 510         if test $? -ne 0 ; then
 511           extra_objects="$extra_objects rl78-parse.o"
 512         fi
 513         ;;
 514
 515       rx)
 516         echo ${extra_objects} | grep -s "rx-parse.o"
 517         if test $? -ne 0 ; then
 518           extra_objects="$extra_objects rx-parse.o"
 519         fi
 520         ;;
 521
 522       xstormy16)
 523         using_cgen=yes
 524         ;;
 525
 526       xc16x)
 527         using_cgen=yes
 528         ;;
 529
 530       xtensa)
 531         echo ${extra_objects} | grep -s "xtensa-relax.o"
 532         if test $? -ne 0 ; then
 533           extra_objects="$extra_objects xtensa-relax.o"
 534         fi
 535         ;;
 536
 537       *)
 538         ;;
 539     esac
 540
 541     if test $using_cgen = yes ; then
 542         case "x${extra_objects}" in
 543         *cgen.o*) ;;
 544         *) extra_objects="$extra_objects cgen.o" ;;
 545         esac
 546     fi
 547
 548 # See if we really can support this configuration with the emulation code.
 549
 550     if test $this_target = $target ; then
 551       obj_format=$fmt
 552       te_file=$em
 553     fi
 554
 555    case ${te_file} in
 556       vms) extra_objects="$extra_objects te-vms.o" ;;
 557    esac
 558
 559 # From target name and format, produce a list of supported emulations.
 560
 561     case ${generic_target}-${fmt} in
 562       mips-*-*-*)       case "$endian" in
 563                         big)    emulation="mipsbelf mipslelf mipself" ;;
 564                         *)      emulation="mipslelf mipsbelf mipself" ;;
 565                         esac ;;
 566       # i386-pc-pe-coff != i386-pc-coff.
 567       i386-*-pe-coff)   ;;
 568       # Uncommenting the next line will turn on support for i386 AOUT
 569       # for the default linux configuration
 570       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 571       #
 572       i386-*-aout)      emulation="i386aout" ;;
 573       i386-*-coff)      emulation="i386coff" ;;
 574       i386-*-elf)       emulation="i386elf" ;;
 575
 576       # Always all formats.  The first stated emulation becomes the default.
 577       cris-*-*aout*)    emulation="crisaout criself" ;;
 578       cris-*-*)         emulation="criself crisaout" ;;
 579     esac
 580
 581     emulations="$emulations $emulation"
 582
 583 done
 584
 585 if test ${ac_default_x86_relax_relocations} = unset; then
 586   ac_default_x86_relax_relocations=1
 587 fi
 588 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
 589   $ac_default_x86_relax_relocations,
 590   [Define to 1 if you want to generate x86 relax relocations by default.])
 591
 592 if test ${ac_default_elf_stt_common} = unset; then
 593   ac_default_elf_stt_common=0
 594 fi
 595 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
 596   $ac_default_elf_stt_common,
 597   [Define to 1 if you want to generate ELF common symbols with the
 598    STT_COMMON type by default.])
 599
 600 if test x$ac_default_compressed_debug_sections = xyes ; then
 601   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 602 fi
 603
 604 # Turn on all targets if possible
 605 if test ${all_targets} = "yes"; then
 606   case ${target_cpu_type} in
 607   i386)
 608     case ${obj_format} in
 609     aout)
 610       emulations="$emulations i386coff i386elf"
 611       ;;
 612     coff)
 613       emulations="$emulations i386aout i386elf"
 614     ;;
 615     elf)
 616       emulations="$emulations i386aout i386coff"
 617       ;;
 618     esac
 619   ;;
 620   x86_64)
 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   esac
 634 fi
 635
 636 # PE code has way too many macros tweaking behaviour
 637 case ${te_file} in
 638   pe*) emulations="" ;;
 639 esac
 640
 641 # Assign floating point type.  Most processors with FP support
 642 # IEEE FP.  On those that don't support FP at all, usually IEEE
 643 # is emulated.
 644 case ${target_cpu} in
 645   vax | pdp11 ) atof=vax ;;
 646   *)            atof=ieee ;;
 647 esac
 648
 649 case "${obj_format}" in
 650   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 651 esac
 652
 653 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 654 cgen_cpu_prefix=""
 655 if test $using_cgen = yes ; then
 656   case ${target_cpu} in
 657     or1knd)
 658        cgen_cpu_prefix=or1k ;;
 659     *) cgen_cpu_prefix=${target_cpu} ;;
 660   esac
 661   AC_SUBST(cgen_cpu_prefix)
 662   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 663 fi
 664
 665 dnl
 666 dnl Make sure the desired support files exist.
 667 dnl
 668
 669 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 670   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 671 fi
 672
 673 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 674   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 675 fi
 676
 677 # Some COFF configurations want these random other flags set.
 678 case ${obj_format} in
 679   coff)
 680     case ${target_cpu_type} in
 681       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 682       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 683       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 684       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 685     esac
 686     ;;
 687 esac
 688
 689 # Getting this done right is going to be a bitch.  Each configuration specified
 690 # with --enable-targets=... should be checked for environment, format, cpu
 691 # setting.
 692 #
 693 # For each configuration, the necessary object file support code must be linked
 694 # in.  This might be only one, it might be up to four.  The necessary emulation
 695 # code needs to be provided, too.
 696 #
 697 # And then there's "--enable-targets=all"....
 698 #
 699 # For now, just always do it for MIPS ELF configurations.  Sigh.
 700
 701 formats="${obj_format}"
 702 emfiles=""
 703 EMULATIONS=""
 704 GAS_UNIQ(emulations)
 705 for em in . $emulations ; do
 706   case $em in
 707     .)  continue ;;
 708     mipsbelf | mipslelf | mipself)
 709         fmt=elf   file=mipself ;;
 710     *coff)
 711         fmt=coff  file=$em ;;
 712     *aout)
 713         fmt=aout file=$em ;;
 714     *elf)
 715         fmt=elf file=$em ;;
 716   esac
 717   formats="$formats $fmt"
 718   emfiles="$emfiles e-$file.o"
 719   EMULATIONS="$EMULATIONS &$em,"
 720 done
 721 GAS_UNIQ(formats)
 722 GAS_UNIQ(emfiles)
 723 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 724   for fmt in $formats ; do
 725     case $fmt in
 726       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 727       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 728       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 729       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 730       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 731       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 732       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 733     esac
 734     extra_objects="$extra_objects obj-$fmt.o"
 735   done
 736   obj_format=multi
 737 fi
 738 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 739   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 740   # e-mipself has more than one emulation per file, e-i386* has just one at the
 741   # moment.  If only one emulation is specified, then don't define
 742   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 743   case "${obj_format}${emfiles}" in
 744     multi* | *mipself*)
 745       extra_objects="$extra_objects $emfiles"
 746       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 747   esac
 748 fi
 749 AC_SUBST(extra_objects)
 750 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 751 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 752                    [Default emulation.])
 753
 754 reject_dev_configs=yes
 755
 756 case ${reject_dev_configs}-${dev} in
 757   yes-yes) # Oops.
 758     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 759     ;;
 760 esac
 761
 762 AC_SUBST(target_cpu_type)
 763 AC_SUBST(obj_format)
 764 AC_SUBST(te_file)
 765 AC_SUBST(install_tooldir)
 766 AC_SUBST(atof)
 767 dnl AC_SUBST(emulation)
 768
 769 # do we need the opcodes library?
 770 case "${need_opcodes}" in
 771 yes)
 772   OPCODES_LIB=../opcodes/libopcodes.la
 773   ;;
 774 esac
 775
 776 AC_SUBST(OPCODES_LIB)
 777
 778 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 779 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 780 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 781 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 782 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 783
 784 AC_PROG_YACC
 785 AM_PROG_LEX
 786
 787 ALL_LINGUAS="fr tr es rw id ru fi ja zh_CN"
 788 ZW_GNU_GETTEXT_SISTER_DIR
 789 AM_PO_SUBDIRS
 790
 791 AM_MAINTAINER_MODE
 792 AM_CONDITIONAL(GENINSRC_NEVER, false)
 793 AC_EXEEXT
 794
 795 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
 796 ACX_HEADER_STRING
 797
 798 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 799 # people who are not cross-compiling but are compiling cross-assemblers.
 800 AC_MSG_CHECKING(whether compiling a cross-assembler)
 801 if test "${host}" = "${target}"; then
 802   cross_gas=no
 803 else
 804   cross_gas=yes
 805   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 806 fi
 807 AC_MSG_RESULT($cross_gas)
 808
 809 dnl ansidecl.h will deal with const
 810 dnl AC_C_CONST
 811 AC_FUNC_ALLOCA
 812 AC_C_INLINE
 813
 814 # VMS doesn't have unlink.
 815 AC_CHECK_FUNCS(unlink remove, break)
 816 AC_CHECK_FUNCS(sbrk setlocale)
 817
 818 AM_LC_MESSAGES
 819
 820 # do we need the math library?
 821 case "${need_libm}" in
 822 yes)
 823   LT_LIB_M
 824   AC_SUBST(LIBM)
 825   ;;
 826 esac
 827
 828 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 829 # enough, but on some of those systems, the assert macro relies on requoting
 830 # working properly!
 831 GAS_WORKING_ASSERT
 832
 833 # On some systems, the system header files may not declare malloc, realloc,
 834 # and free.  There are places where gas needs these functions to have been
 835 # declared -- such as when taking their addresses.
 836 gas_test_headers="
 837 #ifdef HAVE_MEMORY_H
 838 #include <memory.h>
 839 #endif
 840 #ifdef HAVE_STRING_H
 841 #include <string.h>
 842 #else
 843 #ifdef HAVE_STRINGS_H
 844 #include <strings.h>
 845 #endif
 846 #endif
 847 #ifdef HAVE_STDLIB_H
 848 #include <stdlib.h>
 849 #endif
 850 #ifdef HAVE_UNISTD_H
 851 #include <unistd.h>
 852 #endif
 853 "
 854
 855 # Does errno.h declare errno, or do we have to add a separate declaration
 856 # for it?
 857 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 858 #ifdef HAVE_ERRNO_H
 859 #include <errno.h>
 860 #endif
 861 ])
 862
 863 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 864 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 865 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 866 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 867 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 868 if test $gas_cv_decl_getopt_unistd_h = yes; then
 869   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 870             [Is the prototype for getopt in <unistd.h> in the expected format?])
 871 fi
 872
 873 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 874 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 875 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 876 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 877 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 878 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 879
 880 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
 881
 882 BFD_BINARY_FOPEN
 883
 884 # Link in zlib if we can.  This allows us to write compressed debug sections.
 885 AM_ZLIB
 886
 887 # Support for VMS timestamps via cross compile
 888
 889 if test "$ac_cv_header_time_h" = yes; then
 890   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 891 fi
 892
 893 if test "$ac_cv_header_sys_stat_h" = yes; then
 894     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 895     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 896 fi
 897
 898
 899 dnl Required for html, pdf, install-pdf and install-html targets.
 900 AC_SUBST(datarootdir)
 901 AC_SUBST(docdir)
 902 AC_SUBST(htmldir)
 903 AC_SUBST(pdfdir)
 904
 905 dnl This must come last.
 906
 907 dnl We used to make symlinks to files in the source directory, but now
 908 dnl we just use the right name for .c files, and create .h files in
 909 dnl the build directory which include the right .h file.  Make sure
 910 dnl the old symlinks don't exist, so that a reconfigure in an existing
 911 dnl directory behaves reasonably.
 912
 913 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 914 AC_CONFIG_COMMANDS([default],
 915 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 916  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 917  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 918  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 919  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 920  if test "x$cgen_cpu_prefix" != x ; then
 921    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 922  fi],
 923 [target_cpu_type=${target_cpu_type}
 924  cgen_cpu_prefix=${cgen_cpu_prefix}
 925  obj_format=${obj_format}
 926  te_file=${te_file}])
 927
 928 AC_OUTPUT