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