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.
 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       microblaze*)
 217         ;;
 218
 219 changequote(,)dnl
 220       ppc-*-aix[5-9].*)
 221 changequote([,])dnl
 222         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 223                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 224         ;;
 225       ppc-*-solaris*)
 226         if test ${this_target} = $target; then
 227           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 228                     [Define if default target is PowerPC Solaris.])
 229         fi
 230         if test x${endian} = xbig; then
 231           AC_MSG_ERROR(Solaris must be configured little endian)
 232         fi
 233         ;;
 234     esac
 235
 236     if test ${this_target} = $target ; then
 237       endian_def=
 238       if test x${endian} = xbig; then
 239         endian_def=1
 240       elif test x${endian} = xlittle; then
 241         endian_def=0
 242       fi
 243       if test x${endian_def} != x; then
 244         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 245                            [Define as 1 if big endian.])
 246       fi
 247     fi
 248
 249 # Other random stuff.
 250
 251     case ${cpu_type} in
 252       mips)
 253         # Set mips_cpu to the name of the default CPU.
 254         case ${target_cpu} in
 255           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 256             mips_cpu=from-abi
 257             ;;
 258           mipsisa32 | mipsisa32el)
 259             mips_cpu=mips32
 260             ;;
 261           mipsisa32r2 | mipsisa32r2el)
 262             mips_cpu=mips32r2
 263             ;;
 264           mipsisa32r3 | mipsisa32r3el)
 265             mips_cpu=mips32r3
 266             ;;
 267           mipsisa32r5 | mipsisa32r5el)
 268             mips_cpu=mips32r5
 269             ;;
 270           mipsisa32r6 | mipsisa32r6el)
 271             mips_cpu=mips32r6
 272             ;;
 273           mipsisa64 | mipsisa64el)
 274             mips_cpu=mips64
 275             ;;
 276           mipsisa64r2 | mipsisa64r2el)
 277             mips_cpu=mips64r2
 278             ;;
 279           mipsisa64r3 | mipsisa64r3el)
 280             mips_cpu=mips64r3
 281             ;;
 282           mipsisa64r5 | mipsisa64r5el)
 283             mips_cpu=mips64r5
 284             ;;
 285           mipsisa64r6 | mipsisa64r6el)
 286             mips_cpu=mips64r6
 287             ;;
 288           mipstx39 | mipstx39el)
 289             mips_cpu=r3900
 290             ;;
 291           mips64vr | mips64vrel)
 292             mips_cpu=vr4100
 293             ;;
 294           mipsisa32r2* | mipsisa64r2*)
 295 changequote(,)dnl
 296             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 297 changequote([,])dnl
 298             ;;
 299           mipsisa32r6* | mipsisa64r6*)
 300 changequote(,)dnl
 301             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
 302 changequote([,])dnl
 303             ;;
 304           mips64* | mipsisa64* | mipsisa32*)
 305 changequote(,)dnl
 306             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 307 changequote([,])dnl
 308             ;;
 309           mips*)
 310 changequote(,)dnl
 311             mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
 312 changequote([,])dnl
 313             ;;
 314           *)
 315             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 316             ;;
 317         esac
 318         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 319         # binaries.  It's a GNU extension that some OSes don't understand.
 320         case ${target} in
 321           *-*-irix*)
 322             use_e_mips_abi_o32=0
 323             ;;
 324           *)
 325             use_e_mips_abi_o32=1
 326             ;;
 327         esac
 328         # Decide whether to generate 32-bit or 64-bit code by default.
 329         # Used to resolve -march=from-abi when an embedded ABI is selected.
 330         case ${target} in
 331           mips64*-*-* | mipsisa64*-*-*)
 332             mips_default_64bit=1
 333             ;;
 334           *)
 335             mips_default_64bit=0
 336             ;;
 337         esac
 338         # Decide which ABI to target by default.
 339         case ${target} in
 340           mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
 341           | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
 342             mips_default_abi=N32_ABI
 343             ;;
 344           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 345             mips_default_abi=O32_ABI
 346             ;;
 347           mips64*-openbsd*)
 348             mips_default_abi=N64_ABI
 349             ;;
 350           *)
 351             mips_default_abi=NO_ABI
 352             ;;
 353         esac
 354         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 355                            [Default CPU for MIPS targets. ])
 356         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 357                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 358         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 359                            [Generate 64-bit code by default on MIPS targets. ])
 360         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 361                            [Choose a default ABI for MIPS targets. ])
 362         ;;
 363     esac
 364
 365     # Do we need the opcodes library?
 366     case ${cpu_type} in
 367       vax | tic30)
 368         ;;
 369
 370       *)
 371         need_opcodes=yes
 372
 373         case "${enable_shared}" in
 374         yes) shared_opcodes=true ;;
 375         *opcodes*) shared_opcodes=true ;;
 376         *) shared_opcodes=false ;;
 377         esac
 378         ;;
 379     esac
 380
 381     # Any other special object files needed ?
 382     case ${cpu_type} in
 383
 384       bfin)
 385         echo ${extra_objects} | grep -s "bfin-parse.o"
 386         if test $? -ne 0 ; then
 387           extra_objects="$extra_objects bfin-parse.o"
 388         fi
 389
 390         echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
 391         if test $? -ne 0 ; then
 392           extra_objects="$extra_objects bfin-lex-wrapper.o"
 393         fi
 394         ;;
 395
 396       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
 397         using_cgen=yes
 398         ;;
 399
 400       m32c)
 401         using_cgen=yes
 402         ;;
 403       frv)
 404         using_cgen=yes
 405         ;;
 406       m68k)
 407         case ${extra_objects} in
 408         *m68k-parse.o*) ;;
 409         *) extra_objects="$extra_objects m68k-parse.o" ;;
 410         esac
 411         ;;
 412
 413       mep)
 414         using_cgen=yes
 415         ;;
 416
 417       mips)
 418         echo ${extra_objects} | grep -s "itbl-parse.o"
 419         if test $? -ne 0 ; then
 420           extra_objects="$extra_objects itbl-parse.o"
 421         fi
 422
 423         echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
 424         if test $? -ne 0 ; then
 425           extra_objects="$extra_objects itbl-lex-wrapper.o"
 426         fi
 427
 428         echo ${extra_objects} | grep -s "itbl-ops.o"
 429         if test $? -ne 0 ; then
 430           extra_objects="$extra_objects itbl-ops.o"
 431         fi
 432         ;;
 433
 434       mt)
 435         using_cgen=yes
 436         ;;
 437
 438       nds32)
 439         # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
 440         # based on arch_name.
 441         AC_MSG_CHECKING(for default configuration of --with-arch)
 442         if test "x${with_arch}" != x; then
 443           case ${with_arch} in
 444             v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
 445               AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
 446                                  [Define value for nds32_arch_name])
 447               ;;
 448             *)
 449               AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
 450               ;;
 451           esac
 452         fi
 453         AC_MSG_RESULT($with_arch)
 454
 455         # Decide features one by one.
 456         AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
 457         if test "x${enable_dx_regs}" = xyes; then
 458           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
 459                     [Define value for nds32_dx_regs])
 460         else
 461           AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
 462                     [Define default value for nds32_dx_regs])
 463         fi
 464         AC_MSG_RESULT($enable_dx_regs)
 465
 466         AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
 467         if test "x${enable_perf_ext}" = xno; then
 468           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
 469                     [Define value for nds32_perf_ext])
 470         else
 471           AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
 472                     [Define default value for nds32_perf_ext])
 473         fi
 474         AC_MSG_RESULT($enable_perf_ext)
 475
 476         AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
 477         if test "x${enable_perf_ext2}" = xno; then
 478           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
 479                     [Define value for nds32_perf_ext2])
 480         else
 481           AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
 482                     [Define default value for nds32_perf_ext2])
 483         fi
 484         AC_MSG_RESULT($enable_perf_ext2)
 485
 486         AC_MSG_CHECKING(for default configuration of --enable-string-ext)
 487         if test "x${enable_string_ext}" = xno; then
 488           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
 489                     [Define value for nds32_string_ext])
 490         else
 491           AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
 492                     [Define default value for nds32_string_ext])
 493         fi
 494         AC_MSG_RESULT($enable_string_ext)
 495
 496         AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
 497         if test "x${enable_audio_ext}" = xno; then
 498           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
 499                     [Define value for nds32_audio_ext])
 500         else
 501           AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
 502                     [Define default value for nds32_audio_ext])
 503         fi
 504         AC_MSG_RESULT($enable_audio_ext)
 505         ;;
 506
 507       aarch64 | i386 | riscv | s390 | sparc)
 508         if test $this_target = $target ; then
 509           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 510         fi
 511         ;;
 512
 513       rl78)
 514         echo ${extra_objects} | grep -s "rl78-parse.o"
 515         if test $? -ne 0 ; then
 516           extra_objects="$extra_objects rl78-parse.o"
 517         fi
 518         ;;
 519
 520       rx)
 521         echo ${extra_objects} | grep -s "rx-parse.o"
 522         if test $? -ne 0 ; then
 523           extra_objects="$extra_objects rx-parse.o"
 524         fi
 525         ;;
 526
 527       xstormy16)
 528         using_cgen=yes
 529         ;;
 530
 531       xc16x)
 532         using_cgen=yes
 533         ;;
 534
 535       xtensa)
 536         echo ${extra_objects} | grep -s "xtensa-relax.o"
 537         if test $? -ne 0 ; then
 538           extra_objects="$extra_objects xtensa-relax.o"
 539         fi
 540         ;;
 541
 542       *)
 543         ;;
 544     esac
 545
 546     if test $using_cgen = yes ; then
 547         case "x${extra_objects}" in
 548         *cgen.o*) ;;
 549         *) extra_objects="$extra_objects cgen.o" ;;
 550         esac
 551     fi
 552
 553 # See if we really can support this configuration with the emulation code.
 554
 555     if test $this_target = $target ; then
 556       obj_format=$fmt
 557       te_file=$em
 558     fi
 559
 560    case ${te_file} in
 561       vms) extra_objects="$extra_objects te-vms.o" ;;
 562    esac
 563
 564 # From target name and format, produce a list of supported emulations.
 565
 566     case ${generic_target}-${fmt} in
 567       mips-*-*-*)       case "$endian" in
 568                         big)    emulation="mipsbelf mipslelf mipself" ;;
 569                         *)      emulation="mipslelf mipsbelf mipself" ;;
 570                         esac ;;
 571       # i386-pc-pe-coff != i386-pc-coff.
 572       i386-*-pe-coff)   ;;
 573       # Uncommenting the next line will turn on support for i386 AOUT
 574       # for the default linux configuration
 575       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 576       #
 577       i386-*-aout)      emulation="i386aout" ;;
 578       i386-*-coff)      emulation="i386coff" ;;
 579       i386-*-elf)       emulation="i386elf" ;;
 580
 581       # Always all formats.  The first stated emulation becomes the default.
 582       cris-*-*aout*)    emulation="crisaout criself" ;;
 583       cris-*-*)         emulation="criself crisaout" ;;
 584     esac
 585
 586     emulations="$emulations $emulation"
 587
 588 done
 589
 590 if test ${ac_default_x86_relax_relocations} = unset; then
 591   ac_default_x86_relax_relocations=1
 592 fi
 593 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
 594   $ac_default_x86_relax_relocations,
 595   [Define to 1 if you want to generate x86 relax relocations by default.])
 596
 597 if test ${ac_default_elf_stt_common} = unset; then
 598   ac_default_elf_stt_common=0
 599 fi
 600 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
 601   $ac_default_elf_stt_common,
 602   [Define to 1 if you want to generate ELF common symbols with the
 603    STT_COMMON type by default.])
 604
 605 if test x$ac_default_compressed_debug_sections = xyes ; then
 606   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 607 fi
 608
 609 # Turn on all targets if possible
 610 if test ${all_targets} = "yes"; then
 611   case ${target_cpu_type} in
 612   i386)
 613     case ${obj_format} in
 614     aout)
 615       emulations="$emulations i386coff i386elf"
 616       ;;
 617     coff)
 618       emulations="$emulations i386aout i386elf"
 619     ;;
 620     elf)
 621       emulations="$emulations i386aout i386coff"
 622       ;;
 623     esac
 624   ;;
 625   x86_64)
 626     case ${obj_format} in
 627     aout)
 628       emulations="$emulations i386coff i386elf"
 629       ;;
 630     coff)
 631       emulations="$emulations i386aout i386elf"
 632     ;;
 633     elf)
 634       emulations="$emulations i386aout i386coff"
 635       ;;
 636     esac
 637   ;;
 638   esac
 639 fi
 640
 641 # PE code has way too many macros tweaking behaviour
 642 case ${te_file} in
 643   pe*) emulations="" ;;
 644 esac
 645
 646 # Assign floating point type.  Most processors with FP support
 647 # IEEE FP.  On those that don't support FP at all, usually IEEE
 648 # is emulated.
 649 case ${target_cpu} in
 650   vax | pdp11 ) atof=vax ;;
 651   *)            atof=ieee ;;
 652 esac
 653
 654 case "${obj_format}" in
 655   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 656 esac
 657
 658 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 659 cgen_cpu_prefix=""
 660 if test $using_cgen = yes ; then
 661   case ${target_cpu} in
 662     or1knd)
 663        cgen_cpu_prefix=or1k ;;
 664     *) cgen_cpu_prefix=${target_cpu} ;;
 665   esac
 666   AC_SUBST(cgen_cpu_prefix)
 667   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 668 fi
 669
 670 dnl
 671 dnl Make sure the desired support files exist.
 672 dnl
 673
 674 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 675   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 676 fi
 677
 678 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 679   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 680 fi
 681
 682 # Some COFF configurations want these random other flags set.
 683 case ${obj_format} in
 684   coff)
 685     case ${target_cpu_type} in
 686       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 687       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 688     esac
 689     ;;
 690 esac
 691
 692 # Getting this done right is going to be a bitch.  Each configuration specified
 693 # with --enable-targets=... should be checked for environment, format, cpu
 694 # setting.
 695 #
 696 # For each configuration, the necessary object file support code must be linked
 697 # in.  This might be only one, it might be up to four.  The necessary emulation
 698 # code needs to be provided, too.
 699 #
 700 # And then there's "--enable-targets=all"....
 701 #
 702 # For now, just always do it for MIPS ELF configurations.  Sigh.
 703
 704 formats="${obj_format}"
 705 emfiles=""
 706 EMULATIONS=""
 707 GAS_UNIQ(emulations)
 708 for em in . $emulations ; do
 709   case $em in
 710     .)  continue ;;
 711     mipsbelf | mipslelf | mipself)
 712         fmt=elf   file=mipself ;;
 713     *coff)
 714         fmt=coff  file=$em ;;
 715     *aout)
 716         fmt=aout file=$em ;;
 717     *elf)
 718         fmt=elf file=$em ;;
 719   esac
 720   formats="$formats $fmt"
 721   emfiles="$emfiles e-$file.o"
 722   EMULATIONS="$EMULATIONS &$em,"
 723 done
 724 GAS_UNIQ(formats)
 725 GAS_UNIQ(emfiles)
 726 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 727   for fmt in $formats ; do
 728     case $fmt in
 729       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 730       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 731       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 732       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 733       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 734       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 735     esac
 736     extra_objects="$extra_objects obj-$fmt.o"
 737   done
 738   obj_format=multi
 739 fi
 740 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 741   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 742   # e-mipself has more than one emulation per file, e-i386* has just one at the
 743   # moment.  If only one emulation is specified, then don't define
 744   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 745   case "${obj_format}${emfiles}" in
 746     multi* | *mipself*)
 747       extra_objects="$extra_objects $emfiles"
 748       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 749   esac
 750 fi
 751 AC_SUBST(extra_objects)
 752 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 753 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 754                    [Default emulation.])
 755
 756 reject_dev_configs=yes
 757
 758 case ${reject_dev_configs}-${dev} in
 759   yes-yes) # Oops.
 760     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 761     ;;
 762 esac
 763
 764 AC_SUBST(target_cpu_type)
 765 AC_SUBST(obj_format)
 766 AC_SUBST(te_file)
 767 AC_SUBST(install_tooldir)
 768 AC_SUBST(atof)
 769 dnl AC_SUBST(emulation)
 770
 771 # do we need the opcodes library?
 772 case "${need_opcodes}" in
 773 yes)
 774   OPCODES_LIB=../opcodes/libopcodes.la
 775   ;;
 776 esac
 777
 778 AC_SUBST(OPCODES_LIB)
 779
 780 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 781 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 782 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 783 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 784 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 785
 786 AC_PROG_YACC
 787 AM_PROG_LEX
 788
 789 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
 790 ZW_GNU_GETTEXT_SISTER_DIR
 791 AM_PO_SUBDIRS
 792
 793 AM_MAINTAINER_MODE
 794 AM_CONDITIONAL(GENINSRC_NEVER, false)
 795 AC_EXEEXT
 796
 797 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
 798 ACX_HEADER_STRING
 799
 800 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 801 # people who are not cross-compiling but are compiling cross-assemblers.
 802 AC_MSG_CHECKING(whether compiling a cross-assembler)
 803 if test "${host}" = "${target}"; then
 804   cross_gas=no
 805 else
 806   cross_gas=yes
 807   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 808 fi
 809 AC_MSG_RESULT($cross_gas)
 810
 811 dnl ansidecl.h will deal with const
 812 dnl AC_C_CONST
 813 AC_FUNC_ALLOCA
 814 AC_C_INLINE
 815
 816 # VMS doesn't have unlink.
 817 AC_CHECK_FUNCS(unlink remove, break)
 818 AC_CHECK_FUNCS(sbrk setlocale)
 819 AC_CHECK_FUNCS(strsignal)
 820
 821 AM_LC_MESSAGES
 822
 823 # do we need the math library?
 824 case "${need_libm}" in
 825 yes)
 826   LT_LIB_M
 827   AC_SUBST(LIBM)
 828   ;;
 829 esac
 830
 831 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 832 # enough, but on some of those systems, the assert macro relies on requoting
 833 # working properly!
 834 GAS_WORKING_ASSERT
 835
 836 # On some systems, the system header files may not declare malloc, realloc,
 837 # and free.  There are places where gas needs these functions to have been
 838 # declared -- such as when taking their addresses.
 839 gas_test_headers="
 840 #ifdef HAVE_MEMORY_H
 841 #include <memory.h>
 842 #endif
 843 #ifdef HAVE_STRING_H
 844 #include <string.h>
 845 #else
 846 #ifdef HAVE_STRINGS_H
 847 #include <strings.h>
 848 #endif
 849 #endif
 850 #ifdef HAVE_STDLIB_H
 851 #include <stdlib.h>
 852 #endif
 853 #ifdef HAVE_UNISTD_H
 854 #include <unistd.h>
 855 #endif
 856 "
 857
 858 # Does errno.h declare errno, or do we have to add a separate declaration
 859 # for it?
 860 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 861 #ifdef HAVE_ERRNO_H
 862 #include <errno.h>
 863 #endif
 864 ])
 865
 866 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 867 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 868 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 869 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 870 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 871 if test $gas_cv_decl_getopt_unistd_h = yes; then
 872   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 873             [Is the prototype for getopt in <unistd.h> in the expected format?])
 874 fi
 875
 876 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 877 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 878 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 879 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 880 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 881 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 882
 883 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
 884
 885 BFD_BINARY_FOPEN
 886
 887 # Link in zlib if we can.  This allows us to write compressed debug sections.
 888 AM_ZLIB
 889
 890 # Support for VMS timestamps via cross compile
 891
 892 if test "$ac_cv_header_time_h" = yes; then
 893   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 894 fi
 895
 896 if test "$ac_cv_header_sys_stat_h" = yes; then
 897     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 898     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 899 fi
 900
 901
 902 dnl Required for html, pdf, install-pdf and install-html targets.
 903 AC_SUBST(datarootdir)
 904 AC_SUBST(docdir)
 905 AC_SUBST(htmldir)
 906 AC_SUBST(pdfdir)
 907
 908 dnl This must come last.
 909
 910 dnl We used to make symlinks to files in the source directory, but now
 911 dnl we just use the right name for .c files, and create .h files in
 912 dnl the build directory which include the right .h file.  Make sure
 913 dnl the old symlinks don't exist, so that a reconfigure in an existing
 914 dnl directory behaves reasonably.
 915
 916 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 917 AC_CONFIG_COMMANDS([default],
 918 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 919  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 920  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 921  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 922  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 923  if test "x$cgen_cpu_prefix" != x ; then
 924    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 925  fi],
 926 [target_cpu_type=${target_cpu_type}
 927  cgen_cpu_prefix=${cgen_cpu_prefix}
 928  obj_format=${obj_format}
 929  te_file=${te_file}])
 930
 931 AC_OUTPUT