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      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 | 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
    940