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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) 2012-2014 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$ac_checking != x ; then
     64   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
     65 fi
     66 
     67 using_cgen=no
     68 
     69 AM_BINUTILS_WARNINGS
     70 
     71 # Generate a header file
     72 AC_CONFIG_HEADERS(config.h:config.in)
     73 
     74 # PR 14072
     75 AH_VERBATIM([00_CONFIG_H_CHECK],
     76 [/* Check that config.h is #included before system headers
     77    (this works only for glibc, but that should be enough).  */
     78 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
     79 #  error config.h must be #included before system headers
     80 #endif
     81 #define __CONFIG_H__ 1])
     82 
     83 # If we are on a DOS filesystem, we must use gdb.ini rather than
     84 # .gdbinit.
     85 case "${host}" in
     86   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
     87     GDBINIT="gdb.ini"
     88     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
     89     ;;
     90   *)
     91     GDBINIT=".gdbinit"
     92     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
     93     ;;
     94 esac
     95 AC_SUBST(GDBINIT)
     96 
     97 #We need this for the host.  BOUT header is in host order.
     98 AC_C_BIGENDIAN
     99 
    100 te_file=generic
    101 
    102 # Makefile target for installing gas in $(tooldir)/bin.
    103 install_tooldir=install-exec-tooldir
    104 
    105 canon_targets=""
    106 all_targets=no
    107 if test -n "$enable_targets" ; then
    108   for t in `echo $enable_targets | sed 's/,/ /g'`; do
    109     if test $t = "all"; then
    110       all_targets=yes
    111       continue
    112     fi
    113     result=`$ac_config_sub $t 2>/dev/null`
    114     if test -n "$result" ; then
    115       canon_targets="$canon_targets $result"
    116 #    else
    117 #      # Permit "all", etc.  We don't support it yet though.
    118 #      canon_targets="$canon_targets $t"
    119     fi
    120   done
    121   GAS_UNIQ(canon_targets)
    122 fi
    123 
    124 emulations=""
    125 
    126 for this_target in $target $canon_targets ; do
    127 
    128     targ=${this_target}
    129     . ${srcdir}/configure.tgt
    130 
    131     case ${target_cpu} in
    132       crisv32)
    133 	AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
    134 			   [Default CRIS architecture.])
    135 	;;
    136     esac
    137 
    138     if test ${this_target} = $target ; then
    139       target_cpu_type=${cpu_type}
    140     elif test ${target_cpu_type} != ${cpu_type} ; then
    141       continue
    142     fi
    143 
    144     generic_target=${cpu_type}-${target_vendor}-${target_os}
    145     case ${generic_target} in
    146       i386-*-sco3.2v5*)
    147 	if test ${this_target} = $target; then
    148 	  AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
    149 	fi
    150 	;;
    151 
    152       i386-*-msdosdjgpp* \
    153       | i386-*-go32* \
    154       | i386-go32-rtems*)
    155 	AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
    156 	;;
    157 
    158       i860-*-*)
    159 	AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
    160 	;;
    161 
    162       microblaze*)
    163         ;;
    164 
    165 changequote(,)dnl
    166       ppc-*-aix[5-9].*)
    167 changequote([,])dnl
    168 	AC_DEFINE(AIX_WEAK_SUPPORT, 1,
    169 		  [Define if using AIX 5.2 value for C_WEAKEXT.])
    170 	;;
    171       ppc-*-solaris*)
    172 	if test ${this_target} = $target; then
    173 	  AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
    174 		    [Define if default target is PowerPC Solaris.])
    175 	fi
    176 	if test x${endian} = xbig; then
    177 	  AC_MSG_ERROR(Solaris must be configured little endian)
    178 	fi
    179 	;;
    180 
    181       sh*-*-symbianelf*)
    182 	AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
    183 	;;
    184     esac
    185 
    186     if test ${this_target} = $target ; then
    187       endian_def=
    188       if test x${endian} = xbig; then
    189 	endian_def=1
    190       elif test x${endian} = xlittle; then
    191 	endian_def=0
    192       fi
    193       if test x${endian_def} != x; then
    194 	AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
    195 			   [Define as 1 if big endian.])
    196       fi
    197     fi
    198 
    199 # Other random stuff.
    200 
    201     case ${cpu_type} in
    202       mips)
    203 	# Set mips_cpu to the name of the default CPU.
    204 	case ${target_cpu} in
    205 	  mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
    206 	    mips_cpu=from-abi
    207 	    ;;
    208 	  mipsisa32 | mipsisa32el)
    209 	    mips_cpu=mips32
    210 	    ;;
    211 	  mipsisa32r2 | mipsisa32r2el)
    212 	    mips_cpu=mips32r2
    213 	    ;;
    214 	  mipsisa32r3 | mipsisa32r3el)
    215 	    mips_cpu=mips32r3
    216 	    ;;
    217 	  mipsisa32r5 | mipsisa32r5el)
    218 	    mips_cpu=mips32r5
    219 	    ;;
    220 	  mipsisa32r6 | mipsisa32r6el)
    221 	    mips_cpu=mips32r6
    222 	    ;;
    223 	  mipsisa64 | mipsisa64el)
    224 	    mips_cpu=mips64
    225 	    ;;
    226 	  mipsisa64r2 | mipsisa64r2el)
    227 	    mips_cpu=mips64r2
    228 	    ;;
    229 	  mipsisa64r3 | mipsisa64r3el)
    230 	    mips_cpu=mips64r3
    231 	    ;;
    232 	  mipsisa64r5 | mipsisa64r5el)
    233 	    mips_cpu=mips64r5
    234 	    ;;
    235 	  mipsisa64r6 | mipsisa64r6el)
    236 	    mips_cpu=mips64r6
    237 	    ;;
    238 	  mipstx39 | mipstx39el)
    239 	    mips_cpu=r3900
    240 	    ;;
    241 	  mips64vr | mips64vrel)
    242 	    mips_cpu=vr4100
    243 	    ;;
    244 	  mips64*-*android*)
    245 	    mips_cpu=mips64r6
    246 	    ;;
    247 	  mipsisa32r2* | mipsisa64r2*)
    248 changequote(,)dnl
    249 	    mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
    250 changequote([,])dnl
    251 	    ;;
    252 	  mipsisa32r6* | mipsisa64r6*)
    253 changequote(,)dnl
    254 	    mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
    255 changequote([,])dnl
    256 	    ;;
    257 	  mips64* | mipsisa64* | mipsisa32*)
    258 changequote(,)dnl
    259 	    mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
    260 changequote([,])dnl
    261 	    ;;
    262 	  mips*)
    263 changequote(,)dnl
    264 	    mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
    265 changequote([,])dnl
    266 	    ;;
    267 	  *)
    268 	    AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
    269 	    ;;
    270 	esac
    271 	# See whether it's appropriate to set E_MIPS_ABI_O32 for o32
    272 	# binaries.  It's a GNU extension that some OSes don't understand.
    273 	case ${target} in
    274 	  *-*-irix*)
    275 	    use_e_mips_abi_o32=0
    276 	    ;;
    277 	  *)
    278 	    use_e_mips_abi_o32=1
    279 	    ;;
    280 	esac
    281 	# Decide whether to generate 32-bit or 64-bit code by default.
    282 	# Used to resolve -march=from-abi when an embedded ABI is selected.
    283 	case ${target} in
    284 	  mips64*-*-* | mipsisa64*-*-*)
    285 	    mips_default_64bit=1
    286 	    ;;
    287 	  *)
    288 	    mips_default_64bit=0
    289 	    ;;
    290 	esac
    291 	# Decide which ABI to target by default.
    292 	case ${target} in
    293 	  mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* | mips64*-kfreebsd*-gnu)
    294 	    mips_default_abi=N32_ABI
    295 	    ;;
    296 	  mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
    297 	    mips_default_abi=O32_ABI
    298 	    ;;
    299 	  mips64*-openbsd* | mips64*-*android*)
    300 	    mips_default_abi=N64_ABI
    301 	    ;;
    302 	  *)
    303 	    mips_default_abi=NO_ABI
    304 	    ;;
    305 	esac
    306 	AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
    307 			   [Default CPU for MIPS targets. ])
    308 	AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
    309 			   [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
    310 	AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
    311 			   [Generate 64-bit code by default on MIPS targets. ])
    312 	AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
    313 			   [Choose a default ABI for MIPS targets. ])
    314 	;;
    315     esac
    316 
    317     # Do we need the opcodes library?
    318     case ${cpu_type} in
    319       vax | tic30)
    320 	;;
    321 
    322       *)
    323 	need_opcodes=yes
    324 
    325 	case "${enable_shared}" in
    326 	yes) shared_opcodes=true ;;
    327 	*opcodes*) shared_opcodes=true ;;
    328 	*) shared_opcodes=false ;;
    329 	esac
    330 	;;
    331     esac
    332 
    333     # Any other special object files needed ?
    334     case ${cpu_type} in
    335 
    336       bfin)
    337         echo ${extra_objects} | grep -s "bfin-parse.o"
    338         if test $? -ne 0 ; then
    339           extra_objects="$extra_objects bfin-parse.o"
    340         fi
    341 
    342         echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
    343         if test $? -ne 0 ; then
    344           extra_objects="$extra_objects bfin-lex-wrapper.o"
    345         fi
    346         ;;
    347 
    348       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
    349 	using_cgen=yes
    350 	;;
    351 
    352       m32c)
    353 	using_cgen=yes
    354 	;;
    355       frv)
    356 	using_cgen=yes
    357 	;;
    358       m68k)
    359 	case ${extra_objects} in
    360 	*m68k-parse.o*) ;;
    361 	*) extra_objects="$extra_objects m68k-parse.o" ;;
    362 	esac
    363 	;;
    364 
    365       mep)
    366 	using_cgen=yes
    367 	;;
    368 
    369       mips)
    370 	echo ${extra_objects} | grep -s "itbl-parse.o"
    371 	if test $? -ne 0 ; then
    372 	  extra_objects="$extra_objects itbl-parse.o"
    373 	fi
    374 
    375 	echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
    376 	if test $? -ne 0 ; then
    377 	  extra_objects="$extra_objects itbl-lex-wrapper.o"
    378 	fi
    379 
    380 	echo ${extra_objects} | grep -s "itbl-ops.o"
    381 	if test $? -ne 0 ; then
    382 	  extra_objects="$extra_objects itbl-ops.o"
    383 	fi
    384 	;;
    385 
    386       mt)
    387         using_cgen=yes
    388 	;;
    389 
    390       nds32)
    391         # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
    392 	# based on arch_name.
    393 	AC_MSG_CHECKING(for default configuration of --with-arch)
    394 	if test "x${with_arch}" != x; then
    395 	  case ${with_arch} in
    396             v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
    397 	      AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
    398 				 [Define value for nds32_arch_name])
    399               ;;
    400 	    *)
    401 	      AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
    402 	      ;;
    403           esac
    404 	fi
    405 	AC_MSG_RESULT($with_arch)
    406 
    407         # Decide features one by one.
    408         AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
    409 	if test "x${enable_dx_regs}" == xyes; then
    410 	  AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
    411 		    [Define value for nds32_dx_regs])
    412 	else
    413 	  AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
    414 		    [Define default value for nds32_dx_regs])
    415 	fi
    416 	AC_MSG_RESULT($enable_dx_regs)
    417 
    418         AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
    419 	if test "x${enable_perf_ext}" == xno; then
    420 	  AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
    421 		    [Define value for nds32_perf_ext])
    422 	else
    423 	  AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
    424 		    [Define default value for nds32_perf_ext])
    425 	fi
    426 	AC_MSG_RESULT($enable_perf_ext)
    427 
    428         AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
    429 	if test "x${enable_perf_ext2}" == xno; then
    430 	  AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
    431 		    [Define value for nds32_perf_ext2])
    432 	else
    433 	  AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
    434 		    [Define default value for nds32_perf_ext2])
    435 	fi
    436 	AC_MSG_RESULT($enable_perf_ext2)
    437 
    438         AC_MSG_CHECKING(for default configuration of --enable-string-ext)
    439 	if test "x${enable_string_ext}" == xno; then
    440 	  AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
    441 		    [Define value for nds32_string_ext])
    442 	else
    443 	  AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
    444 		    [Define default value for nds32_string_ext])
    445 	fi
    446 	AC_MSG_RESULT($enable_string_ext)
    447 
    448         AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
    449 	if test "x${enable_audio_ext}" == xno; then
    450 	  AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
    451 		    [Define value for nds32_audio_ext])
    452 	else
    453 	  AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
    454 		    [Define default value for nds32_audio_ext])
    455 	fi
    456 	AC_MSG_RESULT($enable_audio_ext)
    457 	;;
    458 
    459       i386 | s390 | sparc)
    460 	if test $this_target = $target ; then
    461 	  AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
    462 	fi
    463 	;;
    464 
    465       rl78)
    466         echo ${extra_objects} | grep -s "rl78-parse.o"
    467         if test $? -ne 0 ; then
    468           extra_objects="$extra_objects rl78-parse.o"
    469         fi
    470 	;;
    471 
    472       rx)
    473         echo ${extra_objects} | grep -s "rx-parse.o"
    474         if test $? -ne 0 ; then
    475           extra_objects="$extra_objects rx-parse.o"
    476         fi
    477 	;;
    478 
    479       xstormy16)
    480 	using_cgen=yes
    481 	;;
    482 
    483       xc16x)
    484 	using_cgen=yes
    485 	;;
    486 
    487       xtensa)
    488 	echo ${extra_objects} | grep -s "xtensa-relax.o"
    489 	if test $? -ne 0 ; then
    490 	  extra_objects="$extra_objects xtensa-relax.o"
    491 	fi
    492 	;;
    493 
    494       *)
    495 	;;
    496     esac
    497 
    498     if test $using_cgen = yes ; then
    499 	case "x${extra_objects}" in
    500 	*cgen.o*) ;;
    501 	*) extra_objects="$extra_objects cgen.o" ;;
    502 	esac
    503     fi
    504 
    505 # See if we really can support this configuration with the emulation code.
    506 
    507     if test $this_target = $target ; then
    508       obj_format=$fmt
    509       te_file=$em
    510     fi
    511 
    512    case ${te_file} in
    513       vms) extra_objects="$extra_objects te-vms.o" ;;
    514    esac
    515 
    516 # From target name and format, produce a list of supported emulations.
    517 
    518     case ${generic_target}-${fmt} in
    519       mips-*-*-*)	case "$endian" in
    520 			big)	emulation="mipsbelf mipslelf mipself" ;;
    521 			*)	emulation="mipslelf mipsbelf mipself" ;;
    522 			esac ;;
    523       # i386-pc-pe-coff != i386-pc-coff.
    524       i386-*-pe-coff)	;;
    525       # Uncommenting the next line will turn on support for i386 AOUT
    526       # for the default linux configuration
    527       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
    528       #
    529       i386-*-aout)	emulation="i386aout" ;;
    530       i386-*-coff)	emulation="i386coff" ;;
    531       i386-*-elf)	emulation="i386elf" ;;
    532 
    533       # Always all formats.  The first stated emulation becomes the default.
    534       cris-*-*aout*)	emulation="crisaout criself" ;;
    535       cris-*-*)		emulation="criself crisaout" ;;
    536     esac
    537 
    538     emulations="$emulations $emulation"
    539 
    540 done
    541 
    542 # Turn on all targets if possible
    543 if test ${all_targets} = "yes"; then
    544   case ${target_cpu_type} in
    545   i386)
    546     case ${obj_format} in
    547     aout)
    548       emulations="$emulations i386coff i386elf"
    549       ;;
    550     coff)
    551       emulations="$emulations i386aout i386elf"
    552     ;;
    553     elf)
    554       emulations="$emulations i386aout i386coff"
    555       ;;
    556     esac
    557   ;;
    558   x86_64)
    559     case ${obj_format} in
    560     aout)
    561       emulations="$emulations i386coff i386elf"
    562       ;;
    563     coff)
    564       emulations="$emulations i386aout i386elf"
    565     ;;
    566     elf)
    567       emulations="$emulations i386aout i386coff"
    568       ;;
    569     esac
    570   ;;
    571   esac
    572 fi
    573 
    574 # PE code has way too many macros tweaking behaviour
    575 case ${te_file} in
    576   pe*) emulations="" ;;
    577 esac
    578 
    579 # Assign floating point type.  Most processors with FP support
    580 # IEEE FP.  On those that don't support FP at all, usually IEEE
    581 # is emulated.
    582 case ${target_cpu} in
    583   vax | pdp11 )	atof=vax ;;
    584   *)		atof=ieee ;;
    585 esac
    586 
    587 case "${obj_format}" in
    588   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
    589 esac
    590 
    591 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
    592 cgen_cpu_prefix=""
    593 if test $using_cgen = yes ; then
    594   case ${target_cpu} in
    595     or1knd)
    596        cgen_cpu_prefix=or1k ;;
    597     *) cgen_cpu_prefix=${target_cpu} ;;
    598   esac
    599   AC_SUBST(cgen_cpu_prefix)
    600   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
    601 fi
    602 
    603 dnl
    604 dnl Make sure the desired support files exist.
    605 dnl
    606 
    607 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
    608   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
    609 fi
    610 
    611 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
    612   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
    613 fi
    614 
    615 # Some COFF configurations want these random other flags set.
    616 case ${obj_format} in
    617   coff)
    618     case ${target_cpu_type} in
    619       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
    620       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
    621       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
    622       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
    623     esac
    624     ;;
    625 esac
    626 
    627 # Getting this done right is going to be a bitch.  Each configuration specified
    628 # with --enable-targets=... should be checked for environment, format, cpu
    629 # setting.
    630 #
    631 # For each configuration, the necessary object file support code must be linked
    632 # in.  This might be only one, it might be up to four.  The necessary emulation
    633 # code needs to be provided, too.
    634 #
    635 # And then there's "--enable-targets=all"....
    636 #
    637 # For now, just always do it for MIPS ELF configurations.  Sigh.
    638 
    639 formats="${obj_format}"
    640 emfiles=""
    641 EMULATIONS=""
    642 GAS_UNIQ(emulations)
    643 for em in . $emulations ; do
    644   case $em in
    645     .)	continue ;;
    646     mipsbelf | mipslelf | mipself)
    647 	fmt=elf   file=mipself ;;
    648     *coff)
    649 	fmt=coff  file=$em ;;
    650     *aout)
    651 	fmt=aout file=$em ;;
    652     *elf)
    653 	fmt=elf file=$em ;;
    654   esac
    655   formats="$formats $fmt"
    656   emfiles="$emfiles e-$file.o"
    657   EMULATIONS="$EMULATIONS &$em,"
    658 done
    659 GAS_UNIQ(formats)
    660 GAS_UNIQ(emfiles)
    661 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
    662   for fmt in $formats ; do
    663     case $fmt in
    664       aout)	AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
    665       bout)	AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
    666       coff)	AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
    667       ecoff)	AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
    668       elf)	AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
    669       generic)	AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
    670       som)	AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
    671     esac
    672     extra_objects="$extra_objects obj-$fmt.o"
    673   done
    674   obj_format=multi
    675 fi
    676 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
    677   DEFAULT_EMULATION=`set . $emulations ; echo $2`
    678   # e-mipself has more than one emulation per file, e-i386* has just one at the
    679   # moment.  If only one emulation is specified, then don't define
    680   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
    681   case "${obj_format}${emfiles}" in
    682     multi* | *mipself*)
    683       extra_objects="$extra_objects $emfiles"
    684       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
    685   esac
    686 fi
    687 AC_SUBST(extra_objects)
    688 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
    689 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
    690 		   [Default emulation.])
    691 
    692 reject_dev_configs=yes
    693 
    694 case ${reject_dev_configs}-${dev} in
    695   yes-yes) # Oops.
    696     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
    697     ;;
    698 esac
    699 
    700 AC_SUBST(target_cpu_type)
    701 AC_SUBST(obj_format)
    702 AC_SUBST(te_file)
    703 AC_SUBST(install_tooldir)
    704 AC_SUBST(atof)
    705 dnl AC_SUBST(emulation)
    706 
    707 # do we need the opcodes library?
    708 case "${need_opcodes}" in
    709 yes)
    710   OPCODES_LIB=../opcodes/libopcodes.la
    711   ;;
    712 esac
    713 
    714 AC_SUBST(OPCODES_LIB)
    715 
    716 AC_DEFINE_UNQUOTED(TARGET_ALIAS,	"${target_alias}", [Target alias.])
    717 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,	"${target}",       [Canonical target.])
    718 AC_DEFINE_UNQUOTED(TARGET_CPU,		"${target_cpu}",   [Target CPU.])
    719 AC_DEFINE_UNQUOTED(TARGET_VENDOR,	"${target_vendor}", [Target vendor.])
    720 AC_DEFINE_UNQUOTED(TARGET_OS,		"${target_os}",    [Target OS.])
    721 
    722 AC_PROG_YACC
    723 AM_PROG_LEX
    724 
    725 ALL_LINGUAS="fr tr es rw id ru fi ja"
    726 ZW_GNU_GETTEXT_SISTER_DIR
    727 AM_PO_SUBDIRS
    728 
    729 AM_MAINTAINER_MODE
    730 AM_CONDITIONAL(GENINSRC_NEVER, false)
    731 AC_EXEEXT
    732 
    733 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
    734 ACX_HEADER_STRING
    735 
    736 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
    737 # people who are not cross-compiling but are compiling cross-assemblers.
    738 AC_MSG_CHECKING(whether compiling a cross-assembler)
    739 if test "${host}" = "${target}"; then
    740   cross_gas=no
    741 else
    742   cross_gas=yes
    743   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
    744 fi
    745 AC_MSG_RESULT($cross_gas)
    746 
    747 dnl ansidecl.h will deal with const
    748 dnl AC_C_CONST
    749 AC_FUNC_ALLOCA
    750 AC_C_INLINE
    751 
    752 # VMS doesn't have unlink.
    753 AC_CHECK_FUNCS(unlink remove, break)
    754 AC_CHECK_FUNCS(sbrk setlocale)
    755 
    756 AM_LC_MESSAGES
    757 
    758 # do we need the math library?
    759 case "${need_libm}" in
    760 yes)
    761   LT_LIB_M
    762   AC_SUBST(LIBM)
    763   ;;
    764 esac
    765 
    766 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
    767 # enough, but on some of those systems, the assert macro relies on requoting
    768 # working properly!
    769 GAS_WORKING_ASSERT
    770 
    771 # On some systems, the system header files may not declare malloc, realloc,
    772 # and free.  There are places where gas needs these functions to have been
    773 # declared -- such as when taking their addresses.
    774 gas_test_headers="
    775 #ifdef HAVE_MEMORY_H
    776 #include <memory.h>
    777 #endif
    778 #ifdef HAVE_STRING_H
    779 #include <string.h>
    780 #else
    781 #ifdef HAVE_STRINGS_H
    782 #include <strings.h>
    783 #endif
    784 #endif
    785 #ifdef HAVE_STDLIB_H
    786 #include <stdlib.h>
    787 #endif
    788 #ifdef HAVE_UNISTD_H
    789 #include <unistd.h>
    790 #endif
    791 "
    792 
    793 # Does errno.h declare errno, or do we have to add a separate declaration
    794 # for it?
    795 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
    796 #ifdef HAVE_ERRNO_H
    797 #include <errno.h>
    798 #endif
    799 ])
    800 
    801 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
    802 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
    803 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
    804 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
    805 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
    806 if test $gas_cv_decl_getopt_unistd_h = yes; then
    807   AC_DEFINE([HAVE_DECL_GETOPT], 1,
    808 	    [Is the prototype for getopt in <unistd.h> in the expected format?])
    809 fi
    810 
    811 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
    812 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
    813 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
    814 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
    815 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
    816 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
    817 
    818 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf])
    819 
    820 BFD_BINARY_FOPEN
    821 
    822 # Link in zlib if we can.  This allows us to write compressed debug sections.
    823 AM_ZLIB
    824 
    825 # Support for VMS timestamps via cross compile
    826 
    827 if test "$ac_cv_header_time_h" = yes; then
    828   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
    829 fi
    830 
    831 if test "$ac_cv_header_sys_stat_h" = yes; then
    832     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
    833     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
    834 fi
    835 
    836 
    837 dnl Required for html, pdf, install-pdf and install-html targets.
    838 AC_SUBST(datarootdir)
    839 AC_SUBST(docdir)
    840 AC_SUBST(htmldir)
    841 AC_SUBST(pdfdir)
    842 
    843 dnl This must come last.
    844 
    845 dnl We used to make symlinks to files in the source directory, but now
    846 dnl we just use the right name for .c files, and create .h files in
    847 dnl the build directory which include the right .h file.  Make sure
    848 dnl the old symlinks don't exist, so that a reconfigure in an existing
    849 dnl directory behaves reasonably.
    850 
    851 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
    852 AC_CONFIG_COMMANDS([default],
    853 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
    854  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
    855  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
    856  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
    857  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
    858  if test "x$cgen_cpu_prefix" != x ; then
    859    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
    860  fi],
    861 [target_cpu_type=${target_cpu_type}
    862  cgen_cpu_prefix=${cgen_cpu_prefix}
    863  obj_format=${obj_format}
    864  te_file=${te_file}])
    865 
    866 AC_OUTPUT
    867