gas/configure.in

   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
   7 dnl v2.5 needed for --bindir et al
   8 AC_PREREQ(2.5)
   9 AC_INIT(as.h)
  10
  11 AC_CANONICAL_SYSTEM
  12
  13 AM_INIT_AUTOMAKE(gas, 2.8.2)
  14
  15 AM_PROG_LIBTOOL
  16
  17 user_bfd_gas=
  18 AC_ARG_ENABLE(bfd-assembler,
  19 [  --enable-bfd-assembler  use BFD back end for writing object files],
  20 [case "${enableval}" in
  21   yes) need_bfd=yes user_bfd_gas=yes ;;
  22   no)  user_bfd_gas=no ;;
  23   *)   AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
  24 esac])dnl
  25 AC_ARG_ENABLE(targets,
  26 [    targets            alternative target configurations besides the primary],
  27 [case "${enableval}" in
  28   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
  29             ;;
  30   no)       enable_targets= ;;
  31   *)        enable_targets=$enableval ;;
  32 esac])dnl
  33 AC_ARG_ENABLE(commonbfdlib,
  34 [  --enable-commonbfdlib   build shared BFD/opcodes/libiberty library],
  35 [case "${enableval}" in
  36   yes) commonbfdlib=true ;;
  37   no)  commonbfdlib=false ;;
  38   *)   AC_MSG_ERROR([bad value ${enableval} for BFD commonbfdlib option]) ;;
  39 esac])dnl
  40
  41 # Generate a header file
  42 AM_CONFIG_HEADER(config.h:config.in)
  43
  44 te_file=generic
  45
  46 canon_targets=""
  47 if test -n "$enable_targets" ; then
  48   for t in `echo $enable_targets | sed 's/,/ /g'`; do
  49     result=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $t 2>/dev/null`
  50     if test -n "$result" ; then
  51       canon_targets="$canon_targets $result"
  52 #    else
  53 #      # Permit "all", etc.  We don't support it yet though.
  54 #      canon_targets="$canon_targets $t"
  55     fi
  56   done
  57   GAS_UNIQ(canon_targets)
  58 fi
  59
  60 emulations=""
  61
  62 for this_target in $target $canon_targets ; do
  63
  64 changequote(,)dnl
  65     eval `echo $this_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
  66 changequote([,])dnl
  67
  68     # check for architecture variants
  69     arch=
  70     endian=
  71     case ${cpu} in
  72       armeb)            cpu_type=arm endian=big ;;
  73       arm*)             cpu_type=arm endian=little ;;
  74       thumb*)           cpu_type=arm endian=little ;;
  75       hppa*)            cpu_type=hppa ;;
  76 changequote(,)dnl
  77       i[456]86)         cpu_type=i386 ;;
  78       m680[012346]0)    cpu_type=m68k ;;
  79       m68008)           cpu_type=m68k ;;
  80       m683??)           cpu_type=m68k ;;
  81 changequote([,])dnl
  82       m8*)              cpu_type=m88k ;;
  83       mips*el)          cpu_type=mips endian=little ;;
  84       mips*5900*)       cpu_type=mips endian=little ;;
  85       mips*)            cpu_type=mips endian=big ;;
  86       powerpcle*)       cpu_type=ppc endian=little ;;
  87       powerpc*)         cpu_type=ppc endian=big ;;
  88       rs6000*)          cpu_type=ppc ;;
  89       sparclite*)       cpu_type=sparc arch=sparclite ;;
  90       sparclet*)        cpu_type=sparc arch=sparclet ;;
  91       sparc64*)         cpu_type=sparc arch=v9 ;;
  92       sparc*)           cpu_type=sparc arch=sparclite ;; # ??? See tc-sparc.c.
  93       v850*)            cpu_type=v850 ;;
  94       *)                cpu_type=${cpu} ;;
  95     esac
  96
  97     if test ${this_target} = $target ; then
  98       target_cpu_type=${cpu_type}
  99       if test x${endian} = xbig; then
 100         AC_DEFINE(TARGET_BYTES_BIG_ENDIAN, 1)
 101       elif test x${endian} = xlittle; then
 102         AC_DEFINE(TARGET_BYTES_BIG_ENDIAN, 0)
 103       fi
 104     elif test ${target_cpu_type} != ${cpu_type} ; then
 105       continue
 106     fi
 107
 108     generic_target=${cpu_type}-$vendor-$os
 109     dev=no
 110     bfd_gas=no
 111     em=generic
 112
 113     # assign object format
 114     case ${generic_target} in
 115       a29k-*-coff)          fmt=coff ;;
 116       a29k-amd-udi)         fmt=coff ;;
 117       a29k-amd-ebmon)       fmt=coff ;;
 118       a29k-nyu-sym1)        fmt=coff ;;
 119       a29k-*-vxworks*)      fmt=coff ;;
 120
 121       alpha-*-*vms*)        fmt=evax ;;
 122       alpha-*-netware*)     fmt=ecoff ;;
 123       alpha-*-openbsd*)     fmt=ecoff ;;
 124       alpha-*-osf*)         fmt=ecoff ;;
 125       alpha-*-linuxecoff*)  fmt=ecoff ;;
 126       alpha-*-linux*)       fmt=elf em=linux ;;
 127
 128       arc-*-elf*)           fmt=elf bfd_gas=yes ;;
 129
 130       arm-*-riscix*)        fmt=aout em=riscix ;;
 131       arm-*-aout)           fmt=aout ;;
 132       arm-*-coff | thumb-*-coff)           fmt=coff ;;
 133       arm-*-riscix*)        fmt=aout ;;
 134       arm-*-pe)             fmt=coff em=pe ;;
 135
 136       d10v-*-*)             fmt=elf bfd_gas=yes ;;
 137 # start-sanitize-d30v
 138       d30v-*-*)             fmt=elf bfd_gas=yes ;;
 139 # end-sanitize-d30v
 140
 141       hppa-*-*elf*)         fmt=elf em=hppa ;;
 142       hppa-*-lites*)        fmt=elf em=hppa ;;
 143       hppa-*-osf*)          fmt=som em=hppa ;;
 144       hppa-*-rtems*)        fmt=elf em=hppa ;;
 145       hppa-*-hpux*)         fmt=som em=hppa ;;
 146       hppa-*-bsd*)          fmt=som em=hppa ;;
 147       hppa-*-hiux*)         fmt=som em=hppa ;;
 148
 149       h8300-*-coff)         fmt=coff ;;
 150
 151       i386-ibm-aix*)        fmt=coff em=i386aix ;;
 152       i386-sequent-bsd*)    fmt=aout em=dynix bfd_gas=yes ;;
 153       i386-*-bsd*)          fmt=aout em=386bsd ;;
 154       i386-*-netbsd0.8)     fmt=aout em=386bsd ;;
 155       i386-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes;;
 156       i386-*-openbsd*)      fmt=aout em=nbsd bfd_gas=yes;;
 157       i386-*-linux*aout* | i386-*-linuxoldld)   fmt=aout em=linux ;;
 158       i386-*-linux*coff*)   fmt=coff em=linux ;;
 159       i386-*-linux*)        fmt=elf em=linux ;;
 160       i386-*-lynxos*)       fmt=coff em=lynx ;;
 161       i386-*-sysv4* | i386-*-solaris* | i386-*-elf | i386-*-freebsdelf*)
 162                             fmt=elf ;;
 163       i386-*-sco*elf*)      fmt=elf
 164                             if test ${this_target} = $target; then
 165                                 AC_DEFINE(SCO_ELF)
 166                             fi
 167                             ;;
 168       i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
 169                             fmt=coff ;;
 170       i386-*-vsta)          fmt=aout ;;
 171       i386-*-msdosdjgpp* | i386-*-go32*)
 172                             fmt=coff em=go32;;
 173       i386-*-rtems*)        fmt=coff ;;
 174       i386-*-gnu*)          fmt=elf ;;
 175       i386-*-mach*)
 176                             fmt=aout em=mach bfd_gas=yes ;;
 177       i386-*-msdos*)        fmt=aout ;;
 178       i386-*-moss*)         fmt=elf ;;
 179       i386-*-pe)            fmt=coff em=pe ;;
 180       i386-*-cygwin32)      fmt=coff em=pe bfd_gas=yes ;;
 181       i386-*-*nt)           fmt=coff em=pe ;;
 182       i960-*-bout)          fmt=bout ;;
 183       i960-*-coff)          fmt=coff em=ic960 ;;
 184       i960-*-rtems*)        fmt=coff em=ic960 ;;
 185       i960-*-nindy*)        fmt=bout ;;
 186       i960-*-vxworks4*)     fmt=bout ;;
 187       i960-*-vxworks5.0)    fmt=bout ;;
 188       i960-*-vxworks5.*)    fmt=coff em=ic960 ;;
 189       i960-*-vxworks*)      fmt=bout ;;
 190
 191       m32r-*-*)             fmt=elf bfd_gas=yes ;;
 192
 193       m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
 194                             fmt=aout em=sun3 ;;
 195       m68k-motorola-sysv*)  fmt=coff em=delta ;;
 196       m68k-bull-sysv3*)     fmt=coff em=dpx2 ;;
 197       m68k-apollo-*)        fmt=coff em=apollo ;;
 198       m68k-*-sysv4*) # must be before -sysv*
 199                             fmt=elf em=svr4 ;;
 200       m68k-*-elf*)          fmt=elf ;;
 201       m68k-*-coff | m68k-*-sysv* | m68k-*-rtems*)
 202                             fmt=coff ;;
 203       m68k-*-hpux*)         fmt=hp300 em=hp300 ;;
 204       m68k-*-linux*aout*)   fmt=aout em=linux ;;
 205       m68k-*-linux*)        fmt=elf em=linux ;;
 206       m68k-*-lynxos*)       fmt=coff em=lynx ;;
 207       m68k-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes ;;
 208       m68k-*-openbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 209       m68k-apple-aux*)      fmt=coff em=aux ;;
 210       m68k-*-psos*)         fmt=elf em=psos;;
 211
 212       m88k-motorola-sysv3*) fmt=coff em=delt88 ;;
 213       m88k-*-coff*)         fmt=coff ;;
 214
 215       # don't change em like *-*-bsd does
 216       mips-dec-netbsd*)     fmt=elf endian=little ;;
 217       mips-dec-openbsd*)    fmt=elf endian=little ;;
 218       mips-dec-bsd*)        fmt=aout ;;
 219       mips-sony-bsd*)       fmt=ecoff ;;
 220       mips-*-bsd*)          AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
 221       mips-*-ultrix*)       fmt=ecoff endian=little ;;
 222       mips-*-osf*)          fmt=ecoff endian=little ;;
 223       mips-*-ecoff*)        fmt=ecoff ;;
 224       mips-*-ecoff*)        fmt=ecoff ;;
 225       mips-*-irix6*)        fmt=elf ;;
 226       mips-*-irix5*)        fmt=elf ;;
 227       mips-*-irix*)         fmt=ecoff ;;
 228       mips-*-lnews*)        fmt=ecoff em=lnews ;;
 229       mips-*-riscos*)       fmt=ecoff ;;
 230       mips-*-sysv*)         fmt=ecoff ;;
 231       mips-*-elf* | mips-*-rtems* | mips-*-linux* | mips-*-gnu* | mips-*-openbsd*)
 232                             fmt=elf ;;
 233       mn10200-*-*)          fmt=elf bfd_gas=yes ;;
 234       mn10300-*-*)          fmt=elf bfd_gas=yes ;;
 235       ppc-*-pe | ppc-*-cygwin32 | ppc-*-winnt*)
 236                             fmt=coff em=pe ;;
 237       ppc-*-aix*)           fmt=coff ;;
 238       ppc-*-beos*)          fmt=coff ;;
 239       ppc-*-*bsd* | ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
 240                             fmt=elf ;;
 241       ppc-*-linux*)         fmt=elf
 242                             case "$endian" in
 243                             big)  ;;
 244                             *)    AC_MSG_ERROR(Linux must be configured big endian) ;;
 245                             esac
 246                             ;;
 247       ppc-*-solaris*)       fmt=elf
 248                             if test ${this_target} = $target; then
 249                                 AC_DEFINE(TARGET_SOLARIS_COMMENT)
 250                             fi
 251                             if test x${endian} = xbig; then
 252                                 AC_MSG_ERROR(Solaris must be configured little endian)
 253                             fi
 254                             ;;
 255       ppc-*-rtems*)         fmt=elf ;;
 256       ppc-*-macos* | ppc-*-mpw*)
 257                             fmt=coff em=macos ;;
 258       ppc-*-netware*)       fmt=elf em=ppcnw ;;
 259
 260       sh-*-elf*)            fmt=elf ;;
 261       sh-*-coff*)           fmt=coff ;;
 262       sh-*-rtems*)          fmt=elf ;;
 263
 264       ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
 265       ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;
 266       ns32k-pc532-openbsd*) fmt=aout em=nbsd532 ;;
 267
 268       sparc-*-rtems*)       fmt=aout ;;
 269       sparc-*-sunos4*)      fmt=aout em=sun3 ;;
 270       sparc-*-aout | sparc*-*-vxworks*)
 271                             fmt=aout em=sparcaout ;;
 272       sparc-*-coff)         fmt=coff ;;
 273       sparc-*-linux*aout*)  fmt=aout em=linux ;;
 274       sparc-*-linux*)       fmt=elf em=linux ;;
 275       sparc-*-lynxos*)      fmt=coff em=lynx ;;
 276       sparc-fujitsu-none)   fmt=aout ;;
 277       sparc-*-elf | sparc-*-sysv4* | sparc-*-solaris*)
 278                             fmt=elf ;;
 279       sparc-*-netbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 280       sparc-*-openbsd*)     fmt=aout em=nbsd bfd_gas=yes ;;
 281
 282 # start-sanitize-tic80
 283       tic80-*-*)            fmt=coff ;;
 284 # end-sanitize-tic80
 285       v850-*-*)             fmt=elf bfd_gas=yes ;;
 286
 287 # start-sanitize-v850e
 288       v850e-*-*)            fmt=elf bfd_gas=yes ;;
 289       v850eq-*-*)           fmt=elf bfd_gas=yes ;;
 290 # end-sanitize-v850e
 291       vax-*-bsd* | vax-*-ultrix*)
 292                             fmt=aout ;;
 293       vax-*-vms)            fmt=vms ;;
 294
 295       z8k-*-coff | z8k-*-sim)
 296                             fmt=coff ;;
 297
 298       w65-*-*)              fmt=coff ;;
 299
 300       *-*-aout | *-*-scout)
 301                             fmt=aout ;;
 302       *-*-nindy*)
 303                             fmt=bout ;;
 304       *-*-bsd*)
 305                             fmt=aout em=sun3 ;;
 306       *-*-generic)          fmt=generic ;;
 307       *-*-xray | *-*-hms)   fmt=coff ;;
 308       *-*-sim)              fmt=coff ;;
 309       *-*-elf | *-*-sysv4* | *-*-solaris*)
 310                             AC_MSG_WARN(GAS support for ${generic_target} is incomplete.)
 311                             fmt=elf dev=yes ;;
 312       *-*-vxworks)          fmt=aout ;;
 313       *-*-netware)          fmt=elf ;;
 314     esac
 315
 316     case ${cpu_type}-${fmt} in
 317       alpha-*)  bfd_gas=yes ;;
 318       arm-*)    bfd_gas=yes ;;
 319     # not yet
 320     # i386-aout)        bfd_gas=preferred ;;
 321       mips-*)   bfd_gas=yes ;;
 322       ns32k-*)  bfd_gas=yes ;;
 323       ppc-*)    bfd_gas=yes ;;
 324       sparc-*)  bfd_gas=yes ;;
 325       *-elf)    bfd_gas=yes ;;
 326       *-ecoff)  bfd_gas=yes ;;
 327       *-som)    bfd_gas=yes ;;
 328       *)                ;;
 329     esac
 330
 331 # Other random stuff.
 332
 333     # do we need the opcodes library?
 334     case ${cpu_type} in
 335       vax | i386)
 336         ;;
 337       *)
 338         need_opcodes=yes
 339         if test "${shared_opcodes}" = "true"; then
 340           # A shared libopcodes must be linked against libbfd.
 341           need_bfd=yes
 342         fi
 343         ;;
 344     esac
 345
 346     case ${cpu_type} in
 347       m32r)
 348         case ${extra_objects} in
 349         *cgen.o*) ;;
 350         *) extra_objects="$extra_objects cgen.o"
 351            AC_DEFINE(USING_CGEN)
 352            ;;
 353         esac
 354         ;;
 355
 356       m68k)
 357         case ${extra_objects} in
 358         *m68k-parse.o*) ;;
 359         *) extra_objects="$extra_objects m68k-parse.o" ;;
 360         esac
 361         ;;
 362
 363       mips)
 364         echo ${extra_objects} | grep -s "itbl-parse.o"
 365         if test $? -ne 0 ; then
 366           extra_objects="$extra_objects itbl-parse.o"
 367         fi
 368
 369         echo ${extra_objects} | grep -s "itbl-lex.o"
 370         if test $? -ne 0 ; then
 371           extra_objects="$extra_objects itbl-lex.o"
 372         fi
 373
 374         echo ${extra_objects} | grep -s "itbl-ops.o"
 375         if test $? -ne 0 ; then
 376           extra_objects="$extra_objects itbl-ops.o"
 377         fi
 378         ;;
 379
 380       sparc)
 381         AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}")
 382         ;;
 383
 384       *)
 385         ;;
 386     esac
 387
 388 # See if we really can support this configuration with the emulation code.
 389
 390     if test $this_target = $target ; then
 391       primary_bfd_gas=$bfd_gas
 392       obj_format=$fmt
 393       te_file=$em
 394
 395       if test $bfd_gas = no ; then
 396         # Can't support other configurations this way.
 397         break
 398       fi
 399     elif test $bfd_gas = no ; then
 400       # Can't support this configuration.
 401       break
 402     fi
 403
 404 # From target name and format, produce a list of supported emulations.
 405
 406     case ${generic_target}-${fmt} in
 407       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 408       mips-*-linux*-*)  case "$endian" in
 409                         big)    emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 410                         *)      emulation="mipslelf mipsbelf mipself mipslecoff mipsbecoff mipsecoff" ;;
 411                         esac ;;
 412       mips-*-lnews*-ecoff) ;;
 413       mips-*-*-ecoff)   case "$endian" in
 414                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 415                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 416                         esac ;;
 417       mips-*-*-elf)     case "$endian" in
 418                         big)    emulation="mipsbelf mipslelf mipself" ;;
 419                         *)      emulation="mipslelf mipsbelf mipself" ;;
 420       # Uncommenting the next line will turn on support for i386 COFF
 421       # in any i386 ELF configuration.  This probably doesn't work
 422       # correctly.
 423       # i386-*-*-elf)   emulation="i386coff i386elf" ;;
 424                         esac ;;
 425     esac
 426
 427     emulations="$emulations $emulation"
 428
 429 done
 430
 431 # Assign floating point type.  Most processors with FP support
 432 # IEEE FP.  On those that don't support FP at all, usually IEEE
 433 # is emulated.
 434 case ${target_cpu} in
 435   vax | tahoe ) atof=${target_cpu} ;;
 436   *)            atof=ieee ;;
 437 esac
 438
 439 case "${obj_format}" in
 440   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 441 esac
 442
 443 dnl
 444 dnl Make sure the desired support files exist.
 445 dnl
 446
 447 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 448   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 449 fi
 450
 451 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 452   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 453 fi
 454
 455 case ${user_bfd_gas}-${primary_bfd_gas} in
 456   yes-yes | no-no)
 457     # We didn't override user's choice.
 458     ;;
 459   no-yes)
 460     AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
 461     ;;
 462   no-preferred)
 463     primary_bfd_gas=no
 464     ;;
 465   *-preferred)
 466     primary_bfd_gas=yes
 467     ;;
 468   yes-*)
 469     primary_bfd_gas=yes
 470     ;;
 471   -*)
 472     # User specified nothing.
 473     ;;
 474 esac
 475
 476 # Some COFF configurations want these random other flags set.
 477 case ${obj_format} in
 478   coff)
 479     case ${target_cpu_type} in
 480       i386) AC_DEFINE(I386COFF) ;;
 481       m68k) AC_DEFINE(M68KCOFF) ;;
 482       m88k) AC_DEFINE(M88KCOFF) ;;
 483     esac
 484     ;;
 485 esac
 486
 487 # Getting this done right is going to be a bitch.  Each configuration specified
 488 # with --enable-targets=... should be checked for environment, format, cpu, and
 489 # bfd_gas setting.
 490 #
 491 # For each configuration, the necessary object file support code must be linked
 492 # in.  This might be only one, it might be up to four.  The necessary emulation
 493 # code needs to be provided, too.
 494 #
 495 # And then there's "--enable-targets=all"....
 496 #
 497 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 498
 499 formats="${obj_format}"
 500 emfiles=""
 501 EMULATIONS=""
 502 GAS_UNIQ(emulations)
 503 for em in . $emulations ; do
 504   case $em in
 505     .)  continue ;;
 506     mipsbelf | mipslelf)
 507         fmt=elf   file=mipself ;;
 508     mipsbecoff | mipslecoff)
 509         fmt=ecoff file=mipsecoff ;;
 510     i386coff)
 511         fmt=coff  file=i386coff ;;
 512     i386elf)
 513         fmt=elf   file=i386elf ;;
 514   esac
 515   formats="$formats $fmt"
 516   emfiles="$emfiles e-$file.o"
 517   EMULATIONS="$EMULATIONS &$em,"
 518 done
 519 GAS_UNIQ(formats)
 520 GAS_UNIQ(emfiles)
 521 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 522   for fmt in $formats ; do
 523     case $fmt in
 524       aout)     AC_DEFINE(OBJ_MAYBE_AOUT)    ;;
 525       bout)     AC_DEFINE(OBJ_MAYBE_BOUT)    ;;
 526       coff)     AC_DEFINE(OBJ_MAYBE_COFF)    ;;
 527       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF)   ;;
 528       elf)      AC_DEFINE(OBJ_MAYBE_ELF)     ;;
 529       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
 530       hp300)    AC_DEFINE(OBJ_MAYBE_HP300)   ;;
 531       ieee)     AC_DEFINE(OBJ_MAYBE_IEEE)    ;;
 532       som)      AC_DEFINE(OBJ_MAYBE_SOM)     ;;
 533       vms)      AC_DEFINE(OBJ_MAYBE_VMS)     ;;
 534     esac
 535     extra_objects="$extra_objects obj-$fmt.o"
 536   done
 537   obj_format=multi
 538 fi
 539 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 540   te_file=multi
 541   extra_objects="$extra_objects $emfiles"
 542   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 543   AC_DEFINE(USE_EMULATIONS)
 544 fi
 545 AC_SUBST(extra_objects)
 546 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
 547 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
 548
 549 case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
 550   yes-*-coff)   need_bfd=yes ;;
 551   no-*-coff)    need_bfd=yes
 552                 AC_DEFINE(MANY_SEGMENTS) ;;
 553 esac
 554
 555 reject_dev_configs=yes
 556
 557 case ${reject_dev_configs}-${dev} in
 558   yes-yes) # Oops.
 559     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 560     ;;
 561 esac
 562
 563 AC_SUBST(target_cpu_type)
 564 AC_SUBST(obj_format)
 565 AC_SUBST(te_file)
 566 AC_SUBST(atof)
 567 dnl AC_SUBST(emulation)
 568
 569 case "${primary_bfd_gas}" in
 570   yes)  AC_DEFINE(BFD_ASSEMBLER)
 571         need_bfd=yes ;;
 572 esac
 573
 574 # do we need the opcodes library?
 575 case "${need_opcodes}" in
 576 yes)
 577   OPCODES_LIB=../opcodes/libopcodes.la
 578   ;;
 579 esac
 580
 581 case "${need_bfd}" in
 582 yes)
 583   BFDLIB=../bfd/libbfd.la
 584   ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
 585   ;;
 586 esac
 587
 588 AC_SUBST(BFDLIB)
 589 AC_SUBST(OPCODES_LIB)
 590
 591 AC_SUBST(ALL_OBJ_DEPS)
 592
 593 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}")
 594 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}")
 595 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}")
 596 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}")
 597 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}")
 598
 599 AC_PROG_CC
 600 AC_PROG_INSTALL
 601
 602 AC_PROG_YACC
 603 AC_PROG_LEX
 604 AC_DECL_YYTEXT
 605
 606 AM_MAINTAINER_MODE
 607 AM_CYGWIN32
 608 AM_EXEEXT
 609
 610 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
 611
 612 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 613 # people who are not cross-compiling but are compiling cross-assemblers.
 614 AC_MSG_CHECKING(whether compiling a cross-assembler)
 615 if test "${host}" = "${target}"; then
 616   cross_gas=no
 617 else
 618   cross_gas=yes
 619   AC_DEFINE(CROSS_COMPILE)
 620 fi
 621 AC_MSG_RESULT($cross_gas)
 622
 623 dnl ansidecl.h will deal with const
 624 dnl AC_CONST
 625 AC_FUNC_ALLOCA
 626 AC_C_INLINE
 627
 628 # VMS doesn't have unlink.
 629 AC_CHECK_FUNCS(unlink remove, break)
 630
 631 # Some systems don't have sbrk().
 632 AC_CHECK_FUNCS(sbrk)
 633
 634 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 635 # enough, but on some of those systems, the assert macro relies on requoting
 636 # working properly!
 637 GAS_WORKING_ASSERT
 638
 639 # On some systems, the system header files may not declare malloc, realloc,
 640 # and free.  There are places where gas needs these functions to have been
 641 # declared -- such as when taking their addresses.
 642 gas_test_headers="
 643 #ifdef HAVE_MEMORY_H
 644 #include <memory.h>
 645 #endif
 646 #ifdef HAVE_STRING_H
 647 #include <string.h>
 648 #else
 649 #ifdef HAVE_STRINGS_H
 650 #include <strings.h>
 651 #endif
 652 #endif
 653 #ifdef HAVE_STDLIB_H
 654 #include <stdlib.h>
 655 #endif
 656 #ifdef HAVE_UNISTD_H
 657 #include <unistd.h>
 658 #endif
 659 "
 660 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 661 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 662 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 663 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 664
 665 # Does errno.h declare errno, or do we have to add a separate declaration
 666 # for it?
 667 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 668 #ifdef HAVE_ERRNO_H
 669 #include <errno.h>
 670 #endif
 671 ])
 672
 673 dnl This must come last.
 674
 675 dnl We used to make symlinks to files in the source directory, but now
 676 dnl we just use the right name for .c files, and create .h files in
 677 dnl the build directory which include the right .h file.  Make sure
 678 dnl the old symlinks don't exist, so that a reconfigure in an existing
 679 dnl directory behaves reasonably.
 680
 681 AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in,
 682 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 683  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 684  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 685  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 686  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 687  case ${target_cpu_type} in
 688  m32r) echo '#include "opcodes/'"${target_cpu_type}"'-opc.h"' > cgen-opc.h ;;
 689  esac],
 690 [target_cpu_type=${target_cpu_type}
 691  obj_format=${obj_format}
 692  te_file=${te_file}])