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 ${cpu} in
  72       alpha*)           cpu_type=alpha ;;
  73       armeb)            cpu_type=arm endian=big ;;
  74       arm*)             cpu_type=arm endian=little ;;
  75       thumb*)           cpu_type=arm endian=little ;;
  76       hppa*)            cpu_type=hppa ;;
  77 changequote(,)dnl
  78       i[456]86)         cpu_type=i386 ;;
  79       m680[012346]0)    cpu_type=m68k ;;
  80       m68008)           cpu_type=m68k ;;
  81       m683??)           cpu_type=m68k ;;
  82 changequote([,])dnl
  83       m8*)              cpu_type=m88k ;;
  84       mips*el)          cpu_type=mips endian=little ;;
  85 # start-sanitize-r5900
  86       mips*5900*)       cpu_type=mips endian=little ;;
  87 # end-sanitize-r5900
  88       mips*)            cpu_type=mips endian=big ;;
  89       powerpcle*)       cpu_type=ppc endian=little ;;
  90       powerpc*)         cpu_type=ppc endian=big ;;
  91       rs6000*)          cpu_type=ppc ;;
  92       sparclite*)       cpu_type=sparc arch=sparclite ;;
  93       sparclet*)        cpu_type=sparc arch=sparclet ;;
  94       sparc64*)         cpu_type=sparc arch=v9-64 ;;
  95       sparc*)           cpu_type=sparc arch=sparclite ;; # ??? See tc-sparc.c.
  96       v850*)            cpu_type=v850 ;;
  97       *)                cpu_type=${cpu} ;;
  98     esac
  99
 100     if test ${this_target} = $target ; then
 101       target_cpu_type=${cpu_type}
 102       if test x${endian} = xbig; then
 103         AC_DEFINE(TARGET_BYTES_BIG_ENDIAN, 1)
 104       elif test x${endian} = xlittle; then
 105         AC_DEFINE(TARGET_BYTES_BIG_ENDIAN, 0)
 106       fi
 107     elif test ${target_cpu_type} != ${cpu_type} ; then
 108       continue
 109     fi
 110
 111     generic_target=${cpu_type}-$vendor-$os
 112     dev=no
 113     bfd_gas=no
 114     em=generic
 115
 116     # assign object format
 117     case ${generic_target} in
 118       a29k-*-coff)          fmt=coff ;;
 119       a29k-amd-udi)         fmt=coff ;;
 120       a29k-amd-ebmon)       fmt=coff ;;
 121       a29k-nyu-sym1)        fmt=coff ;;
 122       a29k-*-vxworks*)      fmt=coff ;;
 123
 124       alpha*-*-*vms*)       fmt=evax ;;
 125       alpha*-*-netware*)    fmt=ecoff ;;
 126       alpha*-*-openbsd*)    fmt=ecoff ;;
 127       alpha*-*-osf*)        fmt=ecoff ;;
 128       alpha*-*-linuxecoff*) fmt=ecoff ;;
 129       alpha*-*-linux*)      fmt=elf em=linux ;;
 130
 131       arc-*-elf*)           fmt=elf bfd_gas=yes ;;
 132
 133       arm-*-riscix*)        fmt=aout em=riscix ;;
 134       arm-*-aout)           fmt=aout ;;
 135       arm-*-coff | thumb-*-coff)           fmt=coff ;;
 136       arm-*-riscix*)        fmt=aout ;;
 137       arm-*-pe)             fmt=coff em=pe ;;
 138
 139       d10v-*-*)             fmt=elf bfd_gas=yes ;;
 140 # start-sanitize-d30v
 141       d30v-*-*)             fmt=elf bfd_gas=yes ;;
 142 # end-sanitize-d30v
 143
 144       hppa-*-*elf*)         fmt=elf em=hppa ;;
 145       hppa-*-lites*)        fmt=elf em=hppa ;;
 146       hppa-*-osf*)          fmt=som em=hppa ;;
 147       hppa-*-rtems*)        fmt=elf em=hppa ;;
 148       hppa-*-hpux*)         fmt=som em=hppa ;;
 149       hppa-*-bsd*)          fmt=som em=hppa ;;
 150       hppa-*-hiux*)         fmt=som em=hppa ;;
 151
 152       h8300-*-coff)         fmt=coff ;;
 153
 154       i386-ibm-aix*)        fmt=coff em=i386aix ;;
 155       i386-sequent-bsd*)    fmt=aout em=dynix bfd_gas=yes ;;
 156       i386-*-bsd*)          fmt=aout em=386bsd ;;
 157       i386-*-netbsd0.8)     fmt=aout em=386bsd ;;
 158       i386-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes;;
 159       i386-*-openbsd*)      fmt=aout em=nbsd bfd_gas=yes;;
 160       i386-*-linux*aout* | i386-*-linuxoldld)   fmt=aout em=linux ;;
 161       i386-*-linux*coff*)   fmt=coff em=linux ;;
 162       i386-*-linux*)        fmt=elf em=linux ;;
 163       i386-*-lynxos*)       fmt=coff em=lynx ;;
 164       i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
 165                             fmt=elf ;;
 166       i386-*-freebsdelf*)   fmt=elf ;;
 167       i386-*-freebsd*)      fmt=aout em=386bsd ;;
 168       i386-*-sco*elf*)      fmt=elf
 169                             if test ${this_target} = $target; then
 170                                 AC_DEFINE(SCO_ELF)
 171                             fi
 172                             ;;
 173       i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
 174                             fmt=coff ;;
 175       i386-*-vsta)          fmt=aout ;;
 176       i386-*-msdosdjgpp* | i386-*-go32* | i386-go32-rtems*)
 177                             fmt=coff em=go32;;
 178       i386-*-rtems*)        fmt=coff ;;
 179       i386-*-gnu*)          fmt=elf ;;
 180       i386-*-mach*)
 181                             fmt=aout em=mach bfd_gas=yes ;;
 182       i386-*-msdos*)        fmt=aout ;;
 183       i386-*-moss*)         fmt=elf ;;
 184       i386-*-pe)            fmt=coff em=pe ;;
 185       i386-*-cygwin32)      fmt=coff em=pe bfd_gas=yes ;;
 186       i386-*-*nt)           fmt=coff em=pe ;;
 187       i960-*-bout)          fmt=bout ;;
 188       i960-*-coff)          fmt=coff em=ic960 ;;
 189       i960-*-rtems*)        fmt=coff em=ic960 ;;
 190       i960-*-nindy*)        fmt=bout ;;
 191       i960-*-vxworks4*)     fmt=bout ;;
 192       i960-*-vxworks5.0)    fmt=bout ;;
 193       i960-*-vxworks5.*)    fmt=coff em=ic960 ;;
 194       i960-*-vxworks*)      fmt=bout ;;
 195
 196       m32r-*-*)             fmt=elf bfd_gas=yes ;;
 197
 198       m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
 199                             fmt=aout em=sun3 ;;
 200       m68k-motorola-sysv*)  fmt=coff em=delta ;;
 201       m68k-bull-sysv3*)     fmt=coff em=dpx2 ;;
 202       m68k-apollo-*)        fmt=coff em=apollo ;;
 203       m68k-*-sysv4*) # must be before -sysv*
 204                             fmt=elf em=svr4 ;;
 205       m68k-*-elf*)          fmt=elf ;;
 206       m68k-*-coff | m68k-*-sysv* | m68k-*-rtems*)
 207                             fmt=coff ;;
 208       m68k-*-hpux*)         fmt=hp300 em=hp300 ;;
 209       m68k-*-linux*aout*)   fmt=aout em=linux ;;
 210       m68k-*-linux*)        fmt=elf em=linux ;;
 211       m68k-*-lynxos*)       fmt=coff em=lynx ;;
 212       m68k-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes ;;
 213       m68k-*-openbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 214       m68k-apple-aux*)      fmt=coff em=aux ;;
 215       m68k-*-psos*)         fmt=elf em=psos;;
 216
 217       m88k-motorola-sysv3*) fmt=coff em=delt88 ;;
 218       m88k-*-coff*)         fmt=coff ;;
 219
 220       # don't change em like *-*-bsd does
 221       mips-dec-netbsd*)     fmt=elf endian=little ;;
 222       mips-dec-openbsd*)    fmt=elf endian=little ;;
 223       mips-dec-bsd*)        fmt=aout ;;
 224       mips-sony-bsd*)       fmt=ecoff ;;
 225       mips-*-bsd*)          AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
 226       mips-*-ultrix*)       fmt=ecoff endian=little ;;
 227       mips-*-osf*)          fmt=ecoff endian=little ;;
 228       mips-*-ecoff*)        fmt=ecoff ;;
 229       mips-*-ecoff*)        fmt=ecoff ;;
 230       mips-*-irix6*)        fmt=elf ;;
 231       mips-*-irix5*)        fmt=elf ;;
 232       mips-*-irix*)         fmt=ecoff ;;
 233       mips-*-lnews*)        fmt=ecoff em=lnews ;;
 234       mips-*-riscos*)       fmt=ecoff ;;
 235       mips-*-sysv*)         fmt=ecoff ;;
 236       mips-*-elf* | mips-*-rtems* | mips-*-linux* | mips-*-gnu* | mips-*-openbsd*)
 237                             fmt=elf ;;
 238       mn10200-*-*)          fmt=elf bfd_gas=yes ;;
 239       mn10300-*-*)          fmt=elf bfd_gas=yes ;;
 240       ppc-*-pe | ppc-*-cygwin32 | ppc-*-winnt*)
 241                             fmt=coff em=pe ;;
 242       ppc-*-aix*)           fmt=coff ;;
 243       ppc-*-beos*)          fmt=coff ;;
 244       ppc-*-*bsd* | ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
 245                             fmt=elf ;;
 246       ppc-*-linux*)         fmt=elf
 247                             case "$endian" in
 248                             big)  ;;
 249                             *)    AC_MSG_ERROR(Linux must be configured big endian) ;;
 250                             esac
 251                             ;;
 252       ppc-*-solaris*)       fmt=elf
 253                             if test ${this_target} = $target; then
 254                                 AC_DEFINE(TARGET_SOLARIS_COMMENT)
 255                             fi
 256                             if test x${endian} = xbig; then
 257                                 AC_MSG_ERROR(Solaris must be configured little endian)
 258                             fi
 259                             ;;
 260       ppc-*-rtems*)         fmt=elf ;;
 261       ppc-*-macos* | ppc-*-mpw*)
 262                             fmt=coff em=macos ;;
 263       ppc-*-netware*)       fmt=elf em=ppcnw ;;
 264
 265       sh-*-elf*)            fmt=elf ;;
 266       sh-*-coff*)           fmt=coff ;;
 267       sh-*-rtems*)          fmt=elf ;;
 268
 269       ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
 270       ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;
 271       ns32k-pc532-openbsd*) fmt=aout em=nbsd532 ;;
 272
 273       sparc-*-rtems*)       fmt=aout ;;
 274       sparc-*-sunos4*)      fmt=aout em=sun3 ;;
 275       sparc-*-aout | sparc*-*-vxworks*)
 276                             fmt=aout em=sparcaout ;;
 277       sparc-*-coff)         fmt=coff ;;
 278       sparc-*-linux*aout*)  fmt=aout em=linux ;;
 279       sparc-*-linux*)       fmt=elf em=linux ;;
 280       sparc-*-lynxos*)      fmt=coff em=lynx ;;
 281       sparc-fujitsu-none)   fmt=aout ;;
 282       sparc-*-elf | sparc-*-sysv4* | sparc-*-solaris*)
 283                             fmt=elf ;;
 284       sparc-*-netbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 285       sparc-*-openbsd*)     fmt=aout em=nbsd bfd_gas=yes ;;
 286
 287 # start-sanitize-tic80
 288       tic80-*-*)            fmt=coff ;;
 289 # end-sanitize-tic80
 290
 291 # start-sanitize-sky
 292       txvu-*-*)             fmt=elf bfd_gas=yes ;;
 293 # end-sanitize-sky
 294
 295       v850-*-*)             fmt=elf bfd_gas=yes ;;
 296
 297 # start-sanitize-v850e
 298       v850e-*-*)            fmt=elf bfd_gas=yes ;;
 299       v850ea-*-*)           fmt=elf bfd_gas=yes ;;
 300 # end-sanitize-v850e
 301       vax-*-bsd* | vax-*-ultrix*)
 302                             fmt=aout ;;
 303       vax-*-vms)            fmt=vms ;;
 304
 305       z8k-*-coff | z8k-*-sim)
 306                             fmt=coff ;;
 307
 308       w65-*-*)              fmt=coff ;;
 309
 310       *-*-aout | *-*-scout)
 311                             fmt=aout ;;
 312       *-*-nindy*)
 313                             fmt=bout ;;
 314       *-*-bsd*)
 315                             fmt=aout em=sun3 ;;
 316       *-*-generic)          fmt=generic ;;
 317       *-*-xray | *-*-hms)   fmt=coff ;;
 318       *-*-sim)              fmt=coff ;;
 319       *-*-elf | *-*-sysv4* | *-*-solaris*)
 320                             AC_MSG_WARN(GAS support for ${generic_target} is incomplete.)
 321                             fmt=elf dev=yes ;;
 322       *-*-vxworks)          fmt=aout ;;
 323       *-*-netware)          fmt=elf ;;
 324     esac
 325
 326     case ${cpu_type}-${fmt} in
 327       alpha*-*) bfd_gas=yes ;;
 328       arm-*)    bfd_gas=yes ;;
 329     # not yet
 330     # i386-aout)        bfd_gas=preferred ;;
 331       mips-*)   bfd_gas=yes ;;
 332       ns32k-*)  bfd_gas=yes ;;
 333       ppc-*)    bfd_gas=yes ;;
 334       sparc-*)  bfd_gas=yes ;;
 335       *-elf)    bfd_gas=yes ;;
 336       *-ecoff)  bfd_gas=yes ;;
 337       *-som)    bfd_gas=yes ;;
 338       *)                ;;
 339     esac
 340
 341 # Other random stuff.
 342
 343     # do we need the opcodes library?
 344     case ${cpu_type} in
 345       vax | i386)
 346         ;;
 347       *)
 348         need_opcodes=yes
 349         if test "${shared_opcodes}" = "true"; then
 350           # A shared libopcodes must be linked against libbfd.
 351           need_bfd=yes
 352         fi
 353         ;;
 354     esac
 355
 356     case ${cpu_type} in
 357       m32r)
 358         case ${extra_objects} in
 359         *cgen.o*) ;;
 360         *) extra_objects="$extra_objects cgen.o"
 361            AC_DEFINE(USING_CGEN)
 362            ;;
 363         esac
 364         ;;
 365
 366       m68k)
 367         case ${extra_objects} in
 368         *m68k-parse.o*) ;;
 369         *) extra_objects="$extra_objects m68k-parse.o" ;;
 370         esac
 371         ;;
 372
 373       mips)
 374         echo ${extra_objects} | grep -s "itbl-parse.o"
 375         if test $? -ne 0 ; then
 376           extra_objects="$extra_objects itbl-parse.o"
 377         fi
 378
 379         echo ${extra_objects} | grep -s "itbl-lex.o"
 380         if test $? -ne 0 ; then
 381           extra_objects="$extra_objects itbl-lex.o"
 382         fi
 383
 384         echo ${extra_objects} | grep -s "itbl-ops.o"
 385         if test $? -ne 0 ; then
 386           extra_objects="$extra_objects itbl-ops.o"
 387         fi
 388         ;;
 389
 390       sparc)
 391         if test $this_target = $target ; then
 392           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}")
 393         fi
 394         ;;
 395
 396       *)
 397         ;;
 398     esac
 399
 400 # See if we really can support this configuration with the emulation code.
 401
 402     if test $this_target = $target ; then
 403       primary_bfd_gas=$bfd_gas
 404       obj_format=$fmt
 405       te_file=$em
 406
 407       if test $bfd_gas = no ; then
 408         # Can't support other configurations this way.
 409         break
 410       fi
 411     elif test $bfd_gas = no ; then
 412       # Can't support this configuration.
 413       break
 414     fi
 415
 416 # From target name and format, produce a list of supported emulations.
 417
 418     case ${generic_target}-${fmt} in
 419       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 420       mips-*-linux*-*)  case "$endian" in
 421                         big)    emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 422                         *)      emulation="mipslelf mipsbelf mipself mipslecoff mipsbecoff mipsecoff" ;;
 423                         esac ;;
 424       mips-*-lnews*-ecoff) ;;
 425       mips-*-*-ecoff)   case "$endian" in
 426                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 427                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 428                         esac ;;
 429       mips-*-*-elf)     case "$endian" in
 430                         big)    emulation="mipsbelf mipslelf mipself" ;;
 431                         *)      emulation="mipslelf mipsbelf mipself" ;;
 432       # Uncommenting the next line will turn on support for i386 COFF
 433       # in any i386 ELF configuration.  This probably doesn't work
 434       # correctly.
 435       # i386-*-*-elf)   emulation="i386coff i386elf" ;;
 436                         esac ;;
 437     esac
 438
 439     emulations="$emulations $emulation"
 440
 441 done
 442
 443 # Assign floating point type.  Most processors with FP support
 444 # IEEE FP.  On those that don't support FP at all, usually IEEE
 445 # is emulated.
 446 case ${target_cpu} in
 447   vax | tahoe ) atof=${target_cpu} ;;
 448   *)            atof=ieee ;;
 449 esac
 450
 451 case "${obj_format}" in
 452   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 453 esac
 454
 455 dnl
 456 dnl Make sure the desired support files exist.
 457 dnl
 458
 459 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 460   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 461 fi
 462
 463 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 464   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 465 fi
 466
 467 case ${user_bfd_gas}-${primary_bfd_gas} in
 468   yes-yes | no-no)
 469     # We didn't override user's choice.
 470     ;;
 471   no-yes)
 472     AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
 473     ;;
 474   no-preferred)
 475     primary_bfd_gas=no
 476     ;;
 477   *-preferred)
 478     primary_bfd_gas=yes
 479     ;;
 480   yes-*)
 481     primary_bfd_gas=yes
 482     ;;
 483   -*)
 484     # User specified nothing.
 485     ;;
 486 esac
 487
 488 # Some COFF configurations want these random other flags set.
 489 case ${obj_format} in
 490   coff)
 491     case ${target_cpu_type} in
 492       i386) AC_DEFINE(I386COFF) ;;
 493       m68k) AC_DEFINE(M68KCOFF) ;;
 494       m88k) AC_DEFINE(M88KCOFF) ;;
 495     esac
 496     ;;
 497 esac
 498
 499 # Getting this done right is going to be a bitch.  Each configuration specified
 500 # with --enable-targets=... should be checked for environment, format, cpu, and
 501 # bfd_gas setting.
 502 #
 503 # For each configuration, the necessary object file support code must be linked
 504 # in.  This might be only one, it might be up to four.  The necessary emulation
 505 # code needs to be provided, too.
 506 #
 507 # And then there's "--enable-targets=all"....
 508 #
 509 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 510
 511 formats="${obj_format}"
 512 emfiles=""
 513 EMULATIONS=""
 514 GAS_UNIQ(emulations)
 515 for em in . $emulations ; do
 516   case $em in
 517     .)  continue ;;
 518     mipsbelf | mipslelf)
 519         fmt=elf   file=mipself ;;
 520     mipsbecoff | mipslecoff)
 521         fmt=ecoff file=mipsecoff ;;
 522     i386coff)
 523         fmt=coff  file=i386coff ;;
 524     i386elf)
 525         fmt=elf   file=i386elf ;;
 526   esac
 527   formats="$formats $fmt"
 528   emfiles="$emfiles e-$file.o"
 529   EMULATIONS="$EMULATIONS &$em,"
 530 done
 531 GAS_UNIQ(formats)
 532 GAS_UNIQ(emfiles)
 533 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 534   for fmt in $formats ; do
 535     case $fmt in
 536       aout)     AC_DEFINE(OBJ_MAYBE_AOUT)    ;;
 537       bout)     AC_DEFINE(OBJ_MAYBE_BOUT)    ;;
 538       coff)     AC_DEFINE(OBJ_MAYBE_COFF)    ;;
 539       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF)   ;;
 540       elf)      AC_DEFINE(OBJ_MAYBE_ELF)     ;;
 541       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
 542       hp300)    AC_DEFINE(OBJ_MAYBE_HP300)   ;;
 543       ieee)     AC_DEFINE(OBJ_MAYBE_IEEE)    ;;
 544       som)      AC_DEFINE(OBJ_MAYBE_SOM)     ;;
 545       vms)      AC_DEFINE(OBJ_MAYBE_VMS)     ;;
 546     esac
 547     extra_objects="$extra_objects obj-$fmt.o"
 548   done
 549   obj_format=multi
 550 fi
 551 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 552   te_file=multi
 553   extra_objects="$extra_objects $emfiles"
 554   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 555   AC_DEFINE(USE_EMULATIONS)
 556 fi
 557 AC_SUBST(extra_objects)
 558 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
 559 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
 560
 561 case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
 562   yes-*-coff)   need_bfd=yes ;;
 563   no-*-coff)    need_bfd=yes
 564                 AC_DEFINE(MANY_SEGMENTS) ;;
 565 esac
 566
 567 reject_dev_configs=yes
 568
 569 case ${reject_dev_configs}-${dev} in
 570   yes-yes) # Oops.
 571     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 572     ;;
 573 esac
 574
 575 AC_SUBST(target_cpu_type)
 576 AC_SUBST(obj_format)
 577 AC_SUBST(te_file)
 578 AC_SUBST(atof)
 579 dnl AC_SUBST(emulation)
 580
 581 case "${primary_bfd_gas}" in
 582   yes)  AC_DEFINE(BFD_ASSEMBLER)
 583         need_bfd=yes ;;
 584 esac
 585
 586 # do we need the opcodes library?
 587 case "${need_opcodes}" in
 588 yes)
 589   OPCODES_LIB=../opcodes/libopcodes.la
 590   ;;
 591 esac
 592
 593 case "${need_bfd}" in
 594 yes)
 595   BFDLIB=../bfd/libbfd.la
 596   ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
 597   ;;
 598 esac
 599
 600 AC_SUBST(BFDLIB)
 601 AC_SUBST(OPCODES_LIB)
 602
 603 AC_SUBST(ALL_OBJ_DEPS)
 604
 605 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}")
 606 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}")
 607 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}")
 608 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}")
 609 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}")
 610
 611 AC_PROG_CC
 612
 613 AC_PROG_YACC
 614 AC_PROG_LEX
 615 AC_DECL_YYTEXT
 616
 617 AM_MAINTAINER_MODE
 618 AM_CYGWIN32
 619 AM_EXEEXT
 620
 621 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
 622
 623 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 624 # people who are not cross-compiling but are compiling cross-assemblers.
 625 AC_MSG_CHECKING(whether compiling a cross-assembler)
 626 if test "${host}" = "${target}"; then
 627   cross_gas=no
 628 else
 629   cross_gas=yes
 630   AC_DEFINE(CROSS_COMPILE)
 631 fi
 632 AC_MSG_RESULT($cross_gas)
 633
 634 dnl ansidecl.h will deal with const
 635 dnl AC_CONST
 636 AC_FUNC_ALLOCA
 637 AC_C_INLINE
 638
 639 # VMS doesn't have unlink.
 640 AC_CHECK_FUNCS(unlink remove, break)
 641
 642 # Some systems don't have sbrk().
 643 AC_CHECK_FUNCS(sbrk)
 644
 645 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 646 # enough, but on some of those systems, the assert macro relies on requoting
 647 # working properly!
 648 GAS_WORKING_ASSERT
 649
 650 # On some systems, the system header files may not declare malloc, realloc,
 651 # and free.  There are places where gas needs these functions to have been
 652 # declared -- such as when taking their addresses.
 653 gas_test_headers="
 654 #ifdef HAVE_MEMORY_H
 655 #include <memory.h>
 656 #endif
 657 #ifdef HAVE_STRING_H
 658 #include <string.h>
 659 #else
 660 #ifdef HAVE_STRINGS_H
 661 #include <strings.h>
 662 #endif
 663 #endif
 664 #ifdef HAVE_STDLIB_H
 665 #include <stdlib.h>
 666 #endif
 667 #ifdef HAVE_UNISTD_H
 668 #include <unistd.h>
 669 #endif
 670 "
 671 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 672 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 673 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 674 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 675
 676 # Does errno.h declare errno, or do we have to add a separate declaration
 677 # for it?
 678 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 679 #ifdef HAVE_ERRNO_H
 680 #include <errno.h>
 681 #endif
 682 ])
 683
 684 dnl This must come last.
 685
 686 dnl We used to make symlinks to files in the source directory, but now
 687 dnl we just use the right name for .c files, and create .h files in
 688 dnl the build directory which include the right .h file.  Make sure
 689 dnl the old symlinks don't exist, so that a reconfigure in an existing
 690 dnl directory behaves reasonably.
 691
 692 AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in,
 693 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 694  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 695  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 696  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 697  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 698  case ${target_cpu_type} in
 699  m32r) echo '#include "opcodes/'"${target_cpu_type}"'-opc.h"' > cgen-opc.h ;;
 700  esac],
 701 [target_cpu_type=${target_cpu_type}
 702  obj_format=${obj_format}
 703  te_file=${te_file}])