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, 2.9.1)
  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 ${cpu} in
  72       alpha*)           cpu_type=alpha ;;
  73       armeb)            cpu_type=arm endian=big ;;
  74       arm*)             cpu_type=arm endian=little ;;
  75       thumb*)           cpu_type=arm endian=little ;;
  76       hppa*)            cpu_type=hppa ;;
  77 changequote(,)dnl
  78       i[456]86)         cpu_type=i386 ;;
  79       m680[012346]0)    cpu_type=m68k ;;
  80       m68008)           cpu_type=m68k ;;
  81       m683??)           cpu_type=m68k ;;
  82 changequote([,])dnl
  83       m8*)              cpu_type=m88k ;;
  84       mips*el)          cpu_type=mips endian=little ;;
  85 # start-sanitize-r5900
  86       mips*5900*)       cpu_type=mips endian=little ;;
  87 # end-sanitize-r5900
  88       mips*)            cpu_type=mips endian=big ;;
  89       powerpcle*)       cpu_type=ppc endian=little ;;
  90       powerpc*)         cpu_type=ppc endian=big ;;
  91       rs6000*)          cpu_type=ppc ;;
  92       sparclite*)       cpu_type=sparc arch=sparclite ;;
  93       sparclet*)        cpu_type=sparc arch=sparclet ;;
  94       sparc64*)         cpu_type=sparc arch=v9-64 ;;
  95       sparc86x*)        cpu_type=sparc arch=sparc86x  ;;
  96       sparc*)           cpu_type=sparc arch=sparclite ;; # ??? See tc-sparc.c.
  97       v850*)            cpu_type=v850 ;;
  98       *)                cpu_type=${cpu} ;;
  99     esac
 100
 101     if test ${this_target} = $target ; then
 102       target_cpu_type=${cpu_type}
 103       if test x${endian} = xbig; then
 104         AC_DEFINE(TARGET_BYTES_BIG_ENDIAN, 1)
 105       elif test x${endian} = xlittle; then
 106         AC_DEFINE(TARGET_BYTES_BIG_ENDIAN, 0)
 107       fi
 108     elif test ${target_cpu_type} != ${cpu_type} ; then
 109       continue
 110     fi
 111
 112     generic_target=${cpu_type}-$vendor-$os
 113     dev=no
 114     bfd_gas=no
 115     em=generic
 116
 117     # assign object format
 118     case ${generic_target} in
 119       a29k-*-coff)          fmt=coff ;;
 120       a29k-amd-udi)         fmt=coff ;;
 121       a29k-amd-ebmon)       fmt=coff ;;
 122       a29k-nyu-sym1)        fmt=coff ;;
 123       a29k-*-vxworks*)      fmt=coff ;;
 124
 125       alpha*-*-*vms*)       fmt=evax ;;
 126       alpha*-*-netware*)    fmt=ecoff ;;
 127       alpha*-*-openbsd*)    fmt=ecoff ;;
 128       alpha*-*-osf*)        fmt=ecoff ;;
 129       alpha*-*-linuxecoff*) fmt=ecoff ;;
 130       alpha*-*-linux-gnu*)  fmt=elf em=linux ;;
 131       alpha*-*-netbsd*)     fmt=elf em=nbsd ;;
 132
 133       arc-*-elf*)           fmt=elf bfd_gas=yes ;;
 134
 135       arm-*-riscix*)        fmt=aout em=riscix ;;
 136       arm-*-aout)           fmt=aout ;;
 137       arm-*-coff | thumb-*-coff)           fmt=coff ;;
 138       arm-*-riscix*)        fmt=aout ;;
 139       arm-*-pe | thumb-*-pe)               fmt=coff em=pe ;;
 140
 141       d10v-*-*)             fmt=elf bfd_gas=yes ;;
 142 # start-sanitize-d30v
 143       d30v-*-*)             fmt=elf bfd_gas=yes ;;
 144 # end-sanitize-d30v
 145
 146       hppa-*-*elf*)         fmt=elf em=hppa ;;
 147       hppa-*-lites*)        fmt=elf em=hppa ;;
 148       hppa-*-osf*)          fmt=som em=hppa ;;
 149       hppa-*-rtems*)        fmt=elf em=hppa ;;
 150       hppa-*-hpux*)         fmt=som em=hppa ;;
 151       hppa-*-bsd*)          fmt=som em=hppa ;;
 152       hppa-*-hiux*)         fmt=som em=hppa ;;
 153
 154       h8300-*-coff)         fmt=coff ;;
 155
 156       i386-ibm-aix*)        fmt=coff em=i386aix ;;
 157       i386-sequent-bsd*)    fmt=aout em=dynix bfd_gas=yes ;;
 158       i386-*-bsd*)          fmt=aout em=386bsd ;;
 159       i386-*-netbsd0.8)     fmt=aout em=386bsd ;;
 160       i386-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes;;
 161       i386-*-openbsd*)      fmt=aout em=nbsd bfd_gas=yes;;
 162       i386-*-linux*aout* | i386-*-linuxoldld)   fmt=aout em=linux ;;
 163       i386-*-linux*coff*)   fmt=coff em=linux ;;
 164       i386-*-linux-gnu*)    fmt=elf em=linux ;;
 165       i386-*-lynxos*)       fmt=coff em=lynx ;;
 166       i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
 167                             fmt=elf ;;
 168       i386-*-freebsdelf*)   fmt=elf ;;
 169       i386-*-freebsd*)      fmt=aout em=386bsd ;;
 170       i386-*-coff | i386-*-sysv* | i386-*-sco3.2v5*coff | i386-*-isc*)
 171                           fmt=coff ;;
 172       i386-*-sco3.2v5*)      fmt=elf
 173                             if test ${this_target} = $target; then
 174                                 AC_DEFINE(SCO_ELF)
 175                             fi
 176                             ;;
 177       i386-*-sco3.2*)       fmt=coff ;;
 178       i386-*-vsta)          fmt=aout ;;
 179       i386-*-msdosdjgpp* | i386-*-go32* | i386-go32-rtems*)
 180                             fmt=coff em=go32;;
 181       i386-*-rtems*)        fmt=coff ;;
 182       i386-*-gnu*)          fmt=elf ;;
 183       i386-*-mach*)
 184                             fmt=aout em=mach bfd_gas=yes ;;
 185       i386-*-msdos*)        fmt=aout ;;
 186       i386-*-moss*)         fmt=elf ;;
 187       i386-*-pe)            fmt=coff em=pe ;;
 188       i386-*-cygwin32*)     fmt=coff em=pe bfd_gas=yes ;;
 189       i386-*-mingw32*)      fmt=coff em=pe bfd_gas=yes ;;
 190       i386-*-*nt*)          fmt=coff em=pe ;;
 191       i960-*-bout)          fmt=bout ;;
 192       i960-*-coff)          fmt=coff em=ic960 ;;
 193       i960-*-rtems*)        fmt=coff em=ic960 ;;
 194       i960-*-nindy*)        fmt=bout ;;
 195       i960-*-vxworks4*)     fmt=bout ;;
 196       i960-*-vxworks5.0)    fmt=bout ;;
 197       i960-*-vxworks5.*)    fmt=coff em=ic960 ;;
 198       i960-*-vxworks*)      fmt=bout ;;
 199
 200       m32r-*-*)             fmt=elf bfd_gas=yes ;;
 201
 202       m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
 203                             fmt=aout em=sun3 ;;
 204       m68k-motorola-sysv*)  fmt=coff em=delta ;;
 205       m68k-bull-sysv3*)     fmt=coff em=dpx2 ;;
 206       m68k-apollo-*)        fmt=coff em=apollo ;;
 207       m68k-*-sysv4*) # must be before -sysv*
 208                             fmt=elf em=svr4 ;;
 209       m68k-*-elf*)          fmt=elf ;;
 210       m68k-*-coff | m68k-*-sysv* | m68k-*-rtems*)
 211                             fmt=coff ;;
 212       m68k-*-hpux*)         fmt=hp300 em=hp300 ;;
 213       m68k-*-linux*aout*)   fmt=aout em=linux ;;
 214       m68k-*-linux-gnu*)    fmt=elf em=linux ;;
 215       m68k-*-lynxos*)       fmt=coff em=lynx ;;
 216       m68k-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes ;;
 217       m68k-*-openbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 218       m68k-apple-aux*)      fmt=coff em=aux ;;
 219       m68k-*-psos*)         fmt=elf em=psos;;
 220
 221       m88k-motorola-sysv3*) fmt=coff em=delt88 ;;
 222       m88k-*-coff*)         fmt=coff ;;
 223
 224       # don't change em like *-*-bsd does
 225       mips-dec-netbsd*)     fmt=elf endian=little ;;
 226       mips-dec-openbsd*)    fmt=elf endian=little ;;
 227       mips-dec-bsd*)        fmt=aout ;;
 228       mips-sony-bsd*)       fmt=ecoff ;;
 229       mips-*-bsd*)          AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
 230       mips-*-ultrix*)       fmt=ecoff endian=little ;;
 231       mips-*-osf*)          fmt=ecoff endian=little ;;
 232       mips-*-ecoff*)        fmt=ecoff ;;
 233       mips-*-ecoff*)        fmt=ecoff ;;
 234       mips-*-irix6*)        fmt=elf ;;
 235       mips-*-irix5*)        fmt=elf ;;
 236       mips-*-irix*)         fmt=ecoff ;;
 237       mips-*-lnews*)        fmt=ecoff em=lnews ;;
 238       mips-*-riscos*)       fmt=ecoff ;;
 239       mips-*-sysv*)         fmt=ecoff ;;
 240       mips-*-elf* | mips-*-rtems* | mips-*-linux-gnu* | mips-*-gnu* | mips-*-openbsd*)
 241                             fmt=elf ;;
 242       mn10200-*-*)          fmt=elf bfd_gas=yes ;;
 243       mn10300-*-*)          fmt=elf bfd_gas=yes ;;
 244       ppc-*-pe | ppc-*-cygwin32 | ppc-*-winnt*)
 245                             fmt=coff em=pe ;;
 246       ppc-*-aix*)           fmt=coff ;;
 247       ppc-*-beos*)          fmt=coff ;;
 248       ppc-*-*bsd* | ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
 249                             fmt=elf ;;
 250       ppc-*-linux-gnu*)     fmt=elf
 251                             case "$endian" in
 252                             big)  ;;
 253                             *)    AC_MSG_ERROR(GNU/Linux must be configured big endian) ;;
 254                             esac
 255                             ;;
 256       ppc-*-solaris*)       fmt=elf
 257                             if test ${this_target} = $target; then
 258                                 AC_DEFINE(TARGET_SOLARIS_COMMENT)
 259                             fi
 260                             if test x${endian} = xbig; then
 261                                 AC_MSG_ERROR(Solaris must be configured little endian)
 262                             fi
 263                             ;;
 264       ppc-*-rtems*)         fmt=elf ;;
 265       ppc-*-macos* | ppc-*-mpw*)
 266                             fmt=coff em=macos ;;
 267       ppc-*-netware*)       fmt=elf em=ppcnw ;;
 268
 269       sh-*-elf*)            fmt=elf ;;
 270       sh-*-coff*)           fmt=coff ;;
 271       sh-*-rtems*)          fmt=coff ;;
 272
 273       ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
 274       ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;
 275       ns32k-pc532-openbsd*) fmt=aout em=nbsd532 ;;
 276
 277       sparc-*-rtems*)       fmt=aout ;;
 278       sparc-*-sunos4*)      fmt=aout em=sun3 ;;
 279       sparc-*-aout | sparc*-*-vxworks*)
 280                             fmt=aout em=sparcaout ;;
 281       sparc-*-coff)         fmt=coff ;;
 282       sparc-*-linux*aout*)  fmt=aout em=linux ;;
 283       sparc-*-linux-gnu*)   fmt=elf em=linux ;;
 284       sparc-*-lynxos*)      fmt=coff em=lynx ;;
 285       sparc-fujitsu-none)   fmt=aout ;;
 286       sparc-*-elf | sparc-*-sysv4* | sparc-*-solaris*)
 287                             fmt=elf ;;
 288       sparc-*-netbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 289       sparc-*-openbsd*)     fmt=aout em=nbsd bfd_gas=yes ;;
 290
 291       tic30-*-*aout*)       fmt=aout bfd_gas=yes ;;
 292       tic30-*-*coff*)       fmt=coff bfd_gas=yes ;;
 293 # start-sanitize-tic80
 294       tic80-*-*)            fmt=coff ;;
 295 # end-sanitize-tic80
 296
 297 # start-sanitize-sky
 298       dvp-*-*)              fmt=elf bfd_gas=yes ;;
 299 # end-sanitize-sky
 300
 301       v850-*-*)             fmt=elf bfd_gas=yes ;;
 302
 303 # start-sanitize-v850e
 304       v850e-*-*)            fmt=elf bfd_gas=yes ;;
 305       v850ea-*-*)           fmt=elf bfd_gas=yes ;;
 306 # end-sanitize-v850e
 307       vax-*-bsd* | vax-*-ultrix*)
 308                             fmt=aout ;;
 309       vax-*-vms)            fmt=vms ;;
 310
 311       z8k-*-coff | z8k-*-sim)
 312                             fmt=coff ;;
 313
 314       w65-*-*)              fmt=coff ;;
 315
 316       *-*-aout | *-*-scout)
 317                             fmt=aout ;;
 318       *-*-nindy*)
 319                             fmt=bout ;;
 320       *-*-bsd*)
 321                             fmt=aout em=sun3 ;;
 322       *-*-generic)          fmt=generic ;;
 323       *-*-xray | *-*-hms)   fmt=coff ;;
 324       *-*-sim)              fmt=coff ;;
 325       *-*-elf | *-*-sysv4* | *-*-solaris*)
 326                             AC_MSG_WARN(GAS support for ${generic_target} is incomplete.)
 327                             fmt=elf dev=yes ;;
 328       *-*-vxworks)          fmt=aout ;;
 329       *-*-netware)          fmt=elf ;;
 330     esac
 331
 332     case ${cpu_type}-${fmt} in
 333       alpha*-*) bfd_gas=yes ;;
 334       arm-*)    bfd_gas=yes ;;
 335     # not yet
 336     # i386-aout)        bfd_gas=preferred ;;
 337       mips-*)   bfd_gas=yes ;;
 338       ns32k-*)  bfd_gas=yes ;;
 339       ppc-*)    bfd_gas=yes ;;
 340       sparc-*)  bfd_gas=yes ;;
 341       *-elf)    bfd_gas=yes ;;
 342       *-ecoff)  bfd_gas=yes ;;
 343       *-som)    bfd_gas=yes ;;
 344       *)                ;;
 345     esac
 346
 347 # Other random stuff.
 348
 349     # do we need the opcodes library?
 350     case ${cpu_type} in
 351       vax | i386 | tic30)
 352         ;;
 353       *)
 354         need_opcodes=yes
 355
 356         case "${enable_shared}" in
 357         yes) shared_opcodes=true ;;
 358         *opcodes*) shared_opcodes=true ;;
 359         *) shared_opcodes=false ;;
 360         esac
 361         if test "${shared_opcodes}" = "true"; then
 362           # A shared libopcodes must be linked against libbfd.
 363           need_bfd=yes
 364         fi
 365         ;;
 366     esac
 367
 368     case ${cpu_type} in
 369       m32r)
 370         case ${extra_objects} in
 371         *cgen.o*) ;;
 372         *) extra_objects="$extra_objects cgen.o"
 373            AC_DEFINE(USING_CGEN)
 374            ;;
 375         esac
 376         ;;
 377
 378       m68k)
 379         case ${extra_objects} in
 380         *m68k-parse.o*) ;;
 381         *) extra_objects="$extra_objects m68k-parse.o" ;;
 382         esac
 383         ;;
 384
 385       mips)
 386         echo ${extra_objects} | grep -s "itbl-parse.o"
 387         if test $? -ne 0 ; then
 388           extra_objects="$extra_objects itbl-parse.o"
 389         fi
 390
 391         echo ${extra_objects} | grep -s "itbl-lex.o"
 392         if test $? -ne 0 ; then
 393           extra_objects="$extra_objects itbl-lex.o"
 394         fi
 395
 396         echo ${extra_objects} | grep -s "itbl-ops.o"
 397         if test $? -ne 0 ; then
 398           extra_objects="$extra_objects itbl-ops.o"
 399         fi
 400         ;;
 401
 402       sparc)
 403         if test $this_target = $target ; then
 404           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}")
 405         fi
 406         ;;
 407
 408       *)
 409         ;;
 410     esac
 411
 412 # See if we really can support this configuration with the emulation code.
 413
 414     if test $this_target = $target ; then
 415       primary_bfd_gas=$bfd_gas
 416       obj_format=$fmt
 417       te_file=$em
 418
 419       if test $bfd_gas = no ; then
 420         # Can't support other configurations this way.
 421         break
 422       fi
 423     elif test $bfd_gas = no ; then
 424       # Can't support this configuration.
 425       break
 426     fi
 427
 428 # From target name and format, produce a list of supported emulations.
 429
 430     case ${generic_target}-${fmt} in
 431       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 432       mips-*-linux-gnu*-*) case "$endian" in
 433                         big)    emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 434                         *)      emulation="mipslelf mipsbelf mipself mipslecoff mipsbecoff mipsecoff" ;;
 435                         esac ;;
 436       mips-*-lnews*-ecoff) ;;
 437       mips-*-*-ecoff)   case "$endian" in
 438                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 439                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 440                         esac ;;
 441       mips-*-*-elf)     case "$endian" in
 442                         big)    emulation="mipsbelf mipslelf mipself" ;;
 443                         *)      emulation="mipslelf mipsbelf mipself" ;;
 444       # Uncommenting the next line will turn on support for i386 COFF
 445       # in any i386 ELF configuration.  This probably doesn't work
 446       # correctly.
 447       # i386-*-*-elf)   emulation="i386coff i386elf" ;;
 448                         esac ;;
 449     esac
 450
 451     emulations="$emulations $emulation"
 452
 453 done
 454
 455 # Assign floating point type.  Most processors with FP support
 456 # IEEE FP.  On those that don't support FP at all, usually IEEE
 457 # is emulated.
 458 case ${target_cpu} in
 459   vax | tahoe ) atof=${target_cpu} ;;
 460   *)            atof=ieee ;;
 461 esac
 462
 463 case "${obj_format}" in
 464   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 465 esac
 466
 467 dnl
 468 dnl Make sure the desired support files exist.
 469 dnl
 470
 471 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 472   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 473 fi
 474
 475 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 476   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 477 fi
 478
 479 case ${user_bfd_gas}-${primary_bfd_gas} in
 480   yes-yes | no-no)
 481     # We didn't override user's choice.
 482     ;;
 483   no-yes)
 484     AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
 485     ;;
 486   no-preferred)
 487     primary_bfd_gas=no
 488     ;;
 489   *-preferred)
 490     primary_bfd_gas=yes
 491     ;;
 492   yes-*)
 493     primary_bfd_gas=yes
 494     ;;
 495   -*)
 496     # User specified nothing.
 497     ;;
 498 esac
 499
 500 # Some COFF configurations want these random other flags set.
 501 case ${obj_format} in
 502   coff)
 503     case ${target_cpu_type} in
 504       i386) AC_DEFINE(I386COFF) ;;
 505       m68k) AC_DEFINE(M68KCOFF) ;;
 506       m88k) AC_DEFINE(M88KCOFF) ;;
 507     esac
 508     ;;
 509 esac
 510
 511 # Getting this done right is going to be a bitch.  Each configuration specified
 512 # with --enable-targets=... should be checked for environment, format, cpu, and
 513 # bfd_gas setting.
 514 #
 515 # For each configuration, the necessary object file support code must be linked
 516 # in.  This might be only one, it might be up to four.  The necessary emulation
 517 # code needs to be provided, too.
 518 #
 519 # And then there's "--enable-targets=all"....
 520 #
 521 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 522
 523 formats="${obj_format}"
 524 emfiles=""
 525 EMULATIONS=""
 526 GAS_UNIQ(emulations)
 527 for em in . $emulations ; do
 528   case $em in
 529     .)  continue ;;
 530     mipsbelf | mipslelf)
 531         fmt=elf   file=mipself ;;
 532     mipsbecoff | mipslecoff)
 533         fmt=ecoff file=mipsecoff ;;
 534     i386coff)
 535         fmt=coff  file=i386coff ;;
 536     i386elf)
 537         fmt=elf   file=i386elf ;;
 538   esac
 539   formats="$formats $fmt"
 540   emfiles="$emfiles e-$file.o"
 541   EMULATIONS="$EMULATIONS &$em,"
 542 done
 543 GAS_UNIQ(formats)
 544 GAS_UNIQ(emfiles)
 545 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 546   for fmt in $formats ; do
 547     case $fmt in
 548       aout)     AC_DEFINE(OBJ_MAYBE_AOUT)    ;;
 549       bout)     AC_DEFINE(OBJ_MAYBE_BOUT)    ;;
 550       coff)     AC_DEFINE(OBJ_MAYBE_COFF)    ;;
 551       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF)   ;;
 552       elf)      AC_DEFINE(OBJ_MAYBE_ELF)     ;;
 553       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
 554       hp300)    AC_DEFINE(OBJ_MAYBE_HP300)   ;;
 555       ieee)     AC_DEFINE(OBJ_MAYBE_IEEE)    ;;
 556       som)      AC_DEFINE(OBJ_MAYBE_SOM)     ;;
 557       vms)      AC_DEFINE(OBJ_MAYBE_VMS)     ;;
 558     esac
 559     extra_objects="$extra_objects obj-$fmt.o"
 560   done
 561   obj_format=multi
 562 fi
 563 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 564   te_file=multi
 565   extra_objects="$extra_objects $emfiles"
 566   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 567   AC_DEFINE(USE_EMULATIONS)
 568 fi
 569 AC_SUBST(extra_objects)
 570 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
 571 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
 572
 573 case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
 574   yes-*-coff)   need_bfd=yes ;;
 575   no-*-coff)    need_bfd=yes
 576                 AC_DEFINE(MANY_SEGMENTS) ;;
 577 esac
 578
 579 reject_dev_configs=yes
 580
 581 case ${reject_dev_configs}-${dev} in
 582   yes-yes) # Oops.
 583     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 584     ;;
 585 esac
 586
 587 AC_SUBST(target_cpu_type)
 588 AC_SUBST(obj_format)
 589 AC_SUBST(te_file)
 590 AC_SUBST(atof)
 591 dnl AC_SUBST(emulation)
 592
 593 case "${primary_bfd_gas}" in
 594   yes)  AC_DEFINE(BFD_ASSEMBLER)
 595         need_bfd=yes ;;
 596 esac
 597
 598 # do we need the opcodes library?
 599 case "${need_opcodes}" in
 600 yes)
 601   OPCODES_LIB=../opcodes/libopcodes.la
 602   ;;
 603 esac
 604
 605 case "${need_bfd}" in
 606 yes)
 607   BFDLIB=../bfd/libbfd.la
 608   ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
 609   ;;
 610 esac
 611
 612 AC_SUBST(BFDLIB)
 613 AC_SUBST(OPCODES_LIB)
 614
 615 AC_SUBST(ALL_OBJ_DEPS)
 616
 617 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}")
 618 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}")
 619 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}")
 620 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}")
 621 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}")
 622
 623 AC_PROG_CC
 624
 625 AC_PROG_YACC
 626 AM_PROG_LEX
 627
 628 AM_MAINTAINER_MODE
 629 AM_CYGWIN32
 630 AM_EXEEXT
 631
 632 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
 633
 634 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 635 # people who are not cross-compiling but are compiling cross-assemblers.
 636 AC_MSG_CHECKING(whether compiling a cross-assembler)
 637 if test "${host}" = "${target}"; then
 638   cross_gas=no
 639 else
 640   cross_gas=yes
 641   AC_DEFINE(CROSS_COMPILE)
 642 fi
 643 AC_MSG_RESULT($cross_gas)
 644
 645 dnl ansidecl.h will deal with const
 646 dnl AC_CONST
 647 AC_FUNC_ALLOCA
 648 AC_C_INLINE
 649
 650 # VMS doesn't have unlink.
 651 AC_CHECK_FUNCS(unlink remove, break)
 652
 653 # Some systems don't have sbrk().
 654 AC_CHECK_FUNCS(sbrk)
 655
 656 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 657 # enough, but on some of those systems, the assert macro relies on requoting
 658 # working properly!
 659 GAS_WORKING_ASSERT
 660
 661 # On some systems, the system header files may not declare malloc, realloc,
 662 # and free.  There are places where gas needs these functions to have been
 663 # declared -- such as when taking their addresses.
 664 gas_test_headers="
 665 #ifdef HAVE_MEMORY_H
 666 #include <memory.h>
 667 #endif
 668 #ifdef HAVE_STRING_H
 669 #include <string.h>
 670 #else
 671 #ifdef HAVE_STRINGS_H
 672 #include <strings.h>
 673 #endif
 674 #endif
 675 #ifdef HAVE_STDLIB_H
 676 #include <stdlib.h>
 677 #endif
 678 #ifdef HAVE_UNISTD_H
 679 #include <unistd.h>
 680 #endif
 681 "
 682 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 683 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 684 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 685 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 686
 687 # Does errno.h declare errno, or do we have to add a separate declaration
 688 # for it?
 689 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 690 #ifdef HAVE_ERRNO_H
 691 #include <errno.h>
 692 #endif
 693 ])
 694
 695 dnl This must come last.
 696
 697 dnl We used to make symlinks to files in the source directory, but now
 698 dnl we just use the right name for .c files, and create .h files in
 699 dnl the build directory which include the right .h file.  Make sure
 700 dnl the old symlinks don't exist, so that a reconfigure in an existing
 701 dnl directory behaves reasonably.
 702
 703 AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in,
 704 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 705  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 706  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 707  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 708  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 709  case ${target_cpu_type} in
 710  m32r) echo '#include "opcodes/'"${target_cpu_type}"'-opc.h"' > cgen-opc.h ;;
 711  esac],
 712 [target_cpu_type=${target_cpu_type}
 713  obj_format=${obj_format}
 714  te_file=${te_file}])