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 AC_PREREQ(2.3)dnl We only need 2.0, but pre-2.3 loses on some AIX version.
   8 AC_INIT(as.h)dnl
   9 dnl
  10 user_bfd_gas=
  11 AC_ARG_ENABLE(bfd-assembler,
  12 [  --enable-bfd-assembler  use BFD back end for writing object files],
  13 [case "${enableval}" in
  14   yes) need_bfd=yes user_bfd_gas=yes ;;
  15   no)  user_bfd_gas=no ;;
  16   *)   AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
  17 esac])dnl
  18 AC_ARG_ENABLE(targets,
  19 [    targets            alternative target configurations besides the primary],
  20 [case "${enableval}" in
  21   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
  22             ;;
  23   no)       enable_targets= ;;
  24   *)        enable_targets=$enableval ;;
  25 esac])dnl
  26 AC_ARG_ENABLE(shared,
  27 [  --enable-shared         build shared BFD library],
  28 [case "${enableval}" in
  29   yes) shared=true ;;
  30   no)  shared=false ;;
  31   *)   AC_MSG_ERROR([bad value ${enableval} for BFD shared option]) ;;
  32 esac])dnl
  33
  34 # Generate a header file -- gets more post-processing by Makefile later.
  35 AC_CONFIG_HEADER(conf)
  36
  37 dnl For recursion to work right, this must be an absolute pathname.
  38 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
  39 AC_CANONICAL_SYSTEM
  40 AC_ARG_PROGRAM
  41
  42 te_file=generic
  43
  44 canon_targets=""
  45 if test -n "$enable_targets" ; then
  46   for t in `echo $enable_targets | sed 's/,/ /g'`; do
  47     result=`$ac_config_sub $t 2>/dev/null`
  48     if test -n "$result" ; then
  49       canon_targets="$canon_targets $result"
  50 #    else
  51 #      # Permit "all", etc.  We don't support it yet though.
  52 #      canon_targets="$canon_targets $t"
  53     fi
  54   done
  55   GAS_UNIQ(canon_targets)
  56 fi
  57
  58 emulations=""
  59
  60 for this_target in $target $canon_targets ; do
  61
  62     eval `echo $this_target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
  63
  64     # check for architecture variants
  65     case ${cpu} in
  66       armeb)            cpu_type=arm endian=big ;;
  67       arm*)             cpu_type=arm endian=little ;;
  68       hppa*)            cpu_type=hppa ;;
  69 changequote(,)dnl
  70       i[456]86)         cpu_type=i386 ;;
  71       m680[012346]0)    cpu_type=m68k ;;
  72       m68008)           cpu_type=m68k ;;
  73       m683??)           cpu_type=m68k ;;
  74 changequote([,])dnl
  75       m8*)              cpu_type=m88k ;;
  76       mips*el)          cpu_type=mips endian=little;;
  77       mips*)            cpu_type=mips endian=big ;;
  78       powerpcle*)       cpu_type=ppc endian=little ;;
  79       powerpc*)         cpu_type=ppc endian=big ;;
  80       rs6000*)          cpu_type=ppc ;;
  81       sparc64)          cpu_type=sparc want_sparc_v9=true ;;
  82       sparc*)           cpu_type=sparc ;;
  83       *)                cpu_type=${cpu} ;;
  84     esac
  85
  86     if test ${this_target} = $target ; then
  87       target_cpu_type=${cpu_type}
  88     elif test ${target_cpu_type} != ${cpu_type} ; then
  89       continue
  90     fi
  91
  92     targ=${cpu_type}
  93     generic_target=${cpu_type}-$vendor-$os
  94     dev=no
  95     bfd_gas=no
  96     em=generic
  97
  98     # assign object format
  99     case ${generic_target} in
 100       a29k-*-coff)          fmt=coff targ=ebmon29k ;;
 101       a29k-amd-udi)         fmt=coff targ=ebmon29k ;;
 102       a29k-amd-ebmon)       fmt=coff targ=ebmon29k ;;
 103       a29k-nyu-sym1)        fmt=coff targ=ebmon29k ;;
 104       a29k-*-vxworks*)      fmt=coff ;;
 105
 106       alpha-*-netware*)     fmt=ecoff ;;
 107       alpha-*-osf*)         fmt=ecoff ;;
 108       alpha-*-linux*)       fmt=ecoff ;;
 109
 110 # start-sanitize-arc
 111       arc-*-elf*)           fmt=elf bfd_gas=yes ;;
 112 # end-sanitize-arc
 113
 114       arm-*-riscix*)        fmt=aout targ=arm-lit ;;
 115       arm-*-aout)           fmt=aout
 116                             case "$endian" in
 117                               big)      targ=arm-big ;;
 118                               *)        targ=arm-lit ;;
 119                             esac
 120                             ;;
 121       arm-*-coff)           fmt=coff ;;
 122       arm-*-riscix*)        fmt=aout ;;
 123       arm-*-pe)             fmt=coff targ=armcoff em=pe ;;
 124
 125       hppa-*-*elf*)         fmt=elf em=hppa ;;
 126       hppa-*-lites*)        fmt=elf em=hppa ;;
 127       hppa-*-osf*)          fmt=som em=hppa ;;
 128       hppa-*-hpux*)         fmt=som em=hppa ;;
 129       hppa-*-bsd*)          fmt=som em=hppa ;;
 130       hppa-*-hiux*)         fmt=som em=hppa ;;
 131
 132       h8300-*-coff)         fmt=coff ;;
 133
 134       i386-ibm-aix*)        fmt=coff targ=i386coff
 135                              em=i386aix ;;
 136       i386-*-bsd*)          fmt=aout em=386bsd ;;
 137       i386-*-netbsd0.8)     fmt=aout em=386bsd ;;
 138       i386-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes;;
 139       i386-*-linux*aout* | i386-*-linuxoldld)   fmt=aout em=linux ;;
 140       i386-*-linux*coff*)   fmt=coff em=linux
 141                              targ=i386coff ;;
 142       i386-*-linux*)        fmt=elf em=linux ;;
 143       i386-*-lynxos*)       fmt=coff targ=i386coff
 144                              em=lynx ;;
 145       i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
 146                             fmt=elf ;;
 147       i386-*-sco*elf*)      fmt=elf targ=sco5 ;;
 148       i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
 149                             fmt=coff targ=i386coff ;;
 150       i386-*-vsta)          fmt=aout ;;
 151       i386-*-go32)          fmt=coff targ=i386coff ;;
 152       i386-*-gnu*)          fmt=elf ;;
 153       i386-*-mach*)
 154                             fmt=aout em=mach bfd_gas=yes ;;
 155       i386-*-msdos*)        fmt=aout ;;
 156       i386-*-moss*)         fmt=elf ;;
 157       i386-*-pe)            fmt=coff targ=i386coff em=pe ;;
 158       i386-*-cygwin32)      fmt=coff targ=i386coff em=pe ;;
 159       i386-*-*nt)           fmt=coff targ=i386coff em=pe ;;
 160       i960-*-bout)          fmt=bout ;;
 161       i960-*-coff)          fmt=coff em=ic960 targ=ic960coff ;;
 162       i960-*-nindy*)        fmt=bout ;;
 163       i960-*-vxworks4*)     fmt=bout ;;
 164       i960-*-vxworks5.0)    fmt=bout ;;
 165       i960-*-vxworks5.*)    fmt=coff em=ic960 targ=ic960coff ;;
 166       i960-*-vxworks*)      fmt=bout ;;
 167
 168       m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
 169                             fmt=aout em=sun3 ;;
 170       m68k-motorola-sysv*)  fmt=coff targ=m68kcoff em=delta ;;
 171       m68k-bull-sysv3*)     fmt=coff targ=m68kcoff em=dpx2 ;;
 172       m68k-apollo-*)        fmt=coff targ=apollo em=apollo ;;
 173       m68k-*-sysv4 | m68k-*-elf) # must be before -sysv*
 174                             fmt=elf ;;
 175       m68k-*-coff | m68k-*-sysv*)
 176                             fmt=coff targ=m68kcoff ;;
 177       m68k-*-hpux*)         fmt=hp300 em=hp300 ;;
 178       m68k-*-linux*aout*)   fmt=aout em=linux ;;
 179       m68k-*-linux*)        fmt=elf em=linux ;;
 180       m68k-*-lynxos*)       fmt=coff targ=m68kcoff
 181                              em=lynx ;;
 182       m68k-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes ;;
 183       m68k-apple-aux*)      fmt=coff targ=m68kcoff em=aux ;;
 184       m68k-*-psos*)         fmt=elf em=psos;;
 185
 186       m88k-motorola-sysv3*) fmt=coff targ=m88kcoff em=delt88 ;;
 187       m88k-*-coff*)         fmt=coff targ=m88kcoff ;;
 188
 189       # don't change em like *-*-bsd does
 190       mips-dec-netbsd*)     fmt=elf targ=mips-lit endian=little ;;
 191       mips-dec-bsd*)        fmt=aout targ=mips-lit ;;
 192       mips-sony-bsd*)       fmt=ecoff targ=mips-big ;;
 193       mips-*-bsd*)          AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
 194       mips-*-ultrix*)       fmt=ecoff targ=mips-lit endian=little ;;
 195       mips-*-ecoff*)        fmt=ecoff
 196                             case "$endian" in
 197                             big) targ=mips-big ;;
 198                             *)   targ=mips-lit ;;
 199                             esac
 200                             ;;
 201       mips-*-ecoff*)        fmt=ecoff targ=mips-big ;;
 202       mips-*-gnu*)          fmt=aout
 203                             case "$endian" in
 204                             big) targ=mips-big ;;
 205                             *)   targ=mips-lit ;;
 206                             esac
 207                             ;;
 208       mips-*-irix5*)        fmt=elf targ=mips-big ;;
 209       mips-*-irix*)         fmt=ecoff targ=mips-big ;;
 210       mips-*-riscos*)       fmt=ecoff targ=mips-big ;;
 211       mips-*-sysv*)         fmt=ecoff targ=mips-big ;;
 212       mips-*-elf*)          fmt=elf
 213                             case "$endian" in
 214                             big) targ=mips-big ;;
 215                             *)   targ=mips-lit ;;
 216                             esac
 217                             ;;
 218       ppc-*-pe | ppc-*-cygwin32 | ppc-*-winnt*)
 219                             fmt=coff em=pe
 220                             case "$endian" in
 221                             big) targ=ppc-big ;;
 222                             *)   targ=ppc-lit ;;
 223                             esac
 224                             ;;
 225       ppc-*-aix*)           fmt=coff ;;
 226       ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
 227                             fmt=elf
 228                             case "$endian" in
 229                             big)  targ=ppc-big ;;
 230                             *)    targ=ppc-lit ;;
 231                             esac
 232                             ;;
 233       ppc-*-macos* | ppc-*-mpw*)
 234                             fmt=coff em=macos ;;
 235       ppc-*-netware*)       fmt=elf em=ppcnw ;;
 236
 237       sh-*-coff)            fmt=coff ;;
 238
 239 # start-sanitize-rce
 240       rce-*-aout)           fmt=aout ;;
 241 # end-sanitize-rce
 242
 243       ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
 244       ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;
 245
 246       sparc-*-sunos4*)      fmt=aout em=sun3 ;;
 247       sparc-*-aout | sparc*-*-vxworks)
 248                             fmt=aout ;;
 249       sparc-*-coff)         fmt=coff ;;
 250       sparc-*-lynxos*)      fmt=coff em=lynx ;;
 251       sparc-fujitsu-none)   fmt=aout ;;
 252       sparc-*-elf | sparc-*-solaris*)
 253                             fmt=elf ;;
 254       sparc-*-netbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
 255
 256       vax-*-bsd* | vax-*-ultrix*)
 257                             fmt=aout ;;
 258       vax-*-vms)            fmt=vms ;;
 259
 260       z8k-*-coff | z8k-*-sim)
 261                             fmt=coff ;;
 262
 263       w65-*-*)              fmt=coff ;;
 264
 265       *-*-aout | *-*-scout)
 266                             fmt=aout ;;
 267       *-*-nindy*)
 268                             fmt=bout ;;
 269       *-*-bsd*)
 270                             fmt=aout em=sun3 ;;
 271       *-*-generic)          fmt=generic ;;
 272       *-*-xray | *-*-hms)   fmt=coff ;;
 273       *-*-sim)              fmt=coff ;;
 274       *-*-elf | *-*-sysv4* | *-*-solaris*)
 275                             AC_MSG_WARN(GAS support for ${generic_target} is incomplete.)
 276                             fmt=elf dev=yes ;;
 277       *-*-vxworks)          fmt=aout ;;
 278       *-*-netware)          fmt=elf ;;
 279     esac
 280
 281     case ${cpu_type}-${fmt} in
 282       arm-*)    bfd_gas=yes ;;
 283     # not yet
 284     # i386-aout)        bfd_gas=preferred ;;
 285       mips-*)   bfd_gas=yes ;;
 286       ns32k-*)  bfd_gas=yes ;;
 287       ppc-*)    bfd_gas=yes ;;
 288       sparc-*)  bfd_gas=yes ;;
 289       *-elf)    bfd_gas=yes ;;
 290       *-ecoff)  bfd_gas=yes ;;
 291       *-som)    bfd_gas=yes ;;
 292       *)                ;;
 293     esac
 294
 295 # Other random stuff.
 296
 297     # do we need the opcodes library?
 298     case ${cpu_type} in
 299       alpha | vax | i386)
 300         ;;
 301       *)
 302         need_opcodes=yes
 303         if test "${shared}" = "true"; then
 304           # A shared libopcodes must be linked against libbfd.
 305           need_bfd=yes
 306         fi
 307         ;;
 308     esac
 309
 310     test -n "$want_sparc_v9" && AC_DEFINE(SPARC_V9)
 311
 312     case ${cpu}-${vendor}-${os} in
 313       sparc64-*-elf*) AC_DEFINE(SPARC_ARCH64) ;;
 314     esac
 315
 316     case ${cpu_type} in
 317       m68k)
 318         case ${extra_objects} in
 319         *m68k-parse.o*) ;;
 320         *) extra_objects="$extra_objects m68k-parse.o" ;;
 321         esac
 322         ;;
 323     esac
 324
 325 # See if we really can support this configuration with the emulation code.
 326
 327     if test $this_target = $target ; then
 328       primary_bfd_gas=$bfd_gas
 329       obj_format=$fmt
 330       gas_target=$targ
 331       te_file=$em
 332
 333       if test $bfd_gas = no ; then
 334         # Can't support other configurations this way.
 335         break
 336       fi
 337     elif test $bfd_gas = no ; then
 338       # Can't support this configuration.
 339       break
 340     fi
 341
 342 # From target name and format, produce a list of supported emulations.
 343
 344     case ${generic_target}-${fmt} in
 345       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 346       mips-*-*-ecoff)   case "$endian" in
 347                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 348                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 349                         esac ;;
 350       mips-*-*-elf)     case "$endian" in
 351                         big)    emulation="mipsbelf mipslelf mipself" ;;
 352                         *)      emulation="mipslelf mipsbelf mipself" ;;
 353                         esac ;;
 354     esac
 355
 356     emulations="$emulations $emulation"
 357
 358 done
 359
 360 # Assign floating point type.  Most processors with FP support
 361 # IEEE FP.  On those that don't support FP at all, usually IEEE
 362 # is emulated.
 363 case ${target_cpu} in
 364   vax | tahoe ) atof=${target_cpu} ;;
 365   *)            atof=ieee ;;
 366 esac
 367
 368 case "${obj_format}" in
 369   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 370 esac
 371
 372 dnl
 373 dnl Make sure the desired support files exist.
 374 dnl
 375
 376 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 377   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 378 fi
 379
 380 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 381   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 382 fi
 383
 384 # and target makefile frag
 385
 386 target_frag=${srcdir}/config/${gas_target}.mt
 387 if test ! -r ${target_frag}; then
 388   target_frag=/dev/null # ick! but subst_file can't be conditionalized
 389 fi
 390 AC_SUBST_FILE(target_frag)
 391
 392 case ${user_bfd_gas}-${primary_bfd_gas} in
 393   yes-yes | no-no)
 394     # We didn't override user's choice.
 395     ;;
 396   no-yes)
 397     AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
 398     ;;
 399   no-preferred)
 400     primary_bfd_gas=no
 401     ;;
 402   *-preferred)
 403     primary_bfd_gas=yes
 404     ;;
 405   yes-*)
 406     primary_bfd_gas=yes
 407     ;;
 408   -*)
 409     # User specified nothing.
 410     ;;
 411 esac
 412
 413 # Some COFF configurations want these random other flags set.
 414 case ${obj_format} in
 415   coff)
 416     case ${target_cpu_type} in
 417       i386) AC_DEFINE(I386COFF) ;;
 418       m68k) AC_DEFINE(M68KCOFF) ;;
 419       m88k) AC_DEFINE(M88KCOFF) ;;
 420     esac
 421     ;;
 422 esac
 423
 424 # Getting this done right is going to be a bitch.  Each configuration specified
 425 # with --enable-targets=... should be checked for environment, format, cpu, and
 426 # bfd_gas setting.
 427 #
 428 # For each configuration, the necessary object file support code must be linked
 429 # in.  This might be only one, it might be up to four.  The necessary emulation
 430 # code needs to be provided, too.
 431 #
 432 # And then there's "--enable-targets=all"....
 433 #
 434 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 435
 436 formats="${obj_format}"
 437 emfiles=""
 438 EMULATIONS=""
 439 GAS_UNIQ(emulations)
 440 for em in . $emulations ; do
 441   case $em in
 442     .)  continue ;;
 443     mipsbelf | mipslelf)
 444         fmt=elf   file=mipself ;;
 445     mipsbecoff | mipslecoff)
 446         fmt=ecoff file=mipsecoff ;;
 447   esac
 448   formats="$formats $fmt"
 449   emfiles="$emfiles e-$file.o"
 450   EMULATIONS="$EMULATIONS &$em,"
 451 done
 452 GAS_UNIQ(formats)
 453 GAS_UNIQ(emfiles)
 454 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 455   for fmt in $formats ; do
 456     case $fmt in
 457       aout)     AC_DEFINE(OBJ_MAYBE_AOUT)    ;;
 458       bout)     AC_DEFINE(OBJ_MAYBE_BOUT)    ;;
 459       coff)     AC_DEFINE(OBJ_MAYBE_COFF)    ;;
 460       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF)   ;;
 461       elf)      AC_DEFINE(OBJ_MAYBE_ELF)     ;;
 462       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
 463       hp300)    AC_DEFINE(OBJ_MAYBE_HP300)   ;;
 464       ieee)     AC_DEFINE(OBJ_MAYBE_IEEE)    ;;
 465       som)      AC_DEFINE(OBJ_MAYBE_SOM)     ;;
 466       vms)      AC_DEFINE(OBJ_MAYBE_VMS)     ;;
 467     esac
 468     extra_objects="$extra_objects obj-$fmt.o"
 469   done
 470   obj_format=multi
 471 fi
 472 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 473   te_file=multi
 474   extra_objects="$extra_objects $emfiles"
 475   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 476   AC_DEFINE(USE_EMULATIONS)
 477 fi
 478 AC_SUBST(extra_objects)
 479 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
 480 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
 481
 482 files="config/tc-${target_cpu_type}.c config/tc-${target_cpu_type}.h \
 483         config/obj-${obj_format}.h config/obj-${obj_format}.c \
 484         config/te-${te_file}.h config/atof-${atof}.c \
 485         $extra_files"
 486 links="targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c \
 487         $extra_links"
 488
 489 case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
 490   yes-*-coff)   need_bfd=yes ;;
 491   no-*-coff)    need_bfd=yes
 492                 AC_DEFINE(MANY_SEGMENTS) ;;
 493 esac
 494
 495 reject_dev_configs=yes
 496
 497 case ${reject_dev_configs}-${dev} in
 498   yes-yes) # Oops.
 499     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 500     ;;
 501 esac
 502
 503 AC_SUBST(target_cpu_type)
 504 AC_SUBST(obj_format)
 505 AC_SUBST(atof)
 506 dnl AC_SUBST(emulation)
 507
 508 AC_LINK_FILES($files, $links)
 509
 510 case "${primary_bfd_gas}" in
 511   yes)  AC_DEFINE(BFD_ASSEMBLER)
 512         need_bfd=yes ;;
 513 esac
 514
 515 # do we need the opcodes library?
 516 case "${need_opcodes}" in
 517   yes)
 518     OPCODES_DEP=../opcodes/libopcodes.a
 519     OPCODES_LIB='-L../opcodes -lopcodes'
 520
 521     # We need to handle some special cases if opcodes was built shared.
 522     if test "${shared}" = "true"; then
 523       case "${host}" in
 524       *-*-sunos*)
 525       # On SunOS, we must link against the name we are going to install,
 526       # not -lbfd, since SunOS does not support SONAME.
 527       OPCODES_LIB='-L../opcodes -l`echo opcodes | sed '"'"'$(program_transform_name)'"'"'`'
 528       ;;
 529       esac
 530     fi
 531     ;;
 532 esac
 533 AC_SUBST(OPCODES_DEP)
 534 AC_SUBST(OPCODES_LIB)
 535
 536 case "${need_bfd}" in
 537   yes)
 538     BFDDEP=../bfd/libbfd.a
 539     BFDLIB='-L../bfd -lbfd'
 540     ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
 541
 542     # We need to handle some special cases if BFD was built shared.
 543     if test "${shared}" = "true"; then
 544       case "${host}" in
 545         *-*-sunos*)
 546         # On SunOS, we must link against the name we are going to install,
 547         # not -lbfd, since SunOS does not support SONAME.
 548         BFDLIB='-L../bfd -l`echo bfd | sed '"'"'$(program_transform_name)'"'"'`'
 549         ;;
 550       esac
 551     fi
 552     ;;
 553 esac
 554 AC_SUBST(BFDDEP)
 555 AC_SUBST(BFDLIB)
 556 AC_SUBST(ALL_OBJ_DEPS)
 557
 558 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}")
 559 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}")
 560 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}")
 561 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}")
 562 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}")
 563
 564 AC_PROG_CC
 565 AC_PROG_INSTALL
 566
 567 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
 568
 569 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 570 # people who are not cross-compiling but are compiling cross-assemblers.
 571 AC_MSG_CHECKING(whether compiling a cross-assembler)
 572 if test "${host}" = "${target}"; then
 573   cross_gas=no
 574 else
 575   cross_gas=yes
 576   AC_DEFINE(CROSS_COMPILE)
 577 fi
 578 AC_MSG_RESULT($cross_gas)
 579
 580 dnl ansidecl.h will deal with const
 581 dnl AC_CONST
 582 AC_FUNC_ALLOCA
 583 AC_C_INLINE
 584
 585 # VMS doesn't have unlink.
 586 AC_CHECK_FUNCS(unlink remove, break)
 587
 588 # Some systems don't have sbrk().
 589 AC_CHECK_FUNCS(sbrk)
 590
 591 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 592 # enough, but on some of those systems, the assert macro relies on requoting
 593 # working properly!
 594 GAS_WORKING_ASSERT
 595
 596 # On some systems, the system header files may not declare malloc, realloc,
 597 # and free.  There are places where gas needs these functions to have been
 598 # declared -- such as when taking their addresses.
 599 gas_test_headers="
 600 #ifdef HAVE_MEMORY_H
 601 #include <memory.h>
 602 #endif
 603 #ifdef HAVE_STRING_H
 604 #include <string.h>
 605 #endif
 606 #ifdef HAVE_STDLIB_H
 607 #include <stdlib.h>
 608 #endif
 609 #ifdef HAVE_UNISTD_H
 610 #include <unistd.h>
 611 #endif
 612 "
 613 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 614 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 615
 616 # Does errno.h declare errno, or do we have to add a separate declaration
 617 # for it?
 618 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 619 #ifdef HAVE_ERRNO_H
 620 #include <errno.h>
 621 #endif
 622 ])
 623
 624 HLDFLAGS=
 625 RPATH_ENVVAR=LD_LIBRARY_PATH
 626 # If we have shared libraries, try to set rpath reasonably.
 627 if test "${shared}" = "true"; then
 628   case "${host}" in
 629   *-*-hpux*)
 630     HLDFLAGS='-Wl,+s,+b,$(libdir)'
 631     RPATH_ENVVAR=SHLIB_PATH
 632     ;;
 633   *-*-irix5*)
 634     HLDFLAGS='-Wl,-rpath,$(libdir)'
 635     ;;
 636   *-*-linux*aout*)
 637     ;;
 638   *-*-linux*)
 639     HLDFLAGS='-Wl,-rpath,$(libdir)'
 640     ;;
 641   *-*-sysv4* | *-*-solaris*)
 642     HLDFLAGS='-R $(libdir)'
 643     ;;
 644   esac
 645 fi
 646
 647 # On SunOS, if the linker supports the -rpath option, use it to
 648 # prevent ../bfd and ../opcodes from being included in the run time
 649 # search path.
 650 case "${host}" in
 651   *-*-sunos*)
 652     echo 'main () { }' > conftest.c
 653     ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
 654     if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
 655       :
 656     elif grep 'No such file' conftest.t >/dev/null 2>&1; then
 657       :
 658     elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
 659       :
 660     elif test "${shared}" = "true"; then
 661       HLDFLAGS='-Wl,-rpath=$(libdir)'
 662     else
 663       HLDFLAGS='-Wl,-rpath='
 664     fi
 665     rm -f conftest.t conftest.c conftest
 666     ;;
 667 esac
 668 AC_SUBST(HLDFLAGS)
 669 AC_SUBST(RPATH_ENVVAR)
 670
 671 dnl This must come last.
 672 AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in)