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(2.59)
   9 AC_INIT
  10 AC_CONFIG_SRCDIR(as.h)
  11
  12 dnl Autoconf 2.57 will find the aux dir without this.  However, unless
  13 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
  14 dnl gas/ instead of gas/../.
  15 AC_CONFIG_AUX_DIR(..)
  16 AC_CANONICAL_TARGET
  17 AC_ISC_POSIX
  18
  19 changequote(,)dnl
  20 BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[         ]*\([^  ]*\)[   ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
  21 changequote([,])dnl
  22 AM_INIT_AUTOMAKE(gas, ${BFD_VERSION})
  23
  24 AC_PROG_CC
  25 AC_GNU_SOURCE
  26 AC_USE_SYSTEM_EXTENSIONS
  27 ACX_LARGEFILE
  28
  29 LT_INIT
  30
  31 AC_ARG_ENABLE(targets,
  32 [  --enable-targets        alternative target configurations besides the primary],
  33 [case "${enableval}" in
  34   yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
  35             ;;
  36   no)       enable_targets= ;;
  37   *)        enable_targets=$enableval ;;
  38 esac])dnl
  39
  40 ac_checking=yes
  41 if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
  42   ac_checking=
  43 fi
  44 AC_ARG_ENABLE(checking,
  45 [  --enable-checking       enable run-time checks],
  46 [case "${enableval}" in
  47   no|none)  ac_checking= ;;
  48   *)        ac_checking=yes ;;
  49 esac])dnl
  50 if test x$ac_checking != x ; then
  51   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
  52 fi
  53
  54 using_cgen=no
  55
  56 AM_BINUTILS_WARNINGS
  57
  58 # Generate a header file
  59 AC_CONFIG_HEADERS(config.h:config.in)
  60
  61 # If we are on a DOS filesystem, we must use gdb.ini rather than
  62 # .gdbinit.
  63 case "${host}" in
  64   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
  65     GDBINIT="gdb.ini"
  66     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
  67     ;;
  68   *)
  69     GDBINIT=".gdbinit"
  70     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
  71     ;;
  72 esac
  73 AC_SUBST(GDBINIT)
  74
  75 #We need this for the host.  BOUT header is in host order.
  76 AC_C_BIGENDIAN
  77
  78 te_file=generic
  79
  80 # Makefile target for installing gas in $(tooldir)/bin.
  81 install_tooldir=install-exec-tooldir
  82
  83 canon_targets=""
  84 all_targets=no
  85 if test -n "$enable_targets" ; then
  86   for t in `echo $enable_targets | sed 's/,/ /g'`; do
  87     if test $t = "all"; then
  88       all_targets=yes
  89       continue
  90     fi
  91     result=`$ac_config_sub $t 2>/dev/null`
  92     if test -n "$result" ; then
  93       canon_targets="$canon_targets $result"
  94 #    else
  95 #      # Permit "all", etc.  We don't support it yet though.
  96 #      canon_targets="$canon_targets $t"
  97     fi
  98   done
  99   GAS_UNIQ(canon_targets)
 100 fi
 101
 102 emulations=""
 103
 104 for this_target in $target $canon_targets ; do
 105
 106     targ=${this_target}
 107     . ${srcdir}/configure.tgt
 108
 109     case ${target_cpu} in
 110       crisv32)
 111         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
 112                            [Default CRIS architecture.])
 113         ;;
 114     esac
 115
 116     if test ${this_target} = $target ; then
 117       target_cpu_type=${cpu_type}
 118     elif test ${target_cpu_type} != ${cpu_type} ; then
 119       continue
 120     fi
 121
 122     generic_target=${cpu_type}-${target_vendor}-${target_os}
 123     case ${generic_target} in
 124       i386-*-sco3.2v5*)
 125         if test ${this_target} = $target; then
 126           AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
 127         fi
 128         ;;
 129
 130       i386-*-msdosdjgpp* \
 131       | i386-*-go32* \
 132       | i386-go32-rtems*)
 133         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 134         ;;
 135
 136       i860-*-*)
 137         AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
 138         ;;
 139
 140       microblaze*)
 141         ;;
 142
 143       mips-sony-bsd*)
 144         ;;
 145       mips-*-bsd*)
 146         AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.)
 147         ;;
 148
 149 changequote(,)dnl
 150       ppc-*-aix[5-9].*)
 151 changequote([,])dnl
 152         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 153                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 154         ;;
 155       ppc-*-linux-*)
 156         case "$endian" in
 157           big)  ;;
 158           *)    AC_MSG_ERROR(GNU/Linux must be configured big endian) ;;
 159         esac
 160         ;;
 161       ppc-*-solaris*)
 162         if test ${this_target} = $target; then
 163           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 164                     [Define if default target is PowerPC Solaris.])
 165         fi
 166         if test x${endian} = xbig; then
 167           AC_MSG_ERROR(Solaris must be configured little endian)
 168         fi
 169         ;;
 170
 171       sh*-*-symbianelf*)
 172         AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
 173         ;;
 174     esac
 175
 176     if test ${this_target} = $target ; then
 177       endian_def=
 178       if test x${endian} = xbig; then
 179         endian_def=1
 180       elif test x${endian} = xlittle; then
 181         endian_def=0
 182       fi
 183       if test x${endian_def} != x; then
 184         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 185                            [Define as 1 if big endian.])
 186       fi
 187     fi
 188
 189 # Other random stuff.
 190
 191     case ${cpu_type} in
 192       mips)
 193         # Set mips_cpu to the name of the default CPU.
 194         case ${target_cpu} in
 195           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 196             mips_cpu=from-abi
 197             ;;
 198           mipsisa32 | mipsisa32el)
 199             mips_cpu=mips32
 200             ;;
 201           mipsisa32r2 | mipsisa32r2el)
 202             mips_cpu=mips32r2
 203             ;;
 204           mipsisa64 | mipsisa64el)
 205             mips_cpu=mips64
 206             ;;
 207           mipsisa64r2 | mipsisa64r2el)
 208             mips_cpu=mips64r2
 209             ;;
 210           mipstx39 | mipstx39el)
 211             mips_cpu=r3900
 212             ;;
 213           mips64vr | mips64vrel)
 214             mips_cpu=vr4100
 215             ;;
 216           mipsisa32r2* | mipsisa64r2*)
 217 changequote(,)dnl
 218             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 219 changequote([,])dnl
 220             ;;
 221           mips64* | mipsisa64* | mipsisa32*)
 222 changequote(,)dnl
 223             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 224 changequote([,])dnl
 225             ;;
 226           *)
 227             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 228             ;;
 229         esac
 230         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 231         # binaries.  It's a GNU extension that some OSes don't understand.
 232         # The value only matters on ELF targets.
 233         case ${target} in
 234           *-*-irix*)
 235             use_e_mips_abi_o32=0
 236             ;;
 237           *)
 238             use_e_mips_abi_o32=1
 239             ;;
 240         esac
 241         # Decide whether to generate 32-bit or 64-bit code by default.
 242         # Used to resolve -march=from-abi when an embedded ABI is selected.
 243         case ${target} in
 244           mips64*-*-* | mipsisa64*-*-*)
 245             mips_default_64bit=1
 246             ;;
 247           *)
 248             mips_default_64bit=0
 249             ;;
 250         esac
 251         # Decide which ABI to target by default.
 252         case ${target} in
 253           mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* | mips64*-kfreebsd*-gnu)
 254             mips_default_abi=N32_ABI
 255             ;;
 256           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 257             mips_default_abi=O32_ABI
 258             ;;
 259           mips64*-openbsd*)
 260             mips_default_abi=N64_ABI
 261             ;;
 262           *)
 263             mips_default_abi=NO_ABI
 264             ;;
 265         esac
 266         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 267                            [Default CPU for MIPS targets. ])
 268         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 269                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 270         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 271                            [Generate 64-bit code by default on MIPS targets. ])
 272         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 273                            [Choose a default ABI for MIPS targets. ])
 274         ;;
 275     esac
 276
 277     # Do we need the opcodes library?
 278     case ${cpu_type} in
 279       vax | tic30)
 280         ;;
 281
 282       *)
 283         need_opcodes=yes
 284
 285         case "${enable_shared}" in
 286         yes) shared_opcodes=true ;;
 287         *opcodes*) shared_opcodes=true ;;
 288         *) shared_opcodes=false ;;
 289         esac
 290         ;;
 291     esac
 292
 293     # Any other special object files needed ?
 294     case ${cpu_type} in
 295
 296       bfin)
 297         echo ${extra_objects} | grep -s "bfin-parse.o"
 298         if test $? -ne 0 ; then
 299           extra_objects="$extra_objects bfin-parse.o"
 300         fi
 301
 302         echo ${extra_objects} | grep -s "bfin-lex.o"
 303         if test $? -ne 0 ; then
 304           extra_objects="$extra_objects bfin-lex.o"
 305         fi
 306         ;;
 307
 308       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | openrisc)
 309         using_cgen=yes
 310         ;;
 311
 312       m32c)
 313         using_cgen=yes
 314         ;;
 315       frv)
 316         using_cgen=yes
 317         ;;
 318       m68k)
 319         case ${extra_objects} in
 320         *m68k-parse.o*) ;;
 321         *) extra_objects="$extra_objects m68k-parse.o" ;;
 322         esac
 323         ;;
 324
 325       mep)
 326         using_cgen=yes
 327         ;;
 328
 329       mips)
 330         echo ${extra_objects} | grep -s "itbl-parse.o"
 331         if test $? -ne 0 ; then
 332           extra_objects="$extra_objects itbl-parse.o"
 333         fi
 334
 335         echo ${extra_objects} | grep -s "itbl-lex.o"
 336         if test $? -ne 0 ; then
 337           extra_objects="$extra_objects itbl-lex.o"
 338         fi
 339
 340         echo ${extra_objects} | grep -s "itbl-ops.o"
 341         if test $? -ne 0 ; then
 342           extra_objects="$extra_objects itbl-ops.o"
 343         fi
 344         ;;
 345
 346       mt)
 347         using_cgen=yes
 348         ;;
 349
 350       i386 | s390 | sparc)
 351         if test $this_target = $target ; then
 352           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 353         fi
 354         ;;
 355
 356       rl78)
 357         echo ${extra_objects} | grep -s "rl78-parse.o"
 358         if test $? -ne 0 ; then
 359           extra_objects="$extra_objects rl78-parse.o"
 360         fi
 361         ;;
 362
 363       rx)
 364         echo ${extra_objects} | grep -s "rx-parse.o"
 365         if test $? -ne 0 ; then
 366           extra_objects="$extra_objects rx-parse.o"
 367         fi
 368         ;;
 369
 370       xstormy16)
 371         using_cgen=yes
 372         ;;
 373
 374       xc16x)
 375         using_cgen=yes
 376         ;;
 377
 378       xtensa)
 379         echo ${extra_objects} | grep -s "xtensa-relax.o"
 380         if test $? -ne 0 ; then
 381           extra_objects="$extra_objects xtensa-relax.o"
 382         fi
 383         ;;
 384
 385       *)
 386         ;;
 387     esac
 388
 389     if test $using_cgen = yes ; then
 390         case "x${extra_objects}" in
 391         *cgen.o*) ;;
 392         *) extra_objects="$extra_objects cgen.o" ;;
 393         esac
 394     fi
 395
 396 # See if we really can support this configuration with the emulation code.
 397
 398     if test $this_target = $target ; then
 399       obj_format=$fmt
 400       te_file=$em
 401     fi
 402
 403    case ${te_file} in
 404       vms) extra_objects="$extra_objects te-vms.o" ;;
 405    esac
 406
 407 # From target name and format, produce a list of supported emulations.
 408
 409     case ${generic_target}-${fmt} in
 410       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 411       mips*-*-linux*-* | mips*-*-freebsd* | mips*-*-kfreebsd*-gnu)
 412                         case "$endian" in
 413                         big)    emulation="mipsbelf mipslelf mipself" ;;
 414                         *)      emulation="mipslelf mipsbelf mipself" ;;
 415                         esac ;;
 416       mips-*-lnews*-ecoff) ;;
 417       mips-*-*-ecoff)   case "$endian" in
 418                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 419                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 420                         esac ;;
 421       mips-*-*-elf)     case "$endian" in
 422                         big)    emulation="mipsbelf mipslelf mipself" ;;
 423                         *)      emulation="mipslelf mipsbelf mipself" ;;
 424                         esac ;;
 425       mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 426       # i386-pc-pe-coff != i386-pc-coff.
 427       i386-*-pe-coff)   ;;
 428       # Uncommenting the next line will turn on support for i386 AOUT
 429       # for the default linux configuration
 430       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 431       #
 432       i386-*-aout)      emulation="i386aout" ;;
 433       i386-*-coff)      emulation="i386coff" ;;
 434       i386-*-elf)       emulation="i386elf" ;;
 435
 436       # Always all formats.  The first stated emulation becomes the default.
 437       cris-*-*aout*)    emulation="crisaout criself" ;;
 438       cris-*-*)         emulation="criself crisaout" ;;
 439     esac
 440
 441     emulations="$emulations $emulation"
 442
 443 done
 444
 445 # Turn on all targets if possible
 446 if test ${all_targets} = "yes"; then
 447   case ${target_cpu_type} in
 448   i386)
 449     case ${obj_format} in
 450     aout)
 451       emulations="$emulations i386coff i386elf"
 452       ;;
 453     coff)
 454       emulations="$emulations i386aout i386elf"
 455     ;;
 456     elf)
 457       emulations="$emulations i386aout i386coff"
 458       ;;
 459     esac
 460   ;;
 461   x86_64)
 462     case ${obj_format} in
 463     aout)
 464       emulations="$emulations i386coff i386elf"
 465       ;;
 466     coff)
 467       emulations="$emulations i386aout i386elf"
 468     ;;
 469     elf)
 470       emulations="$emulations i386aout i386coff"
 471       ;;
 472     esac
 473   ;;
 474   esac
 475 fi
 476
 477 # PE code has way too many macros tweaking behaviour
 478 case ${te_file} in
 479   pe*) emulations="" ;;
 480 esac
 481
 482 # Assign floating point type.  Most processors with FP support
 483 # IEEE FP.  On those that don't support FP at all, usually IEEE
 484 # is emulated.
 485 case ${target_cpu} in
 486   vax | pdp11 ) atof=vax ;;
 487   *)            atof=ieee ;;
 488 esac
 489
 490 case "${obj_format}" in
 491   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 492 esac
 493
 494 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 495 cgen_cpu_prefix=""
 496 if test $using_cgen = yes ; then
 497   case ${target_cpu} in
 498     *) cgen_cpu_prefix=${target_cpu} ;;
 499   esac
 500   AC_SUBST(cgen_cpu_prefix)
 501   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 502 fi
 503
 504 dnl
 505 dnl Make sure the desired support files exist.
 506 dnl
 507
 508 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 509   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 510 fi
 511
 512 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 513   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 514 fi
 515
 516 # Some COFF configurations want these random other flags set.
 517 case ${obj_format} in
 518   coff)
 519     case ${target_cpu_type} in
 520       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 521       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 522       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 523       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 524     esac
 525     ;;
 526 esac
 527
 528 # Getting this done right is going to be a bitch.  Each configuration specified
 529 # with --enable-targets=... should be checked for environment, format, cpu
 530 # setting.
 531 #
 532 # For each configuration, the necessary object file support code must be linked
 533 # in.  This might be only one, it might be up to four.  The necessary emulation
 534 # code needs to be provided, too.
 535 #
 536 # And then there's "--enable-targets=all"....
 537 #
 538 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 539
 540 formats="${obj_format}"
 541 emfiles=""
 542 EMULATIONS=""
 543 GAS_UNIQ(emulations)
 544 for em in . $emulations ; do
 545   case $em in
 546     .)  continue ;;
 547     mipsbelf | mipslelf | mipself)
 548         fmt=elf   file=mipself ;;
 549     mipsbecoff | mipslecoff | mipsecoff)
 550         fmt=ecoff file=mipsecoff ;;
 551     *coff)
 552         fmt=coff  file=$em ;;
 553     *aout)
 554         fmt=aout file=$em ;;
 555     *elf)
 556         fmt=elf file=$em ;;
 557   esac
 558   formats="$formats $fmt"
 559   emfiles="$emfiles e-$file.o"
 560   EMULATIONS="$EMULATIONS &$em,"
 561 done
 562 GAS_UNIQ(formats)
 563 GAS_UNIQ(emfiles)
 564 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 565   for fmt in $formats ; do
 566     case $fmt in
 567       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 568       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 569       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 570       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 571       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 572       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 573       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 574     esac
 575     extra_objects="$extra_objects obj-$fmt.o"
 576   done
 577   obj_format=multi
 578 fi
 579 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 580   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 581   # e-mips* has more than one emulation per file, e-i386* has just one at the
 582   # moment.  If only one emulation is specified, then don't define
 583   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 584   case "${obj_format}${emfiles}" in
 585     multi* | *mips*)
 586       extra_objects="$extra_objects $emfiles"
 587       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 588   esac
 589 fi
 590 AC_SUBST(extra_objects)
 591 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 592 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 593                    [Default emulation.])
 594
 595 reject_dev_configs=yes
 596
 597 case ${reject_dev_configs}-${dev} in
 598   yes-yes) # Oops.
 599     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 600     ;;
 601 esac
 602
 603 AC_SUBST(target_cpu_type)
 604 AC_SUBST(obj_format)
 605 AC_SUBST(te_file)
 606 AC_SUBST(install_tooldir)
 607 AC_SUBST(atof)
 608 dnl AC_SUBST(emulation)
 609
 610 # do we need the opcodes library?
 611 case "${need_opcodes}" in
 612 yes)
 613   OPCODES_LIB=../opcodes/libopcodes.la
 614   ;;
 615 esac
 616
 617 AC_SUBST(OPCODES_LIB)
 618
 619 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 620 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 621 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 622 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 623 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 624
 625 AC_PROG_YACC
 626 AM_PROG_LEX
 627
 628 ALL_LINGUAS="fr tr es rw id ru fi ja"
 629 ZW_GNU_GETTEXT_SISTER_DIR
 630 AM_PO_SUBDIRS
 631
 632 AM_MAINTAINER_MODE
 633 AM_CONDITIONAL(GENINSRC_NEVER, false)
 634 AC_EXEEXT
 635
 636 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h time.h sys/stat.h)
 637
 638 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 639 # people who are not cross-compiling but are compiling cross-assemblers.
 640 AC_MSG_CHECKING(whether compiling a cross-assembler)
 641 if test "${host}" = "${target}"; then
 642   cross_gas=no
 643 else
 644   cross_gas=yes
 645   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 646 fi
 647 AC_MSG_RESULT($cross_gas)
 648
 649 dnl ansidecl.h will deal with const
 650 dnl AC_C_CONST
 651 AC_FUNC_ALLOCA
 652 AC_C_INLINE
 653
 654 # VMS doesn't have unlink.
 655 AC_CHECK_FUNCS(unlink remove, break)
 656
 657 # Some systems don't have sbrk().
 658 AC_CHECK_FUNCS(sbrk)
 659
 660 # do we need the math library?
 661 case "${need_libm}" in
 662 yes)
 663   LT_LIB_M
 664   AC_SUBST(LIBM)
 665   ;;
 666 esac
 667
 668 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 669 # enough, but on some of those systems, the assert macro relies on requoting
 670 # working properly!
 671 GAS_WORKING_ASSERT
 672
 673 # On some systems, the system header files may not declare malloc, realloc,
 674 # and free.  There are places where gas needs these functions to have been
 675 # declared -- such as when taking their addresses.
 676 gas_test_headers="
 677 #ifdef HAVE_MEMORY_H
 678 #include <memory.h>
 679 #endif
 680 #ifdef HAVE_STRING_H
 681 #include <string.h>
 682 #else
 683 #ifdef HAVE_STRINGS_H
 684 #include <strings.h>
 685 #endif
 686 #endif
 687 #ifdef HAVE_STDLIB_H
 688 #include <stdlib.h>
 689 #endif
 690 #ifdef HAVE_UNISTD_H
 691 #include <unistd.h>
 692 #endif
 693 "
 694
 695 # Does errno.h declare errno, or do we have to add a separate declaration
 696 # for it?
 697 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 698 #ifdef HAVE_ERRNO_H
 699 #include <errno.h>
 700 #endif
 701 ])
 702
 703 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 704 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 705 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 706 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 707 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 708 if test $gas_cv_decl_getopt_unistd_h = yes; then
 709   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 710             [Is the prototype for getopt in <unistd.h> in the expected format?])
 711 fi
 712
 713 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 714 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 715 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 716 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 717 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 718 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 719
 720 AC_CHECK_DECLS([mempcpy])
 721 AC_CHECK_DECLS([vsnprintf])
 722
 723 BFD_BINARY_FOPEN
 724
 725 # Link in zlib if we can.  This allows us to write compressed debug sections.
 726 AM_ZLIB
 727
 728 # Support for VMS timestamps via cross compile
 729
 730 if test "$ac_cv_header_time_h" = yes; then
 731   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 732 fi
 733
 734 if test "$ac_cv_header_sys_stat_h" = yes; then
 735     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 736     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 737 fi
 738
 739
 740 dnl Required for html, pdf, install-pdf and install-html targets.
 741 AC_SUBST(datarootdir)
 742 AC_SUBST(docdir)
 743 AC_SUBST(htmldir)
 744 AC_SUBST(pdfdir)
 745
 746 dnl This must come last.
 747
 748 dnl We used to make symlinks to files in the source directory, but now
 749 dnl we just use the right name for .c files, and create .h files in
 750 dnl the build directory which include the right .h file.  Make sure
 751 dnl the old symlinks don't exist, so that a reconfigure in an existing
 752 dnl directory behaves reasonably.
 753
 754 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 755 AC_CONFIG_COMMANDS([default],
 756 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 757  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 758  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 759  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 760  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 761  if test "x$cgen_cpu_prefix" != x ; then
 762    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 763  fi],
 764 [target_cpu_type=${target_cpu_type}
 765  cgen_cpu_prefix=${cgen_cpu_prefix}
 766  obj_format=${obj_format}
 767  te_file=${te_file}])
 768
 769 AC_OUTPUT