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 ${target} in
 253           mips64*-linux* | mips-sgi-irix6*)
 254             mips_default_abi=N32_ABI
 255             ;;
 256           mips*-linux*)
 257             mips_default_abi=O32_ABI
 258             ;;
 259           mips64*-openbsd*)
 260             mips_default_abi=N64_ABI
 261             ;;
 262           *)
 263             mips_default_abi=NO_ABI
 264             ;;
 265         esac
 266         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$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       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       rx)
 357         echo ${extra_objects} | grep -s "rx-parse.o"
 358         if test $? -ne 0 ; then
 359           extra_objects="$extra_objects rx-parse.o"
 360         fi
 361         ;;
 362
 363       xstormy16)
 364         using_cgen=yes
 365         ;;
 366
 367       xc16x)
 368         using_cgen=yes
 369         ;;
 370
 371       xtensa)
 372         echo ${extra_objects} | grep -s "xtensa-relax.o"
 373         if test $? -ne 0 ; then
 374           extra_objects="$extra_objects xtensa-relax.o"
 375         fi
 376         ;;
 377
 378       *)
 379         ;;
 380     esac
 381
 382     if test $using_cgen = yes ; then
 383         case "x${extra_objects}" in
 384         *cgen.o*) ;;
 385         *) extra_objects="$extra_objects cgen.o" ;;
 386         esac
 387     fi
 388
 389 # See if we really can support this configuration with the emulation code.
 390
 391     if test $this_target = $target ; then
 392       obj_format=$fmt
 393       te_file=$em
 394     fi
 395
 396    case ${te_file} in
 397       vms) extra_objects="$extra_objects te-vms.o" ;;
 398    esac
 399
 400 # From target name and format, produce a list of supported emulations.
 401
 402     case ${generic_target}-${fmt} in
 403       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 404       mips*-*-linux*-*) case "$endian" in
 405                         big)    emulation="mipsbelf mipslelf mipself" ;;
 406                         *)      emulation="mipslelf mipsbelf mipself" ;;
 407                         esac ;;
 408       mips-*-lnews*-ecoff) ;;
 409       mips-*-*-ecoff)   case "$endian" in
 410                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 411                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 412                         esac ;;
 413       mips-*-*-elf)     case "$endian" in
 414                         big)    emulation="mipsbelf mipslelf mipself" ;;
 415                         *)      emulation="mipslelf mipsbelf mipself" ;;
 416                         esac ;;
 417       mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 418       # i386-pc-pe-coff != i386-pc-coff.
 419       i386-*-pe-coff)   ;;
 420       # Uncommenting the next line will turn on support for i386 AOUT
 421       # for the default linux configuration
 422       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 423       #
 424       i386-*-aout)      emulation="i386aout" ;;
 425       i386-*-coff)      emulation="i386coff" ;;
 426       i386-*-elf)       emulation="i386elf" ;;
 427
 428       # Always all formats.  The first stated emulation becomes the default.
 429       cris-*-*aout*)    emulation="crisaout criself" ;;
 430       cris-*-*)         emulation="criself crisaout" ;;
 431     esac
 432
 433     emulations="$emulations $emulation"
 434
 435 done
 436
 437 # Turn on all targets if possible
 438 if test ${all_targets} = "yes"; then
 439   case ${target_cpu_type} in
 440   i386)
 441     case ${obj_format} in
 442     aout)
 443       emulations="$emulations i386coff i386elf"
 444       ;;
 445     coff)
 446       emulations="$emulations i386aout i386elf"
 447     ;;
 448     elf)
 449       emulations="$emulations i386aout i386coff"
 450       ;;
 451     esac
 452   ;;
 453   x86_64)
 454     case ${obj_format} in
 455     aout)
 456       emulations="$emulations i386coff i386elf"
 457       ;;
 458     coff)
 459       emulations="$emulations i386aout i386elf"
 460     ;;
 461     elf)
 462       emulations="$emulations i386aout i386coff"
 463       ;;
 464     esac
 465   ;;
 466   esac
 467 fi
 468
 469 # Assign floating point type.  Most processors with FP support
 470 # IEEE FP.  On those that don't support FP at all, usually IEEE
 471 # is emulated.
 472 case ${target_cpu} in
 473   vax | pdp11 ) atof=vax ;;
 474   *)            atof=ieee ;;
 475 esac
 476
 477 case "${obj_format}" in
 478   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 479 esac
 480
 481 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 482 cgen_cpu_prefix=""
 483 if test $using_cgen = yes ; then
 484   case ${target_cpu} in
 485     *) cgen_cpu_prefix=${target_cpu} ;;
 486   esac
 487   AC_SUBST(cgen_cpu_prefix)
 488   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 489 fi
 490
 491 dnl
 492 dnl Make sure the desired support files exist.
 493 dnl
 494
 495 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 496   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 497 fi
 498
 499 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 500   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 501 fi
 502
 503 # Some COFF configurations want these random other flags set.
 504 case ${obj_format} in
 505   coff)
 506     case ${target_cpu_type} in
 507       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 508       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 509       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 510       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 511     esac
 512     ;;
 513 esac
 514
 515 # Getting this done right is going to be a bitch.  Each configuration specified
 516 # with --enable-targets=... should be checked for environment, format, cpu
 517 # setting.
 518 #
 519 # For each configuration, the necessary object file support code must be linked
 520 # in.  This might be only one, it might be up to four.  The necessary emulation
 521 # code needs to be provided, too.
 522 #
 523 # And then there's "--enable-targets=all"....
 524 #
 525 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 526
 527 formats="${obj_format}"
 528 emfiles=""
 529 EMULATIONS=""
 530 GAS_UNIQ(emulations)
 531 for em in . $emulations ; do
 532   case $em in
 533     .)  continue ;;
 534     mipsbelf | mipslelf | mipself)
 535         fmt=elf   file=mipself ;;
 536     mipsbecoff | mipslecoff | mipsecoff)
 537         fmt=ecoff file=mipsecoff ;;
 538     *coff)
 539         fmt=coff  file=$em ;;
 540     *aout)
 541         fmt=aout file=$em ;;
 542     *elf)
 543         fmt=elf file=$em ;;
 544   esac
 545   formats="$formats $fmt"
 546   emfiles="$emfiles e-$file.o"
 547   EMULATIONS="$EMULATIONS &$em,"
 548 done
 549 GAS_UNIQ(formats)
 550 GAS_UNIQ(emfiles)
 551 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 552   for fmt in $formats ; do
 553     case $fmt in
 554       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 555       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 556       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 557       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 558       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 559       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 560       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 561     esac
 562     extra_objects="$extra_objects obj-$fmt.o"
 563   done
 564   obj_format=multi
 565 fi
 566 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 567   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 568   # e-mips* has more than one emulation per file, e-i386* has just one at the
 569   # moment.  If only one emulation is specified, then don't define
 570   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 571   case "${obj_format}${emfiles}" in
 572     multi* | *mips*)
 573       extra_objects="$extra_objects $emfiles"
 574       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 575   esac
 576 fi
 577 AC_SUBST(extra_objects)
 578 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 579 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 580                    [Default emulation.])
 581
 582 reject_dev_configs=yes
 583
 584 case ${reject_dev_configs}-${dev} in
 585   yes-yes) # Oops.
 586     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 587     ;;
 588 esac
 589
 590 AC_SUBST(target_cpu_type)
 591 AC_SUBST(obj_format)
 592 AC_SUBST(te_file)
 593 AC_SUBST(install_tooldir)
 594 AC_SUBST(atof)
 595 dnl AC_SUBST(emulation)
 596
 597 # do we need the opcodes library?
 598 case "${need_opcodes}" in
 599 yes)
 600   OPCODES_LIB=../opcodes/libopcodes.la
 601   ;;
 602 esac
 603
 604 AC_SUBST(OPCODES_LIB)
 605
 606 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 607 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 608 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 609 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 610 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 611
 612 AC_PROG_YACC
 613 AM_PROG_LEX
 614
 615 ALL_LINGUAS="fr tr es rw id ru"
 616 ZW_GNU_GETTEXT_SISTER_DIR
 617 AM_PO_SUBDIRS
 618
 619 AM_MAINTAINER_MODE
 620 AM_CONDITIONAL(GENINSRC_NEVER, false)
 621 AC_EXEEXT
 622
 623 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h time.h sys/stat.h)
 624
 625 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 626 # people who are not cross-compiling but are compiling cross-assemblers.
 627 AC_MSG_CHECKING(whether compiling a cross-assembler)
 628 if test "${host}" = "${target}"; then
 629   cross_gas=no
 630 else
 631   cross_gas=yes
 632   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 633 fi
 634 AC_MSG_RESULT($cross_gas)
 635
 636 dnl ansidecl.h will deal with const
 637 dnl AC_C_CONST
 638 AC_FUNC_ALLOCA
 639 AC_C_INLINE
 640
 641 # VMS doesn't have unlink.
 642 AC_CHECK_FUNCS(unlink remove, break)
 643
 644 # Some systems don't have sbrk().
 645 AC_CHECK_FUNCS(sbrk)
 646
 647 # do we need the math library?
 648 case "${need_libm}" in
 649 yes)
 650   LT_LIB_M
 651   AC_SUBST(LIBM)
 652   ;;
 653 esac
 654
 655 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 656 # enough, but on some of those systems, the assert macro relies on requoting
 657 # working properly!
 658 GAS_WORKING_ASSERT
 659
 660 # On some systems, the system header files may not declare malloc, realloc,
 661 # and free.  There are places where gas needs these functions to have been
 662 # declared -- such as when taking their addresses.
 663 gas_test_headers="
 664 #ifdef HAVE_MEMORY_H
 665 #include <memory.h>
 666 #endif
 667 #ifdef HAVE_STRING_H
 668 #include <string.h>
 669 #else
 670 #ifdef HAVE_STRINGS_H
 671 #include <strings.h>
 672 #endif
 673 #endif
 674 #ifdef HAVE_STDLIB_H
 675 #include <stdlib.h>
 676 #endif
 677 #ifdef HAVE_UNISTD_H
 678 #include <unistd.h>
 679 #endif
 680 "
 681
 682 # Does errno.h declare errno, or do we have to add a separate declaration
 683 # for it?
 684 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 685 #ifdef HAVE_ERRNO_H
 686 #include <errno.h>
 687 #endif
 688 ])
 689
 690 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 691 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 692 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 693 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 694 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 695 if test $gas_cv_decl_getopt_unistd_h = yes; then
 696   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 697             [Is the prototype for getopt in <unistd.h> in the expected format?])
 698 fi
 699
 700 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 701 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 702 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 703 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 704 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 705 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 706
 707 AC_CHECK_DECLS([mempcpy])
 708 AC_CHECK_DECLS([vsnprintf])
 709
 710 BFD_BINARY_FOPEN
 711
 712 # Link in zlib if we can.  This allows us to write compressed debug sections.
 713 AM_ZLIB
 714
 715 # Support for VMS timestamps via cross compile
 716
 717 if test "$ac_cv_header_time_h" = yes; then
 718   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 719 fi
 720
 721 if test "$ac_cv_header_sys_stat_h" = yes; then
 722     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 723     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 724 fi
 725
 726
 727 dnl Required for html, pdf, install-pdf and install-html targets.
 728 AC_SUBST(datarootdir)
 729 AC_SUBST(docdir)
 730 AC_SUBST(htmldir)
 731 AC_SUBST(pdfdir)
 732
 733 dnl This must come last.
 734
 735 dnl We used to make symlinks to files in the source directory, but now
 736 dnl we just use the right name for .c files, and create .h files in
 737 dnl the build directory which include the right .h file.  Make sure
 738 dnl the old symlinks don't exist, so that a reconfigure in an existing
 739 dnl directory behaves reasonably.
 740
 741 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 742 AC_CONFIG_COMMANDS([default],
 743 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 744  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 745  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 746  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 747  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 748  if test "x$cgen_cpu_prefix" != x ; then
 749    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 750  fi],
 751 [target_cpu_type=${target_cpu_type}
 752  cgen_cpu_prefix=${cgen_cpu_prefix}
 753  obj_format=${obj_format}
 754  te_file=${te_file}])
 755
 756 AC_OUTPUT