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, ${BFD_VERSION})
  23
  24 AC_PROG_CC
  25 AC_GNU_SOURCE
  26 AC_USE_SYSTEM_EXTENSIONS
  27 AC_SYS_LARGEFILE
  28
  29 LT_INIT
  30
  31 AC_ARG_ENABLE(targets,
  32 [  --enable-targets        alternative target configurations besides the primary],
  33 [case "${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       xstormy16)
 357         using_cgen=yes
 358         ;;
 359
 360       xc16x)
 361         using_cgen=yes
 362         ;;
 363
 364       xtensa)
 365         echo ${extra_objects} | grep -s "xtensa-relax.o"
 366         if test $? -ne 0 ; then
 367           extra_objects="$extra_objects xtensa-relax.o"
 368         fi
 369         ;;
 370
 371       *)
 372         ;;
 373     esac
 374
 375     if test $using_cgen = yes ; then
 376         case "x${extra_objects}" in
 377         *cgen.o*) ;;
 378         *) extra_objects="$extra_objects cgen.o" ;;
 379         esac
 380     fi
 381
 382 # See if we really can support this configuration with the emulation code.
 383
 384     if test $this_target = $target ; then
 385       obj_format=$fmt
 386       te_file=$em
 387     fi
 388
 389    case ${te_file} in
 390       vms) extra_objects="$extra_objects te-vms.o" ;;
 391    esac
 392
 393 # From target name and format, produce a list of supported emulations.
 394
 395     case ${generic_target}-${fmt} in
 396       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 397       mips*-*-linux*-*) case "$endian" in
 398                         big)    emulation="mipsbelf mipslelf mipself" ;;
 399                         *)      emulation="mipslelf mipsbelf mipself" ;;
 400                         esac ;;
 401       mips-*-lnews*-ecoff) ;;
 402       mips-*-*-ecoff)   case "$endian" in
 403                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 404                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 405                         esac ;;
 406       mips-*-*-elf)     case "$endian" in
 407                         big)    emulation="mipsbelf mipslelf mipself" ;;
 408                         *)      emulation="mipslelf mipsbelf mipself" ;;
 409                         esac ;;
 410       mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 411       # i386-pc-pe-coff != i386-pc-coff.
 412       i386-*-pe-coff)   ;;
 413       # Uncommenting the next line will turn on support for i386 AOUT
 414       # for the default linux configuration
 415       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 416       #
 417       i386-*-aout)      emulation="i386aout" ;;
 418       i386-*-coff)      emulation="i386coff" ;;
 419       i386-*-elf)       emulation="i386elf" ;;
 420
 421       # Always all formats.  The first stated emulation becomes the default.
 422       cris-*-*aout*)    emulation="crisaout criself" ;;
 423       cris-*-*)         emulation="criself crisaout" ;;
 424     esac
 425
 426     emulations="$emulations $emulation"
 427
 428 done
 429
 430 # Turn on all targets if possible
 431 if test ${all_targets} = "yes"; then
 432   case ${target_cpu_type} in
 433   i386)
 434     case ${obj_format} in
 435     aout)
 436       emulations="$emulations i386coff i386elf"
 437       ;;
 438     coff)
 439       emulations="$emulations i386aout i386elf"
 440     ;;
 441     elf)
 442       emulations="$emulations i386aout i386coff"
 443       ;;
 444     esac
 445   ;;
 446   x86_64)
 447     case ${obj_format} in
 448     aout)
 449       emulations="$emulations i386coff i386elf"
 450       ;;
 451     coff)
 452       emulations="$emulations i386aout i386elf"
 453     ;;
 454     elf)
 455       emulations="$emulations i386aout i386coff"
 456       ;;
 457     esac
 458   ;;
 459   esac
 460 fi
 461
 462 # Assign floating point type.  Most processors with FP support
 463 # IEEE FP.  On those that don't support FP at all, usually IEEE
 464 # is emulated.
 465 case ${target_cpu} in
 466   vax | pdp11 ) atof=vax ;;
 467   *)            atof=ieee ;;
 468 esac
 469
 470 case "${obj_format}" in
 471   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 472 esac
 473
 474 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 475 cgen_cpu_prefix=""
 476 if test $using_cgen = yes ; then
 477   case ${target_cpu} in
 478     *) cgen_cpu_prefix=${target_cpu} ;;
 479   esac
 480   AC_SUBST(cgen_cpu_prefix)
 481   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 482 fi
 483
 484 dnl
 485 dnl Make sure the desired support files exist.
 486 dnl
 487
 488 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 489   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 490 fi
 491
 492 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 493   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 494 fi
 495
 496 # Some COFF configurations want these random other flags set.
 497 case ${obj_format} in
 498   coff)
 499     case ${target_cpu_type} in
 500       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 501       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 502       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 503       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 504     esac
 505     ;;
 506 esac
 507
 508 # Getting this done right is going to be a bitch.  Each configuration specified
 509 # with --enable-targets=... should be checked for environment, format, cpu
 510 # setting.
 511 #
 512 # For each configuration, the necessary object file support code must be linked
 513 # in.  This might be only one, it might be up to four.  The necessary emulation
 514 # code needs to be provided, too.
 515 #
 516 # And then there's "--enable-targets=all"....
 517 #
 518 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 519
 520 formats="${obj_format}"
 521 emfiles=""
 522 EMULATIONS=""
 523 GAS_UNIQ(emulations)
 524 for em in . $emulations ; do
 525   case $em in
 526     .)  continue ;;
 527     mipsbelf | mipslelf | mipself)
 528         fmt=elf   file=mipself ;;
 529     mipsbecoff | mipslecoff | mipsecoff)
 530         fmt=ecoff file=mipsecoff ;;
 531     *coff)
 532         fmt=coff  file=$em ;;
 533     *aout)
 534         fmt=aout file=$em ;;
 535     *elf)
 536         fmt=elf file=$em ;;
 537   esac
 538   formats="$formats $fmt"
 539   emfiles="$emfiles e-$file.o"
 540   EMULATIONS="$EMULATIONS &$em,"
 541 done
 542 GAS_UNIQ(formats)
 543 GAS_UNIQ(emfiles)
 544 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 545   for fmt in $formats ; do
 546     case $fmt in
 547       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 548       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 549       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 550       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 551       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 552       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 553       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 554     esac
 555     extra_objects="$extra_objects obj-$fmt.o"
 556   done
 557   obj_format=multi
 558 fi
 559 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 560   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 561   # e-mips* has more than one emulation per file, e-i386* has just one at the
 562   # moment.  If only one emulation is specified, then don't define
 563   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 564   case "${obj_format}${emfiles}" in
 565     multi* | *mips*)
 566       extra_objects="$extra_objects $emfiles"
 567       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 568   esac
 569 fi
 570 AC_SUBST(extra_objects)
 571 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 572 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 573                    [Default emulation.])
 574
 575 reject_dev_configs=yes
 576
 577 case ${reject_dev_configs}-${dev} in
 578   yes-yes) # Oops.
 579     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 580     ;;
 581 esac
 582
 583 AC_SUBST(target_cpu_type)
 584 AC_SUBST(obj_format)
 585 AC_SUBST(te_file)
 586 AC_SUBST(install_tooldir)
 587 AC_SUBST(atof)
 588 dnl AC_SUBST(emulation)
 589
 590 # do we need the opcodes library?
 591 case "${need_opcodes}" in
 592 yes)
 593   OPCODES_LIB=../opcodes/libopcodes.la
 594   ;;
 595 esac
 596
 597 AC_SUBST(OPCODES_LIB)
 598
 599 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 600 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 601 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 602 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 603 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 604
 605 AC_PROG_YACC
 606 AM_PROG_LEX
 607
 608 ALL_LINGUAS="fr tr es rw id"
 609 ZW_GNU_GETTEXT_SISTER_DIR
 610 AM_PO_SUBDIRS
 611
 612 AM_MAINTAINER_MODE
 613 AM_CONDITIONAL(GENINSRC_NEVER, false)
 614 AC_EXEEXT
 615
 616 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h limits.h time.h sys/stat.h)
 617
 618 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 619 # people who are not cross-compiling but are compiling cross-assemblers.
 620 AC_MSG_CHECKING(whether compiling a cross-assembler)
 621 if test "${host}" = "${target}"; then
 622   cross_gas=no
 623 else
 624   cross_gas=yes
 625   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 626 fi
 627 AC_MSG_RESULT($cross_gas)
 628
 629 dnl ansidecl.h will deal with const
 630 dnl AC_C_CONST
 631 AC_FUNC_ALLOCA
 632 AC_C_INLINE
 633
 634 # VMS doesn't have unlink.
 635 AC_CHECK_FUNCS(unlink remove, break)
 636
 637 # Some systems don't have sbrk().
 638 AC_CHECK_FUNCS(sbrk)
 639
 640 # do we need the math library?
 641 case "${need_libm}" in
 642 yes)
 643   LT_LIB_M
 644   AC_SUBST(LIBM)
 645   ;;
 646 esac
 647
 648 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 649 # enough, but on some of those systems, the assert macro relies on requoting
 650 # working properly!
 651 GAS_WORKING_ASSERT
 652
 653 # On some systems, the system header files may not declare malloc, realloc,
 654 # and free.  There are places where gas needs these functions to have been
 655 # declared -- such as when taking their addresses.
 656 gas_test_headers="
 657 #ifdef HAVE_MEMORY_H
 658 #include <memory.h>
 659 #endif
 660 #ifdef HAVE_STRING_H
 661 #include <string.h>
 662 #else
 663 #ifdef HAVE_STRINGS_H
 664 #include <strings.h>
 665 #endif
 666 #endif
 667 #ifdef HAVE_STDLIB_H
 668 #include <stdlib.h>
 669 #endif
 670 #ifdef HAVE_UNISTD_H
 671 #include <unistd.h>
 672 #endif
 673 "
 674
 675 # Does errno.h declare errno, or do we have to add a separate declaration
 676 # for it?
 677 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 678 #ifdef HAVE_ERRNO_H
 679 #include <errno.h>
 680 #endif
 681 ])
 682
 683 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 684 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 685 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 686 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 687 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 688 if test $gas_cv_decl_getopt_unistd_h = yes; then
 689   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 690             [Is the prototype for getopt in <unistd.h> in the expected format?])
 691 fi
 692
 693 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 694 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 695 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 696 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 697 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 698 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 699
 700 AC_CHECK_DECLS([vsnprintf])
 701
 702 BFD_BINARY_FOPEN
 703
 704 # Support for VMS timestamps via cross compile
 705
 706 if test "$ac_cv_header_time_h" = yes; then
 707   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 708 fi
 709
 710 if test "$ac_cv_header_sys_stat_h" = yes; then
 711     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 712     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 713 fi
 714
 715
 716 dnl Required for html, pdf, install-pdf and install-html targets.
 717 AC_SUBST(datarootdir)
 718 AC_SUBST(docdir)
 719 AC_SUBST(htmldir)
 720 AC_SUBST(pdfdir)
 721
 722 dnl This must come last.
 723
 724 dnl We used to make symlinks to files in the source directory, but now
 725 dnl we just use the right name for .c files, and create .h files in
 726 dnl the build directory which include the right .h file.  Make sure
 727 dnl the old symlinks don't exist, so that a reconfigure in an existing
 728 dnl directory behaves reasonably.
 729
 730 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 731 AC_CONFIG_COMMANDS([default],
 732 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 733  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 734  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 735  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 736  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 737  if test "x$cgen_cpu_prefix" != x ; then
 738    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 739  fi],
 740 [target_cpu_type=${target_cpu_type}
 741  cgen_cpu_prefix=${cgen_cpu_prefix}
 742  obj_format=${obj_format}
 743  te_file=${te_file}])
 744
 745 AC_OUTPUT