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(2.57)
   9 AC_INIT(as.h)
  10
  11 dnl Autoconf 2.57 will find the aux dir without this.  However, unless
  12 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
  13 dnl gas/ instead of gas/../.
  14 AC_CONFIG_AUX_DIR(..)
  15 AC_CANONICAL_SYSTEM
  16 AC_ISC_POSIX
  17
  18 changequote(,)dnl
  19 BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[         ]*\([^  ]*\)[   ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
  20 changequote([,])dnl
  21 AM_INIT_AUTOMAKE(gas, ${BFD_VERSION})
  22
  23 AM_PROG_LIBTOOL
  24
  25 AC_ARG_ENABLE(targets,
  26 [  --enable-targets        alternative target configurations besides the primary],
  27 [case "${enableval}" in
  28   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
  29             ;;
  30   no)       enable_targets= ;;
  31   *)        enable_targets=$enableval ;;
  32 esac])dnl
  33 AC_ARG_ENABLE(commonbfdlib,
  34 [  --enable-commonbfdlib   build shared BFD/opcodes/libiberty library],
  35 [case "${enableval}" in
  36   yes) commonbfdlib=true ;;
  37   no)  commonbfdlib=false ;;
  38   *)   AC_MSG_ERROR([bad value ${enableval} for BFD commonbfdlib option]) ;;
  39 esac])dnl
  40
  41 using_cgen=no
  42
  43 AM_BINUTILS_WARNINGS
  44
  45 # Generate a header file
  46 AM_CONFIG_HEADER(config.h:config.in)
  47
  48 # If we are on a DOS filesystem, we must use gdb.ini rather than
  49 # .gdbinit.
  50 case "${host}" in
  51   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
  52     GDBINIT="gdb.ini"
  53     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
  54     ;;
  55   *)
  56     GDBINIT=".gdbinit"
  57     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
  58     ;;
  59 esac
  60 AC_SUBST(GDBINIT)
  61
  62 #We need this for the host.  BOUT header is in host order.
  63 AC_C_BIGENDIAN
  64
  65 te_file=generic
  66
  67 # Makefile target for installing gas in $(tooldir)/bin.
  68 install_tooldir=install-exec-tooldir
  69
  70 canon_targets=""
  71 all_targets=no
  72 if test -n "$enable_targets" ; then
  73   for t in `echo $enable_targets | sed 's/,/ /g'`; do
  74     if test $t = "all"; then
  75       all_targets=yes
  76       continue
  77     fi
  78     result=`$ac_config_sub $t 2>/dev/null`
  79     if test -n "$result" ; then
  80       canon_targets="$canon_targets $result"
  81 #    else
  82 #      # Permit "all", etc.  We don't support it yet though.
  83 #      canon_targets="$canon_targets $t"
  84     fi
  85   done
  86   GAS_UNIQ(canon_targets)
  87 fi
  88
  89 emulations=""
  90
  91 for this_target in $target $canon_targets ; do
  92
  93     targ=${this_target}
  94     . ${srcdir}/configure.tgt
  95
  96     case ${target_cpu} in
  97       crisv32)
  98         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
  99                            [Default CRIS architecture.])
 100         ;;
 101     esac
 102
 103     if test ${this_target} = $target ; then
 104       target_cpu_type=${cpu_type}
 105     elif test ${target_cpu_type} != ${cpu_type} ; then
 106       continue
 107     fi
 108
 109     generic_target=${cpu_type}-${target_vendor}-${target_os}
 110     case ${generic_target} in
 111       i386-*-sco3.2v5*)
 112         if test ${this_target} = $target; then
 113           AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
 114         fi
 115         ;;
 116
 117       i386-*-msdosdjgpp* \
 118       | i386-*-go32* \
 119       | i386-go32-rtems*)
 120         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 121         ;;
 122
 123       i860-*-*)
 124         AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
 125         ;;
 126
 127       mips-sony-bsd*)
 128         ;;
 129       mips-*-bsd*)
 130         AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.)
 131         ;;
 132
 133       ppc-*-aix5.*)
 134         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 135                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 136         ;;
 137       ppc-*-linux-*)
 138         case "$endian" in
 139           big)  ;;
 140           *)    AC_MSG_ERROR(GNU/Linux must be configured big endian) ;;
 141         esac
 142         ;;
 143       ppc-*-solaris*)
 144         if test ${this_target} = $target; then
 145           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 146                     [Define if default target is PowerPC Solaris.])
 147         fi
 148         if test x${endian} = xbig; then
 149           AC_MSG_ERROR(Solaris must be configured little endian)
 150         fi
 151         ;;
 152
 153       sh*-*-symbianelf*)
 154         AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
 155         ;;
 156     esac
 157
 158     if test ${this_target} = $target ; then
 159       endian_def=
 160       if test x${endian} = xbig; then
 161         endian_def=1
 162       elif test x${endian} = xlittle; then
 163         endian_def=0
 164       fi
 165       if test x${endian_def} != x; then
 166         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 167                            [Define as 1 if big endian.])
 168       fi
 169     fi
 170
 171 # Other random stuff.
 172
 173     case ${cpu_type} in
 174       mips)
 175         # Set mips_cpu to the name of the default CPU.
 176         case ${target_cpu} in
 177           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 178             mips_cpu=from-abi
 179             ;;
 180           mipsisa32 | mipsisa32el)
 181             mips_cpu=mips32
 182             ;;
 183           mipsisa32r2 | mipsisa32r2el)
 184             mips_cpu=mips32r2
 185             ;;
 186           mipsisa64 | mipsisa64el)
 187             mips_cpu=mips64
 188             ;;
 189           mipsisa64r2 | mipsisa64r2el)
 190             mips_cpu=mips64r2
 191             ;;
 192           mipstx39 | mipstx39el)
 193             mips_cpu=r3900
 194             ;;
 195           mips64vr | mips64vrel)
 196             mips_cpu=vr4100
 197             ;;
 198           mipsisa32r2* | mipsisa64r2*)
 199 changequote(,)dnl
 200             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 201 changequote([,])dnl
 202             ;;
 203           mips64* | mipsisa64* | mipsisa32*)
 204 changequote(,)dnl
 205             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 206 changequote([,])dnl
 207             ;;
 208           *)
 209             AC_ERROR($target_cpu isn't a supported MIPS CPU name)
 210             ;;
 211         esac
 212         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 213         # binaries.  It's a GNU extension that some OSes don't understand.
 214         # The value only matters on ELF targets.
 215         case ${target} in
 216           *-*-irix*)
 217             use_e_mips_abi_o32=0
 218             ;;
 219           *)
 220             use_e_mips_abi_o32=1
 221             ;;
 222         esac
 223         # Decide whether to generate 32-bit or 64-bit code by default.
 224         # Used to resolve -march=from-abi when an embedded ABI is selected.
 225         case ${target} in
 226           mips64*-*-* | mipsisa64*-*-*)
 227             mips_default_64bit=1
 228             ;;
 229           *)
 230             mips_default_64bit=0
 231             ;;
 232         esac
 233         # Decide which ABI to target by default.
 234         case ${target} in
 235           mips64*-linux* | mips-sgi-irix6*)
 236             mips_default_abi=N32_ABI
 237             ;;
 238           mips*-linux*)
 239             mips_default_abi=O32_ABI
 240             ;;
 241           mips64*-openbsd*)
 242             mips_default_abi=N64_ABI
 243             ;;
 244           *)
 245             mips_default_abi=NO_ABI
 246             ;;
 247         esac
 248         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 249                            [Default CPU for MIPS targets. ])
 250         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 251                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 252         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 253                            [Generate 64-bit code by default on MIPS targets. ])
 254         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 255                            [Choose a default ABI for MIPS targets. ])
 256         ;;
 257     esac
 258
 259     # Do we need the opcodes library?
 260     case ${cpu_type} in
 261       vax | i386 | tic30)
 262         ;;
 263
 264       *)
 265         need_opcodes=yes
 266
 267         case "${enable_shared}" in
 268         yes) shared_opcodes=true ;;
 269         *opcodes*) shared_opcodes=true ;;
 270         *) shared_opcodes=false ;;
 271         esac
 272         ;;
 273     esac
 274
 275     # Any other special object files needed ?
 276     case ${cpu_type} in
 277
 278       bfin)
 279         echo ${extra_objects} | grep -s "bfin-parse.o"
 280         if test $? -ne 0 ; then
 281           extra_objects="$extra_objects bfin-parse.o"
 282         fi
 283
 284         echo ${extra_objects} | grep -s "bfin-lex.o"
 285         if test $? -ne 0 ; then
 286           extra_objects="$extra_objects bfin-lex.o"
 287         fi
 288         ;;
 289
 290       fr30 | ip2k | iq2000 | m32r | openrisc)
 291         using_cgen=yes
 292         ;;
 293
 294       m32c)
 295         using_cgen=yes
 296         ;;
 297       frv)
 298         using_cgen=yes
 299         ;;
 300       m68k)
 301         case ${extra_objects} in
 302         *m68k-parse.o*) ;;
 303         *) extra_objects="$extra_objects m68k-parse.o" ;;
 304         esac
 305         ;;
 306
 307       mips)
 308         echo ${extra_objects} | grep -s "itbl-parse.o"
 309         if test $? -ne 0 ; then
 310           extra_objects="$extra_objects itbl-parse.o"
 311         fi
 312
 313         echo ${extra_objects} | grep -s "itbl-lex.o"
 314         if test $? -ne 0 ; then
 315           extra_objects="$extra_objects itbl-lex.o"
 316         fi
 317
 318         echo ${extra_objects} | grep -s "itbl-ops.o"
 319         if test $? -ne 0 ; then
 320           extra_objects="$extra_objects itbl-ops.o"
 321         fi
 322         ;;
 323
 324       mt)
 325         using_cgen=yes
 326         ;;
 327
 328       i386 | s390 | sparc)
 329         if test $this_target = $target ; then
 330           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 331         fi
 332         ;;
 333
 334       xstormy16)
 335         using_cgen=yes
 336         ;;
 337
 338       xc16x)
 339         using_cgen=yes
 340         ;;
 341
 342       xtensa)
 343         echo ${extra_objects} | grep -s "xtensa-relax.o"
 344         if test $? -ne 0 ; then
 345           extra_objects="$extra_objects xtensa-relax.o"
 346         fi
 347         ;;
 348
 349       *)
 350         ;;
 351     esac
 352
 353     if test $using_cgen = yes ; then
 354         case "x${extra_objects}" in
 355         *cgen.o*) ;;
 356         *) extra_objects="$extra_objects cgen.o" ;;
 357         esac
 358     fi
 359
 360 # See if we really can support this configuration with the emulation code.
 361
 362     if test $this_target = $target ; then
 363       obj_format=$fmt
 364       te_file=$em
 365     fi
 366
 367 # From target name and format, produce a list of supported emulations.
 368
 369     case ${generic_target}-${fmt} in
 370       mips-*-irix5*-*)  emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 371       mips*-*-linux*-*) case "$endian" in
 372                         big)    emulation="mipsbelf mipslelf mipself" ;;
 373                         *)      emulation="mipslelf mipsbelf mipself" ;;
 374                         esac ;;
 375       mips-*-lnews*-ecoff) ;;
 376       mips-*-*-ecoff)   case "$endian" in
 377                         big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
 378                         *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
 379                         esac ;;
 380       mips-*-*-elf)     case "$endian" in
 381                         big)    emulation="mipsbelf mipslelf mipself" ;;
 382                         *)      emulation="mipslelf mipsbelf mipself" ;;
 383                         esac ;;
 384       mips-*-sysv4*MP*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
 385       # i386-pc-pe-coff != i386-pc-coff.
 386       i386-*-pe-coff)   ;;
 387       # Uncommenting the next line will turn on support for i386 AOUT
 388       # for the default linux configuration
 389       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 390       #
 391       i386-*-aout)      emulation="i386aout" ;;
 392       i386-*-coff)      emulation="i386coff" ;;
 393       i386-*-elf)       emulation="i386elf" ;;
 394
 395       # Always all formats.  The first stated emulation becomes the default.
 396       cris-*-*aout*)    emulation="crisaout criself" ;;
 397       cris-*-*)         emulation="criself crisaout" ;;
 398     esac
 399
 400     emulations="$emulations $emulation"
 401
 402 done
 403
 404 # Turn on all targets if possible
 405 if test ${all_targets} = "yes"; then
 406   case ${target_cpu_type} in
 407   i386)
 408     case ${obj_format} in
 409     aout)
 410       emulations="$emulations i386coff i386elf"
 411       ;;
 412     coff)
 413       emulations="$emulations i386aout i386elf"
 414     ;;
 415     elf)
 416       emulations="$emulations i386aout i386coff"
 417       ;;
 418     esac
 419   ;;
 420   x86_64)
 421     case ${obj_format} in
 422     aout)
 423       emulations="$emulations i386coff i386elf"
 424       ;;
 425     coff)
 426       emulations="$emulations i386aout i386elf"
 427     ;;
 428     elf)
 429       emulations="$emulations i386aout i386coff"
 430       ;;
 431     esac
 432   ;;
 433   esac
 434 fi
 435
 436 # Assign floating point type.  Most processors with FP support
 437 # IEEE FP.  On those that don't support FP at all, usually IEEE
 438 # is emulated.
 439 case ${target_cpu} in
 440   vax | pdp11 ) atof=vax ;;
 441   *)            atof=ieee ;;
 442 esac
 443
 444 case "${obj_format}" in
 445   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 446 esac
 447
 448 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 449 cgen_cpu_prefix=""
 450 if test $using_cgen = yes ; then
 451   case ${target_cpu} in
 452     *) cgen_cpu_prefix=${target_cpu} ;;
 453   esac
 454   AC_SUBST(cgen_cpu_prefix)
 455   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 456 fi
 457
 458 dnl
 459 dnl Make sure the desired support files exist.
 460 dnl
 461
 462 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 463   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 464 fi
 465
 466 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 467   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 468 fi
 469
 470 # Some COFF configurations want these random other flags set.
 471 case ${obj_format} in
 472   coff)
 473     case ${target_cpu_type} in
 474       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 475       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 476       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 477       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 478     esac
 479     ;;
 480 esac
 481
 482 # Getting this done right is going to be a bitch.  Each configuration specified
 483 # with --enable-targets=... should be checked for environment, format, cpu
 484 # setting.
 485 #
 486 # For each configuration, the necessary object file support code must be linked
 487 # in.  This might be only one, it might be up to four.  The necessary emulation
 488 # code needs to be provided, too.
 489 #
 490 # And then there's "--enable-targets=all"....
 491 #
 492 # For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
 493
 494 formats="${obj_format}"
 495 emfiles=""
 496 EMULATIONS=""
 497 GAS_UNIQ(emulations)
 498 for em in . $emulations ; do
 499   case $em in
 500     .)  continue ;;
 501     mipsbelf | mipslelf | mipself)
 502         fmt=elf   file=mipself ;;
 503     mipsbecoff | mipslecoff | mipsecoff)
 504         fmt=ecoff file=mipsecoff ;;
 505     *coff)
 506         fmt=coff  file=$em ;;
 507     *aout)
 508         fmt=aout file=$em ;;
 509     *elf)
 510         fmt=elf file=$em ;;
 511   esac
 512   formats="$formats $fmt"
 513   emfiles="$emfiles e-$file.o"
 514   EMULATIONS="$EMULATIONS &$em,"
 515 done
 516 GAS_UNIQ(formats)
 517 GAS_UNIQ(emfiles)
 518 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 519   for fmt in $formats ; do
 520     case $fmt in
 521       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 522       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 523       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 524       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 525       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 526       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 527       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 528     esac
 529     extra_objects="$extra_objects obj-$fmt.o"
 530   done
 531   obj_format=multi
 532 fi
 533 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 534   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 535   # e-mips* has more than one emulation per file, e-i386* has just one at the
 536   # moment.  If only one emulation is specified, then don't define
 537   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 538   case "${obj_format}${emfiles}" in
 539     multi* | *mips*)
 540       extra_objects="$extra_objects $emfiles"
 541       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 542   esac
 543 fi
 544 AC_SUBST(extra_objects)
 545 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 546 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 547                    [Default emulation.])
 548
 549 reject_dev_configs=yes
 550
 551 case ${reject_dev_configs}-${dev} in
 552   yes-yes) # Oops.
 553     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 554     ;;
 555 esac
 556
 557 AC_SUBST(target_cpu_type)
 558 AC_SUBST(obj_format)
 559 AC_SUBST(te_file)
 560 AC_SUBST(install_tooldir)
 561 AC_SUBST(atof)
 562 dnl AC_SUBST(emulation)
 563
 564 # do we need the opcodes library?
 565 case "${need_opcodes}" in
 566 yes)
 567   OPCODES_LIB=../opcodes/libopcodes.la
 568   ;;
 569 esac
 570
 571 AC_SUBST(OPCODES_LIB)
 572
 573 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 574 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 575 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 576 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 577 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 578
 579 AC_PROG_CC
 580
 581 AC_PROG_YACC
 582 AM_PROG_LEX
 583
 584 ALL_LINGUAS="fr tr es rw"
 585 ZW_GNU_GETTEXT_SISTER_DIR
 586 AM_PO_SUBDIRS
 587
 588 AM_MAINTAINER_MODE
 589 AC_EXEEXT
 590
 591 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
 592
 593 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 594 # people who are not cross-compiling but are compiling cross-assemblers.
 595 AC_MSG_CHECKING(whether compiling a cross-assembler)
 596 if test "${host}" = "${target}"; then
 597   cross_gas=no
 598 else
 599   cross_gas=yes
 600   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 601 fi
 602 AC_MSG_RESULT($cross_gas)
 603
 604 dnl ansidecl.h will deal with const
 605 dnl AC_CONST
 606 AC_FUNC_ALLOCA
 607 AC_C_INLINE
 608
 609 # VMS doesn't have unlink.
 610 AC_CHECK_FUNCS(unlink remove, break)
 611
 612 # Some systems don't have sbrk().
 613 AC_CHECK_FUNCS(sbrk)
 614
 615 # do we need the math library?
 616 case "${need_libm}" in
 617 yes)
 618   AC_CHECK_LIBM
 619   AC_SUBST(LIBM)
 620   ;;
 621 esac
 622
 623 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 624 # enough, but on some of those systems, the assert macro relies on requoting
 625 # working properly!
 626 GAS_WORKING_ASSERT
 627
 628 # On some systems, the system header files may not declare malloc, realloc,
 629 # and free.  There are places where gas needs these functions to have been
 630 # declared -- such as when taking their addresses.
 631 gas_test_headers="
 632 #ifdef HAVE_MEMORY_H
 633 #include <memory.h>
 634 #endif
 635 #ifdef HAVE_STRING_H
 636 #include <string.h>
 637 #else
 638 #ifdef HAVE_STRINGS_H
 639 #include <strings.h>
 640 #endif
 641 #endif
 642 #ifdef HAVE_STDLIB_H
 643 #include <stdlib.h>
 644 #endif
 645 #ifdef HAVE_UNISTD_H
 646 #include <unistd.h>
 647 #endif
 648 "
 649
 650 # Does errno.h declare errno, or do we have to add a separate declaration
 651 # for it?
 652 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 653 #ifdef HAVE_ERRNO_H
 654 #include <errno.h>
 655 #endif
 656 ])
 657
 658 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 659 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 660 [AC_TRY_COMPILE([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);],
 661 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 662 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 663 if test $gas_cv_decl_getopt_unistd_h = yes; then
 664   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 665             [Is the prototype for getopt in <unistd.h> in the expected format?])
 666 fi
 667
 668 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 669 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 670 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 671 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 672 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 673 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 674
 675 AC_CHECK_DECLS([vsnprintf])
 676
 677 BFD_BINARY_FOPEN
 678
 679 dnl Required for html and install-html targets.
 680 AC_SUBST(datarootdir)
 681 AC_SUBST(docdir)
 682 AC_SUBST(htmldir)
 683
 684 dnl This must come last.
 685
 686 dnl We used to make symlinks to files in the source directory, but now
 687 dnl we just use the right name for .c files, and create .h files in
 688 dnl the build directory which include the right .h file.  Make sure
 689 dnl the old symlinks don't exist, so that a reconfigure in an existing
 690 dnl directory behaves reasonably.
 691
 692 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 693 AC_CONFIG_COMMANDS([default],
 694 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 695  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 696  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 697  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 698  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 699  if test "x$cgen_cpu_prefix" != x ; then
 700    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 701  fi],
 702 [target_cpu_type=${target_cpu_type}
 703  cgen_cpu_prefix=${cgen_cpu_prefix}
 704  obj_format=${obj_format}
 705  te_file=${te_file}])
 706
 707 AC_OUTPUT