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   Copyright 2012, 2013 Free Software Foundation
   7 dnl
   8 dnl This file is free software; you can redistribute it and/or modify
   9 dnl it under the terms of the GNU General Public License as published by
  10 dnl the Free Software Foundation; either version 3 of the License, or
  11 dnl (at your option) any later version.
  12 dnl
  13 dnl This program is distributed in the hope that it will be useful,
  14 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 dnl GNU General Public License for more details.
  17 dnl
  18 dnl You should have received a copy of the GNU General Public License
  19 dnl along with this program; see the file COPYING3.  If not see
  20 dnl <http://www.gnu.org/licenses/>.
  21 dnl
  22 dnl v2.5 needed for --bindir et al
  23 AC_PREREQ(2.59)
  24 AC_INIT
  25 AC_CONFIG_SRCDIR(as.h)
  26
  27 dnl Autoconf 2.57 will find the aux dir without this.  However, unless
  28 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
  29 dnl gas/ instead of gas/../.
  30 AC_CONFIG_AUX_DIR(..)
  31 AC_CANONICAL_TARGET
  32 AC_ISC_POSIX
  33
  34 changequote(,)dnl
  35 BFD_VERSION=`${srcdir}/../bfd/configure --version | sed -n -e '1s,.* ,,p'`
  36 changequote([,])dnl
  37 AM_INIT_AUTOMAKE(gas, ${BFD_VERSION})
  38
  39 AC_PROG_CC
  40 AC_GNU_SOURCE
  41 AC_USE_SYSTEM_EXTENSIONS
  42 ACX_LARGEFILE
  43
  44 LT_INIT
  45
  46 AC_ARG_ENABLE(targets,
  47 [  --enable-targets        alternative target configurations besides the primary],
  48 [case "${enableval}" in
  49   yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
  50             ;;
  51   no)       enable_targets= ;;
  52   *)        enable_targets=$enableval ;;
  53 esac])dnl
  54
  55 ac_checking=yes
  56 if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
  57   ac_checking=
  58 fi
  59 AC_ARG_ENABLE(checking,
  60 [  --enable-checking       enable run-time checks],
  61 [case "${enableval}" in
  62   no|none)  ac_checking= ;;
  63   *)        ac_checking=yes ;;
  64 esac])dnl
  65 if test x$ac_checking != x ; then
  66   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
  67 fi
  68
  69 using_cgen=no
  70
  71 AM_BINUTILS_WARNINGS
  72
  73 # Generate a header file
  74 AC_CONFIG_HEADERS(config.h:config.in)
  75
  76 # PR 14072
  77 AH_VERBATIM([00_CONFIG_H_CHECK],
  78 [/* Check that config.h is #included before system headers
  79    (this works only for glibc, but that should be enough).  */
  80 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
  81 #  error config.h must be #included before system headers
  82 #endif
  83 #define __CONFIG_H__ 1])
  84
  85 # If we are on a DOS filesystem, we must use gdb.ini rather than
  86 # .gdbinit.
  87 case "${host}" in
  88   *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
  89     GDBINIT="gdb.ini"
  90     AC_CONFIG_FILES(gdb.ini:gdbinit.in)
  91     ;;
  92   *)
  93     GDBINIT=".gdbinit"
  94     AC_CONFIG_FILES(.gdbinit:gdbinit.in)
  95     ;;
  96 esac
  97 AC_SUBST(GDBINIT)
  98
  99 #We need this for the host.  BOUT header is in host order.
 100 AC_C_BIGENDIAN
 101
 102 te_file=generic
 103
 104 # Makefile target for installing gas in $(tooldir)/bin.
 105 install_tooldir=install-exec-tooldir
 106
 107 canon_targets=""
 108 all_targets=no
 109 if test -n "$enable_targets" ; then
 110   for t in `echo $enable_targets | sed 's/,/ /g'`; do
 111     if test $t = "all"; then
 112       all_targets=yes
 113       continue
 114     fi
 115     result=`$ac_config_sub $t 2>/dev/null`
 116     if test -n "$result" ; then
 117       canon_targets="$canon_targets $result"
 118 #    else
 119 #      # Permit "all", etc.  We don't support it yet though.
 120 #      canon_targets="$canon_targets $t"
 121     fi
 122   done
 123   GAS_UNIQ(canon_targets)
 124 fi
 125
 126 emulations=""
 127
 128 for this_target in $target $canon_targets ; do
 129
 130     targ=${this_target}
 131     . ${srcdir}/configure.tgt
 132
 133     case ${target_cpu} in
 134       crisv32)
 135         AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
 136                            [Default CRIS architecture.])
 137         ;;
 138     esac
 139
 140     if test ${this_target} = $target ; then
 141       target_cpu_type=${cpu_type}
 142     elif test ${target_cpu_type} != ${cpu_type} ; then
 143       continue
 144     fi
 145
 146     generic_target=${cpu_type}-${target_vendor}-${target_os}
 147     case ${generic_target} in
 148       i386-*-sco3.2v5*)
 149         if test ${this_target} = $target; then
 150           AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
 151         fi
 152         ;;
 153
 154       i386-*-msdosdjgpp* \
 155       | i386-*-go32* \
 156       | i386-go32-rtems*)
 157         AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
 158         ;;
 159
 160       i860-*-*)
 161         AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
 162         ;;
 163
 164       microblaze*)
 165         ;;
 166
 167 changequote(,)dnl
 168       ppc-*-aix[5-9].*)
 169 changequote([,])dnl
 170         AC_DEFINE(AIX_WEAK_SUPPORT, 1,
 171                   [Define if using AIX 5.2 value for C_WEAKEXT.])
 172         ;;
 173       ppc-*-solaris*)
 174         if test ${this_target} = $target; then
 175           AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
 176                     [Define if default target is PowerPC Solaris.])
 177         fi
 178         if test x${endian} = xbig; then
 179           AC_MSG_ERROR(Solaris must be configured little endian)
 180         fi
 181         ;;
 182
 183       sh*-*-symbianelf*)
 184         AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
 185         ;;
 186     esac
 187
 188     if test ${this_target} = $target ; then
 189       endian_def=
 190       if test x${endian} = xbig; then
 191         endian_def=1
 192       elif test x${endian} = xlittle; then
 193         endian_def=0
 194       fi
 195       if test x${endian_def} != x; then
 196         AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
 197                            [Define as 1 if big endian.])
 198       fi
 199     fi
 200
 201 # Other random stuff.
 202
 203     case ${cpu_type} in
 204       mips)
 205         # Set mips_cpu to the name of the default CPU.
 206         case ${target_cpu} in
 207           mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
 208             mips_cpu=from-abi
 209             ;;
 210           mipsisa32 | mipsisa32el)
 211             mips_cpu=mips32
 212             ;;
 213           mipsisa32r2 | mipsisa32r2el)
 214             mips_cpu=mips32r2
 215             ;;
 216           mipsisa64 | mipsisa64el)
 217             mips_cpu=mips64
 218             ;;
 219           mipsisa64r2 | mipsisa64r2el)
 220             mips_cpu=mips64r2
 221             ;;
 222           mipstx39 | mipstx39el)
 223             mips_cpu=r3900
 224             ;;
 225           mips64vr | mips64vrel)
 226             mips_cpu=vr4100
 227             ;;
 228           mipsisa32r2* | mipsisa64r2*)
 229 changequote(,)dnl
 230             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
 231 changequote([,])dnl
 232             ;;
 233           mips64* | mipsisa64* | mipsisa32*)
 234 changequote(,)dnl
 235             mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
 236 changequote([,])dnl
 237             ;;
 238           mips*)
 239 changequote(,)dnl
 240             mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
 241 changequote([,])dnl
 242             ;;
 243           *)
 244             AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
 245             ;;
 246         esac
 247         # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
 248         # binaries.  It's a GNU extension that some OSes don't understand.
 249         case ${target} in
 250           *-*-irix*)
 251             use_e_mips_abi_o32=0
 252             ;;
 253           *)
 254             use_e_mips_abi_o32=1
 255             ;;
 256         esac
 257         # Decide whether to generate 32-bit or 64-bit code by default.
 258         # Used to resolve -march=from-abi when an embedded ABI is selected.
 259         case ${target} in
 260           mips64*-*-* | mipsisa64*-*-*)
 261             mips_default_64bit=1
 262             ;;
 263           *)
 264             mips_default_64bit=0
 265             ;;
 266         esac
 267         # Decide which ABI to target by default.
 268         case ${target} in
 269           mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* | mips64*-kfreebsd*-gnu)
 270             mips_default_abi=N32_ABI
 271             ;;
 272           mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
 273             mips_default_abi=O32_ABI
 274             ;;
 275           mips64*-openbsd*)
 276             mips_default_abi=N64_ABI
 277             ;;
 278           *)
 279             mips_default_abi=NO_ABI
 280             ;;
 281         esac
 282         AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
 283                            [Default CPU for MIPS targets. ])
 284         AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
 285                            [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
 286         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
 287                            [Generate 64-bit code by default on MIPS targets. ])
 288         AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
 289                            [Choose a default ABI for MIPS targets. ])
 290         ;;
 291     esac
 292
 293     # Do we need the opcodes library?
 294     case ${cpu_type} in
 295       vax | tic30)
 296         ;;
 297
 298       *)
 299         need_opcodes=yes
 300
 301         case "${enable_shared}" in
 302         yes) shared_opcodes=true ;;
 303         *opcodes*) shared_opcodes=true ;;
 304         *) shared_opcodes=false ;;
 305         esac
 306         ;;
 307     esac
 308
 309     # Any other special object files needed ?
 310     case ${cpu_type} in
 311
 312       bfin)
 313         echo ${extra_objects} | grep -s "bfin-parse.o"
 314         if test $? -ne 0 ; then
 315           extra_objects="$extra_objects bfin-parse.o"
 316         fi
 317
 318         echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
 319         if test $? -ne 0 ; then
 320           extra_objects="$extra_objects bfin-lex-wrapper.o"
 321         fi
 322         ;;
 323
 324       epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | openrisc)
 325         using_cgen=yes
 326         ;;
 327
 328       m32c)
 329         using_cgen=yes
 330         ;;
 331       frv)
 332         using_cgen=yes
 333         ;;
 334       m68k)
 335         case ${extra_objects} in
 336         *m68k-parse.o*) ;;
 337         *) extra_objects="$extra_objects m68k-parse.o" ;;
 338         esac
 339         ;;
 340
 341       mep)
 342         using_cgen=yes
 343         ;;
 344
 345       mips)
 346         echo ${extra_objects} | grep -s "itbl-parse.o"
 347         if test $? -ne 0 ; then
 348           extra_objects="$extra_objects itbl-parse.o"
 349         fi
 350
 351         echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
 352         if test $? -ne 0 ; then
 353           extra_objects="$extra_objects itbl-lex-wrapper.o"
 354         fi
 355
 356         echo ${extra_objects} | grep -s "itbl-ops.o"
 357         if test $? -ne 0 ; then
 358           extra_objects="$extra_objects itbl-ops.o"
 359         fi
 360         ;;
 361
 362       mt)
 363         using_cgen=yes
 364         ;;
 365
 366       i386 | s390 | sparc)
 367         if test $this_target = $target ; then
 368           AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
 369         fi
 370         ;;
 371
 372       rl78)
 373         echo ${extra_objects} | grep -s "rl78-parse.o"
 374         if test $? -ne 0 ; then
 375           extra_objects="$extra_objects rl78-parse.o"
 376         fi
 377         ;;
 378
 379       rx)
 380         echo ${extra_objects} | grep -s "rx-parse.o"
 381         if test $? -ne 0 ; then
 382           extra_objects="$extra_objects rx-parse.o"
 383         fi
 384         ;;
 385
 386       xstormy16)
 387         using_cgen=yes
 388         ;;
 389
 390       xc16x)
 391         using_cgen=yes
 392         ;;
 393
 394       xtensa)
 395         echo ${extra_objects} | grep -s "xtensa-relax.o"
 396         if test $? -ne 0 ; then
 397           extra_objects="$extra_objects xtensa-relax.o"
 398         fi
 399         ;;
 400
 401       *)
 402         ;;
 403     esac
 404
 405     if test $using_cgen = yes ; then
 406         case "x${extra_objects}" in
 407         *cgen.o*) ;;
 408         *) extra_objects="$extra_objects cgen.o" ;;
 409         esac
 410     fi
 411
 412 # See if we really can support this configuration with the emulation code.
 413
 414     if test $this_target = $target ; then
 415       obj_format=$fmt
 416       te_file=$em
 417     fi
 418
 419    case ${te_file} in
 420       vms) extra_objects="$extra_objects te-vms.o" ;;
 421    esac
 422
 423 # From target name and format, produce a list of supported emulations.
 424
 425     case ${generic_target}-${fmt} in
 426       mips-*-*-*)       case "$endian" in
 427                         big)    emulation="mipsbelf mipslelf mipself" ;;
 428                         *)      emulation="mipslelf mipsbelf mipself" ;;
 429                         esac ;;
 430       # i386-pc-pe-coff != i386-pc-coff.
 431       i386-*-pe-coff)   ;;
 432       # Uncommenting the next line will turn on support for i386 AOUT
 433       # for the default linux configuration
 434       # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
 435       #
 436       i386-*-aout)      emulation="i386aout" ;;
 437       i386-*-coff)      emulation="i386coff" ;;
 438       i386-*-elf)       emulation="i386elf" ;;
 439
 440       # Always all formats.  The first stated emulation becomes the default.
 441       cris-*-*aout*)    emulation="crisaout criself" ;;
 442       cris-*-*)         emulation="criself crisaout" ;;
 443     esac
 444
 445     emulations="$emulations $emulation"
 446
 447 done
 448
 449 # Turn on all targets if possible
 450 if test ${all_targets} = "yes"; then
 451   case ${target_cpu_type} in
 452   i386)
 453     case ${obj_format} in
 454     aout)
 455       emulations="$emulations i386coff i386elf"
 456       ;;
 457     coff)
 458       emulations="$emulations i386aout i386elf"
 459     ;;
 460     elf)
 461       emulations="$emulations i386aout i386coff"
 462       ;;
 463     esac
 464   ;;
 465   x86_64)
 466     case ${obj_format} in
 467     aout)
 468       emulations="$emulations i386coff i386elf"
 469       ;;
 470     coff)
 471       emulations="$emulations i386aout i386elf"
 472     ;;
 473     elf)
 474       emulations="$emulations i386aout i386coff"
 475       ;;
 476     esac
 477   ;;
 478   esac
 479 fi
 480
 481 # PE code has way too many macros tweaking behaviour
 482 case ${te_file} in
 483   pe*) emulations="" ;;
 484 esac
 485
 486 # Assign floating point type.  Most processors with FP support
 487 # IEEE FP.  On those that don't support FP at all, usually IEEE
 488 # is emulated.
 489 case ${target_cpu} in
 490   vax | pdp11 ) atof=vax ;;
 491   *)            atof=ieee ;;
 492 esac
 493
 494 case "${obj_format}" in
 495   "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 496 esac
 497
 498 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
 499 cgen_cpu_prefix=""
 500 if test $using_cgen = yes ; then
 501   case ${target_cpu} in
 502     *) cgen_cpu_prefix=${target_cpu} ;;
 503   esac
 504   AC_SUBST(cgen_cpu_prefix)
 505   AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
 506 fi
 507
 508 dnl
 509 dnl Make sure the desired support files exist.
 510 dnl
 511
 512 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
 513   AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 514 fi
 515
 516 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
 517   AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
 518 fi
 519
 520 # Some COFF configurations want these random other flags set.
 521 case ${obj_format} in
 522   coff)
 523     case ${target_cpu_type} in
 524       i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 525       m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
 526       m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
 527       x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
 528     esac
 529     ;;
 530 esac
 531
 532 # Getting this done right is going to be a bitch.  Each configuration specified
 533 # with --enable-targets=... should be checked for environment, format, cpu
 534 # setting.
 535 #
 536 # For each configuration, the necessary object file support code must be linked
 537 # in.  This might be only one, it might be up to four.  The necessary emulation
 538 # code needs to be provided, too.
 539 #
 540 # And then there's "--enable-targets=all"....
 541 #
 542 # For now, just always do it for MIPS ELF configurations.  Sigh.
 543
 544 formats="${obj_format}"
 545 emfiles=""
 546 EMULATIONS=""
 547 GAS_UNIQ(emulations)
 548 for em in . $emulations ; do
 549   case $em in
 550     .)  continue ;;
 551     mipsbelf | mipslelf | mipself)
 552         fmt=elf   file=mipself ;;
 553     *coff)
 554         fmt=coff  file=$em ;;
 555     *aout)
 556         fmt=aout file=$em ;;
 557     *elf)
 558         fmt=elf file=$em ;;
 559   esac
 560   formats="$formats $fmt"
 561   emfiles="$emfiles e-$file.o"
 562   EMULATIONS="$EMULATIONS &$em,"
 563 done
 564 GAS_UNIQ(formats)
 565 GAS_UNIQ(emfiles)
 566 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
 567   for fmt in $formats ; do
 568     case $fmt in
 569       aout)     AC_DEFINE(OBJ_MAYBE_AOUT, 1,    [a.out support?])   ;;
 570       bout)     AC_DEFINE(OBJ_MAYBE_BOUT, 1,    [b.out support?])   ;;
 571       coff)     AC_DEFINE(OBJ_MAYBE_COFF, 1,    [COFF support?])    ;;
 572       ecoff)    AC_DEFINE(OBJ_MAYBE_ECOFF, 1,   [ECOFF support?])   ;;
 573       elf)      AC_DEFINE(OBJ_MAYBE_ELF, 1,     [ELF support?])     ;;
 574       generic)  AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
 575       som)      AC_DEFINE(OBJ_MAYBE_SOM, 1,     [SOM support?])     ;;
 576     esac
 577     extra_objects="$extra_objects obj-$fmt.o"
 578   done
 579   obj_format=multi
 580 fi
 581 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
 582   DEFAULT_EMULATION=`set . $emulations ; echo $2`
 583   # e-mipself has more than one emulation per file, e-i386* has just one at the
 584   # moment.  If only one emulation is specified, then don't define
 585   # USE_EMULATIONS or include any of the e-files as they will only be bloat.
 586   case "${obj_format}${emfiles}" in
 587     multi* | *mipself*)
 588       extra_objects="$extra_objects $emfiles"
 589       AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
 590   esac
 591 fi
 592 AC_SUBST(extra_objects)
 593 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
 594 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
 595                    [Default emulation.])
 596
 597 reject_dev_configs=yes
 598
 599 case ${reject_dev_configs}-${dev} in
 600   yes-yes) # Oops.
 601     AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
 602     ;;
 603 esac
 604
 605 AC_SUBST(target_cpu_type)
 606 AC_SUBST(obj_format)
 607 AC_SUBST(te_file)
 608 AC_SUBST(install_tooldir)
 609 AC_SUBST(atof)
 610 dnl AC_SUBST(emulation)
 611
 612 # do we need the opcodes library?
 613 case "${need_opcodes}" in
 614 yes)
 615   OPCODES_LIB=../opcodes/libopcodes.la
 616   ;;
 617 esac
 618
 619 AC_SUBST(OPCODES_LIB)
 620
 621 AC_DEFINE_UNQUOTED(TARGET_ALIAS,        "${target_alias}", [Target alias.])
 622 AC_DEFINE_UNQUOTED(TARGET_CANONICAL,    "${target}",       [Canonical target.])
 623 AC_DEFINE_UNQUOTED(TARGET_CPU,          "${target_cpu}",   [Target CPU.])
 624 AC_DEFINE_UNQUOTED(TARGET_VENDOR,       "${target_vendor}", [Target vendor.])
 625 AC_DEFINE_UNQUOTED(TARGET_OS,           "${target_os}",    [Target OS.])
 626
 627 AC_PROG_YACC
 628 AM_PROG_LEX
 629
 630 ALL_LINGUAS="fr tr es rw id ru fi ja"
 631 ZW_GNU_GETTEXT_SISTER_DIR
 632 AM_PO_SUBDIRS
 633
 634 AM_MAINTAINER_MODE
 635 AM_CONDITIONAL(GENINSRC_NEVER, false)
 636 AC_EXEEXT
 637
 638 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
 639 ACX_HEADER_STRING
 640
 641 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
 642 # people who are not cross-compiling but are compiling cross-assemblers.
 643 AC_MSG_CHECKING(whether compiling a cross-assembler)
 644 if test "${host}" = "${target}"; then
 645   cross_gas=no
 646 else
 647   cross_gas=yes
 648   AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
 649 fi
 650 AC_MSG_RESULT($cross_gas)
 651
 652 dnl ansidecl.h will deal with const
 653 dnl AC_C_CONST
 654 AC_FUNC_ALLOCA
 655 AC_C_INLINE
 656
 657 # VMS doesn't have unlink.
 658 AC_CHECK_FUNCS(unlink remove, break)
 659 AC_CHECK_FUNCS(sbrk setlocale)
 660
 661 AM_LC_MESSAGES
 662
 663 # do we need the math library?
 664 case "${need_libm}" in
 665 yes)
 666   LT_LIB_M
 667   AC_SUBST(LIBM)
 668   ;;
 669 esac
 670
 671 # Some non-ANSI preprocessors botch requoting inside strings.  That's bad
 672 # enough, but on some of those systems, the assert macro relies on requoting
 673 # working properly!
 674 GAS_WORKING_ASSERT
 675
 676 # On some systems, the system header files may not declare malloc, realloc,
 677 # and free.  There are places where gas needs these functions to have been
 678 # declared -- such as when taking their addresses.
 679 gas_test_headers="
 680 #ifdef HAVE_MEMORY_H
 681 #include <memory.h>
 682 #endif
 683 #ifdef HAVE_STRING_H
 684 #include <string.h>
 685 #else
 686 #ifdef HAVE_STRINGS_H
 687 #include <strings.h>
 688 #endif
 689 #endif
 690 #ifdef HAVE_STDLIB_H
 691 #include <stdlib.h>
 692 #endif
 693 #ifdef HAVE_UNISTD_H
 694 #include <unistd.h>
 695 #endif
 696 "
 697
 698 # Does errno.h declare errno, or do we have to add a separate declaration
 699 # for it?
 700 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
 701 #ifdef HAVE_ERRNO_H
 702 #include <errno.h>
 703 #endif
 704 ])
 705
 706 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
 707 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
 708 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
 709 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
 710 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
 711 if test $gas_cv_decl_getopt_unistd_h = yes; then
 712   AC_DEFINE([HAVE_DECL_GETOPT], 1,
 713             [Is the prototype for getopt in <unistd.h> in the expected format?])
 714 fi
 715
 716 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
 717 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
 718 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
 719 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
 720 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
 721 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
 722
 723 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf])
 724
 725 BFD_BINARY_FOPEN
 726
 727 # Link in zlib if we can.  This allows us to write compressed debug sections.
 728 AM_ZLIB
 729
 730 # Support for VMS timestamps via cross compile
 731
 732 if test "$ac_cv_header_time_h" = yes; then
 733   GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
 734 fi
 735
 736 if test "$ac_cv_header_sys_stat_h" = yes; then
 737     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
 738     GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
 739 fi
 740
 741
 742 dnl Required for html, pdf, install-pdf and install-html targets.
 743 AC_SUBST(datarootdir)
 744 AC_SUBST(docdir)
 745 AC_SUBST(htmldir)
 746 AC_SUBST(pdfdir)
 747
 748 dnl This must come last.
 749
 750 dnl We used to make symlinks to files in the source directory, but now
 751 dnl we just use the right name for .c files, and create .h files in
 752 dnl the build directory which include the right .h file.  Make sure
 753 dnl the old symlinks don't exist, so that a reconfigure in an existing
 754 dnl directory behaves reasonably.
 755
 756 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
 757 AC_CONFIG_COMMANDS([default],
 758 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
 759  echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
 760  echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
 761  echo '#include "te-'"${te_file}"'.h"' > targ-env.h
 762  echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
 763  if test "x$cgen_cpu_prefix" != x ; then
 764    echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
 765  fi],
 766 [target_cpu_type=${target_cpu_type}
 767  cgen_cpu_prefix=${cgen_cpu_prefix}
 768  obj_format=${obj_format}
 769  te_file=${te_file}])
 770
 771 AC_OUTPUT