gcc/aclocal.m4

   1 m4_include([../config/acx.m4])
   2 m4_include([../config/gettext-sister.m4])
   3 m4_include([../config/iconv.m4])
   4 m4_include([../config/lcmessage.m4])
   5 m4_include([../config/lib-ld.m4])
   6 m4_include([../config/lib-link.m4])
   7 m4_include([../config/lib-prefix.m4])
   8 m4_include([../config/progtest.m4])
   9
  10 dnl See whether we need a declaration for a function.
  11 dnl The result is highly dependent on the INCLUDES passed in, so make sure
  12 dnl to use a different cache variable name in this macro if it is invoked
  13 dnl in a different context somewhere else.
  14 dnl gcc_AC_CHECK_DECL(SYMBOL,
  15 dnl     [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
  16 AC_DEFUN([gcc_AC_CHECK_DECL],
  17 [AC_MSG_CHECKING([whether $1 is declared])
  18 AC_CACHE_VAL(gcc_cv_have_decl_$1,
  19 [AC_TRY_COMPILE([$4],
  20 [#ifndef $1
  21 char *(*pfn) = (char *(*)) $1 ;
  22 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
  23 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
  24   AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
  25 else
  26   AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
  27 fi
  28 ])dnl
  29
  30 dnl Check multiple functions to see whether each needs a declaration.
  31 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
  32 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
  33 dnl     [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
  34 AC_DEFUN([gcc_AC_CHECK_DECLS],
  35 [AC_FOREACH([gcc_AC_Func], [$1],
  36   [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_[]gcc_AC_Func),
  37   [Define to 1 if we found a declaration for ']gcc_AC_Func[', otherwise
  38    define to 0.])])dnl
  39 for ac_func in $1
  40 do
  41   ac_tr_decl=AS_TR_CPP([HAVE_DECL_$ac_func])
  42 gcc_AC_CHECK_DECL($ac_func,
  43   [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
  44   [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
  45 dnl It is possible that the include files passed in here are local headers
  46 dnl which supply a backup declaration for the relevant prototype based on
  47 dnl the definition of (or lack of) the HAVE_DECL_ macro.  If so, this test
  48 dnl will always return success.  E.g. see libiberty.h's handling of
  49 dnl `basename'.  To avoid this, we define the relevant HAVE_DECL_ macro to
  50 dnl 1 so that any local headers used do not provide their own prototype
  51 dnl during this test.
  52 #undef $ac_tr_decl
  53 #define $ac_tr_decl 1
  54   $4
  55 )
  56 done
  57 ])
  58
  59 dnl 'make compare' can be significantly faster, if cmp itself can
  60 dnl skip bytes instead of using tail.  The test being performed is
  61 dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
  62 dnl but we need to sink errors and handle broken shells.  We also test
  63 dnl for the parameter format "cmp file1 file2 skip1 skip2" which is
  64 dnl accepted by cmp on some systems.
  65 AC_DEFUN([gcc_AC_PROG_CMP_IGNORE_INITIAL],
  66 [AC_CACHE_CHECK([for cmp's capabilities], gcc_cv_prog_cmp_skip,
  67 [ echo abfoo >t1
  68   echo cdfoo >t2
  69   gcc_cv_prog_cmp_skip=slowcompare
  70   if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
  71     if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
  72       :
  73     else
  74       gcc_cv_prog_cmp_skip=gnucompare
  75     fi
  76   fi
  77   if test $gcc_cv_prog_cmp_skip = slowcompare ; then
  78     if cmp t1 t2 2 2 > /dev/null 2>&1; then
  79       if cmp t1 t2 1 1 > /dev/null 2>&1; then
  80         :
  81       else
  82         gcc_cv_prog_cmp_skip=fastcompare
  83       fi
  84     fi
  85   fi
  86   rm t1 t2
  87 ])
  88 make_compare_target=$gcc_cv_prog_cmp_skip
  89 AC_SUBST(make_compare_target)
  90 ])
  91
  92 dnl See if the printf functions in libc support %p in format strings.
  93 AC_DEFUN([gcc_AC_FUNC_PRINTF_PTR],
  94 [AC_CACHE_CHECK(whether the printf functions support %p,
  95   gcc_cv_func_printf_ptr,
  96 [AC_TRY_RUN([#include <stdio.h>
  97
  98 int main()
  99 {
 100   char buf[64];
 101   char *p = buf, *q = NULL;
 102   sprintf(buf, "%p", p);
 103   sscanf(buf, "%p", &q);
 104   return (p != q);
 105 }], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
 106         gcc_cv_func_printf_ptr=no)
 107 rm -f core core.* *.core])
 108 if test $gcc_cv_func_printf_ptr = yes ; then
 109   AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
 110 fi
 111 ])
 112
 113 dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
 114 AC_DEFUN([gcc_AC_PROG_LN_S],
 115 [AC_MSG_CHECKING(whether ln -s works)
 116 AC_CACHE_VAL(gcc_cv_prog_LN_S,
 117 [rm -f conftestdata_t
 118 echo >conftestdata_f
 119 if ln -s conftestdata_f conftestdata_t 2>/dev/null
 120 then
 121   gcc_cv_prog_LN_S="ln -s"
 122 else
 123   if ln conftestdata_f conftestdata_t 2>/dev/null
 124   then
 125     gcc_cv_prog_LN_S=ln
 126   else
 127     if cp -p conftestdata_f conftestdata_t 2>/dev/null
 128     then
 129       gcc_cv_prog_LN_S="cp -p"
 130     else
 131       gcc_cv_prog_LN_S=cp
 132     fi
 133   fi
 134 fi
 135 rm -f conftestdata_f conftestdata_t
 136 ])dnl
 137 LN_S="$gcc_cv_prog_LN_S"
 138 if test "$gcc_cv_prog_LN_S" = "ln -s"; then
 139   AC_MSG_RESULT(yes)
 140 else
 141   if test "$gcc_cv_prog_LN_S" = "ln"; then
 142     AC_MSG_RESULT([no, using ln])
 143   else
 144     AC_MSG_RESULT([no, and neither does ln, so using $gcc_cv_prog_LN_S])
 145   fi
 146 fi
 147 AC_SUBST(LN_S)dnl
 148 ])
 149
 150 dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
 151 dnl of the usual 2.
 152 AC_DEFUN([gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG],
 153 [AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
 154 [AC_TRY_COMPILE([
 155 #include <sys/types.h>
 156 #ifdef HAVE_SYS_STAT_H
 157 # include <sys/stat.h>
 158 #endif
 159 #ifdef HAVE_UNISTD_H
 160 # include <unistd.h>
 161 #endif
 162 #ifdef HAVE_DIRECT_H
 163 # include <direct.h>
 164 #endif], [mkdir ("foo", 0);],
 165         gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
 166 if test $gcc_cv_mkdir_takes_one_arg = yes ; then
 167   AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
 168 fi
 169 ])
 170
 171 AC_DEFUN([gcc_AC_PROG_INSTALL],
 172 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 173 # Find a good install program.  We prefer a C program (faster),
 174 # so one script is as good as another.  But avoid the broken or
 175 # incompatible versions:
 176 # SysV /etc/install, /usr/sbin/install
 177 # SunOS /usr/etc/install
 178 # IRIX /sbin/install
 179 # AIX /bin/install
 180 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 181 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 182 # ./install, which can be erroneously created by make from ./install.sh.
 183 AC_MSG_CHECKING(for a BSD compatible install)
 184 if test -z "$INSTALL"; then
 185 AC_CACHE_VAL(ac_cv_path_install,
 186 [  IFS="${IFS=  }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
 187   for ac_dir in $PATH; do
 188     # Account for people who put trailing slashes in PATH elements.
 189     case "$ac_dir/" in
 190     /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
 191     *)
 192       # OSF1 and SCO ODT 3.0 have their own names for install.
 193       for ac_prog in ginstall scoinst install; do
 194         if test -f $ac_dir/$ac_prog; then
 195           if test $ac_prog = install &&
 196             grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
 197             # AIX install.  It has an incompatible calling convention.
 198             # OSF/1 installbsd also uses dspmsg, but is usable.
 199             :
 200           else
 201             ac_cv_path_install="$ac_dir/$ac_prog -c"
 202             break 2
 203           fi
 204         fi
 205       done
 206       ;;
 207     esac
 208   done
 209   IFS="$ac_save_IFS"
 210 ])dnl
 211   if test "${ac_cv_path_install+set}" = set; then
 212     INSTALL="$ac_cv_path_install"
 213   else
 214     # As a last resort, use the slow shell script.  We don't cache a
 215     # path for INSTALL within a source directory, because that will
 216     # break other packages using the cache if that directory is
 217     # removed, or if the path is relative.
 218     INSTALL="$ac_install_sh"
 219   fi
 220 fi
 221 dnl We do special magic for INSTALL instead of AC_SUBST, to get
 222 dnl relative paths right.
 223 AC_MSG_RESULT($INSTALL)
 224 AC_SUBST(INSTALL)dnl
 225
 226 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 227 # It thinks the first close brace ends the variable substitution.
 228 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 229 AC_SUBST(INSTALL_PROGRAM)dnl
 230
 231 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 232 AC_SUBST(INSTALL_DATA)dnl
 233 ])
 234
 235 # mmap(2) blacklisting.  Some platforms provide the mmap library routine
 236 # but don't support all of the features we need from it.
 237 AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST],
 238 [
 239 AC_CHECK_HEADER([sys/mman.h],
 240                 [gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no])
 241 AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no])
 242 if test "$gcc_header_sys_mman_h" != yes \
 243  || test "$gcc_func_mmap" != yes; then
 244    gcc_cv_func_mmap_file=no
 245    gcc_cv_func_mmap_dev_zero=no
 246    gcc_cv_func_mmap_anon=no
 247 else
 248    AC_CACHE_CHECK([whether read-only mmap of a plain file works],
 249   gcc_cv_func_mmap_file,
 250   [# Add a system to this blacklist if
 251    # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
 252    # memory area containing the same data that you'd get if you applied
 253    # read() to the same fd.  The only system known to have a problem here
 254    # is VMS, where text files have record structure.
 255    case "$host_os" in
 256      vms* | ultrix*)
 257         gcc_cv_func_mmap_file=no ;;
 258      *)
 259         gcc_cv_func_mmap_file=yes;;
 260    esac])
 261    AC_CACHE_CHECK([whether mmap from /dev/zero works],
 262   gcc_cv_func_mmap_dev_zero,
 263   [# Add a system to this blacklist if it has mmap() but /dev/zero
 264    # does not exist, or if mmapping /dev/zero does not give anonymous
 265    # zeroed pages with both the following properties:
 266    # 1. If you map N consecutive pages in with one call, and then
 267    #    unmap any subset of those pages, the pages that were not
 268    #    explicitly unmapped remain accessible.
 269    # 2. If you map two adjacent blocks of memory and then unmap them
 270    #    both at once, they must both go away.
 271    # Systems known to be in this category are Windows (all variants),
 272    # VMS, and Darwin.
 273    case "$host_os" in
 274      vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
 275         gcc_cv_func_mmap_dev_zero=no ;;
 276      *)
 277         gcc_cv_func_mmap_dev_zero=yes;;
 278    esac])
 279
 280    # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
 281    AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
 282     [AC_TRY_COMPILE(
 283 [#include <sys/types.h>
 284 #include <sys/mman.h>
 285 #include <unistd.h>
 286
 287 #ifndef MAP_ANONYMOUS
 288 #define MAP_ANONYMOUS MAP_ANON
 289 #endif
 290 ],
 291 [int n = MAP_ANONYMOUS;],
 292     gcc_cv_decl_map_anon=yes,
 293     gcc_cv_decl_map_anon=no)])
 294
 295    if test $gcc_cv_decl_map_anon = no; then
 296      gcc_cv_func_mmap_anon=no
 297    else
 298      AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
 299      gcc_cv_func_mmap_anon,
 300   [# Add a system to this blacklist if it has mmap() and MAP_ANON or
 301    # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
 302    # doesn't give anonymous zeroed pages with the same properties listed
 303    # above for use of /dev/zero.
 304    # Systems known to be in this category are Windows, VMS, and SCO Unix.
 305    case "$host_os" in
 306      vms* | cygwin* | pe | mingw* | sco* | udk* )
 307         gcc_cv_func_mmap_anon=no ;;
 308      *)
 309         gcc_cv_func_mmap_anon=yes;;
 310    esac])
 311    fi
 312 fi
 313
 314 if test $gcc_cv_func_mmap_file = yes; then
 315   AC_DEFINE(HAVE_MMAP_FILE, 1,
 316             [Define if read-only mmap of a plain file works.])
 317 fi
 318 if test $gcc_cv_func_mmap_dev_zero = yes; then
 319   AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
 320             [Define if mmap of /dev/zero works.])
 321 fi
 322 if test $gcc_cv_func_mmap_anon = yes; then
 323   AC_DEFINE(HAVE_MMAP_ANON, 1,
 324             [Define if mmap with MAP_ANON(YMOUS) works.])
 325 fi
 326 ])
 327
 328 dnl Locate a program and check that its version is acceptable.
 329 dnl AC_PROG_CHECK_VER(var, name, version-switch,
 330 dnl                  version-extract-regexp, version-glob)
 331 AC_DEFUN([gcc_AC_CHECK_PROG_VER],
 332 [AC_CHECK_PROG([$1], [$2], [$2])
 333 if test -n "[$]$1"; then
 334   # Found it, now check the version.
 335   AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
 336 [changequote(<<,>>)dnl
 337   ac_prog_version=`<<$>>$1 $3 2>&1 |
 338                    sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
 339 changequote([,])dnl
 340   echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
 341 changequote(<<,>>)dnl
 342   case $ac_prog_version in
 343     '')     gcc_cv_prog_$2_modern=no;;
 344     <<$5>>)
 345             gcc_cv_prog_$2_modern=yes;;
 346     *)      gcc_cv_prog_$2_modern=no;;
 347   esac
 348 changequote([,])dnl
 349 ])
 350 else
 351   gcc_cv_prog_$2_modern=no
 352 fi
 353 ])
 354
 355 dnl Determine if enumerated bitfields are unsigned.   ISO C says they can
 356 dnl be either signed or unsigned.
 357 dnl
 358 AC_DEFUN([gcc_AC_C_ENUM_BF_UNSIGNED],
 359 [AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
 360 [AC_TRY_RUN(#include <stdlib.h>
 361 enum t { BLAH = 128 } ;
 362 struct s_t { enum t member : 8; } s ;
 363 int main(void)
 364 {
 365         s.member = BLAH;
 366         if (s.member < 0) exit(1);
 367         exit(0);
 368
 369 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
 370 if test $gcc_cv_enum_bf_unsigned = yes; then
 371   AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
 372     [Define if enumerated bitfields are treated as unsigned values.])
 373 fi])
 374
 375 dnl Probe number of bits in a byte.
 376 dnl Note C89 requires CHAR_BIT >= 8.
 377 dnl
 378 AC_DEFUN([gcc_AC_C_CHAR_BIT],
 379 [AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
 380 [AC_EGREP_CPP(found,
 381 [#ifdef HAVE_LIMITS_H
 382 #include <limits.h>
 383 #endif
 384 #ifdef CHAR_BIT
 385 found
 386 #endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
 387 ])
 388 if test $gcc_cv_decl_char_bit = no; then
 389   AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
 390 [i=8
 391  gcc_cv_c_nbby=
 392  while test $i -lt 65; do
 393    AC_TRY_COMPILE(,
 394      [switch(0) {
 395   case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
 396   case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
 397   ; }],
 398      [gcc_cv_c_nbby=$i; break])
 399    i=`expr $i + 1`
 400  done
 401  test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
 402 ])
 403 if test $gcc_cv_c_nbby = failed; then
 404   AC_MSG_ERROR(cannot determine number of bits in a byte)
 405 else
 406   AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
 407   [Define as the number of bits in a byte, if \`limits.h' doesn't.])
 408 fi
 409 fi])
 410
 411 dnl Checking for long long.
 412 dnl By Caolan McNamara <caolan@skynet.ie>
 413 dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
 414 dnl
 415 AC_DEFUN([gcc_AC_C_LONG_LONG],
 416 [AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
 417   [AC_TRY_COMPILE(,[long long int i;],
 418          ac_cv_c_long_long=yes,
 419          ac_cv_c_long_long=no)])
 420   if test $ac_cv_c_long_long = yes; then
 421     AC_DEFINE(HAVE_LONG_LONG, 1,
 422       [Define if your compiler supports the \`long long' type.])
 423   fi
 424 AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
 425   [AC_TRY_COMPILE(,[__int64 i;],
 426         ac_cv_c___int64=yes,
 427         ac_cv_c___int64=no)])
 428   if test $ac_cv_c___int64 = yes; then
 429     AC_DEFINE(HAVE___INT64, 1,
 430       [Define if your compiler supports the \`__int64' type.])
 431   fi
 432 ])
 433
 434 dnl From Bruno Haible.
 435
 436 AC_DEFUN([AM_LANGINFO_CODESET],
 437 [
 438   AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
 439     [AC_TRY_LINK([#include <langinfo.h>],
 440       [char* cs = nl_langinfo(CODESET);],
 441       am_cv_langinfo_codeset=yes,
 442       am_cv_langinfo_codeset=no)
 443     ])
 444   if test $am_cv_langinfo_codeset = yes; then
 445     AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
 446       [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
 447   fi
 448 ])
 449
 450 AC_DEFUN([gcc_AC_INITFINI_ARRAY],
 451 [AC_ARG_ENABLE(initfini-array,
 452         [  --enable-initfini-array      use .init_array/.fini_array sections],
 453         [], [
 454 AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
 455                  gcc_cv_initfini_array, [dnl
 456   AC_TRY_RUN([
 457 static int x = -1;
 458 int main (void) { return x; }
 459 int foo (void) { x = 0; }
 460 int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;],
 461              [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
 462              [gcc_cv_initfini_array=no])])
 463   enable_initfini_array=$gcc_cv_initfini_array
 464 ])
 465 if test $enable_initfini_array = yes; then
 466   AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
 467     [Define .init_array/.fini_array sections are available and working.])
 468 fi])
 469
 470 dnl # _gcc_COMPUTE_GAS_VERSION
 471 dnl # Used by gcc_GAS_VERSION_GTE_IFELSE
 472 dnl #
 473 dnl # WARNING:
 474 dnl # gcc_cv_as_gas_srcdir must be defined before this.
 475 dnl # This gross requirement will go away eventually.
 476 AC_DEFUN([_gcc_COMPUTE_GAS_VERSION],
 477 [gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
 478 for f in $gcc_cv_as_bfd_srcdir/configure \
 479          $gcc_cv_as_gas_srcdir/configure \
 480          $gcc_cv_as_gas_srcdir/configure.in \
 481          $gcc_cv_as_gas_srcdir/Makefile.in ; do
 482   gcc_cv_gas_version=`sed -n -e 's/^[[  ]]*\(VERSION=[[0-9]]*\.[[0-9]]*.*\)/\1/p' < $f`
 483   if test x$gcc_cv_gas_version != x; then
 484     break
 485   fi
 486 done
 487 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"`
 488 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"`
 489 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"`
 490 case $gcc_cv_gas_patch_version in
 491   "") gcc_cv_gas_patch_version="0" ;;
 492 esac
 493 gcc_cv_gas_vers=`expr \( \( $gcc_cv_gas_major_version \* 1000 \) \
 494                             + $gcc_cv_gas_minor_version \) \* 1000 \
 495                             + $gcc_cv_gas_patch_version`
 496 ]) []dnl # _gcc_COMPUTE_GAS_VERSION
 497
 498 dnl # gcc_GAS_VERSION_GTE_IFELSE([elf,] major, minor, patchlevel,
 499 dnl #                     [command_if_true = :], [command_if_false = :])
 500 dnl # Check to see if the version of GAS is greater than or
 501 dnl # equal to the specified version.
 502 dnl #
 503 dnl # The first ifelse() shortens the shell code if the patchlevel
 504 dnl # is unimportant (the usual case).  The others handle missing
 505 dnl # commands.  Note that the tests are structured so that the most
 506 dnl # common version number cases are tested first.
 507 AC_DEFUN([_gcc_GAS_VERSION_GTE_IFELSE],
 508 [ifelse([$1], elf,
 509  [if test $in_tree_gas_is_elf = yes \
 510   &&],
 511  [if]) test $gcc_cv_gas_vers -ge `expr \( \( $2 \* 1000 \) + $3 \) \* 1000 + $4`
 512   then dnl
 513 ifelse([$5],,:,[$5])[]dnl
 514 ifelse([$6],,,[
 515   else $6])
 516 fi])
 517
 518 AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE],
 519 [AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION])dnl
 520 ifelse([$1], elf, [_gcc_GAS_VERSION_GTE_IFELSE($@)],
 521                   [_gcc_GAS_VERSION_GTE_IFELSE(,$@)])])
 522
 523 dnl gcc_GAS_CHECK_FEATURE(description, cv, [[elf,]major,minor,patchlevel],
 524 dnl [extra switches to as], [assembler input],
 525 dnl [extra testing logic], [command if feature available])
 526 dnl
 527 dnl Checks for an assembler feature.  If we are building an in-tree
 528 dnl gas, the feature is available if the associated assembler version
 529 dnl is greater than or equal to major.minor.patchlevel.  If not, then
 530 dnl ASSEMBLER INPUT is fed to the assembler and the feature is available
 531 dnl if assembly succeeds.  If EXTRA TESTING LOGIC is not the empty string,
 532 dnl then it is run instead of simply setting CV to "yes" - it is responsible
 533 dnl for doing so, if appropriate.
 534 AC_DEFUN([gcc_GAS_CHECK_FEATURE],
 535 [AC_CACHE_CHECK([assembler for $1], [$2],
 536  [[$2]=no
 537   ifelse([$3],,,[dnl
 538   if test $in_tree_gas = yes; then
 539     gcc_GAS_VERSION_GTE_IFELSE($3, [[$2]=yes])
 540   el])if test x$gcc_cv_as != x; then
 541     echo ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]') > conftest.s
 542     if AC_TRY_COMMAND([$gcc_cv_as $4 -o conftest.o conftest.s >&AC_FD_CC])
 543     then
 544         ifelse([$6],, [$2]=yes, [$6])
 545     else
 546       echo "configure: failed program was" >&AC_FD_CC
 547       cat conftest.s >&AC_FD_CC
 548     fi
 549     rm -f conftest.o conftest.s
 550   fi])
 551 ifelse([$7],,,[dnl
 552 if test $[$2] = yes; then
 553   $7
 554 fi])])
 555
 556 # AM_PROG_CC_C_O
 557 # --------------
 558 # Like AC_PROG_CC_C_O, but changed for automake.
 559
 560 # Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
 561
 562 # This program is free software; you can redistribute it and/or modify
 563 # it under the terms of the GNU General Public License as published by
 564 # the Free Software Foundation; either version 2, or (at your option)
 565 # any later version.
 566
 567 # This program is distributed in the hope that it will be useful,
 568 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 569 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 570 # GNU General Public License for more details.
 571
 572 # You should have received a copy of the GNU General Public License
 573 # along with this program; if not, write to the Free Software
 574 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 575 # 02111-1307, USA.
 576
 577 AC_DEFUN([AM_PROG_CC_C_O],
 578 [AC_REQUIRE([AC_PROG_CC_C_O])dnl
 579 AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 580 # FIXME: we rely on the cache variable name because
 581 # there is no other way.
 582 set dummy $CC
 583 ac_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']`
 584 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" != yes"; then
 585    # Losing compiler, so override with the script.
 586    # FIXME: It is wrong to rewrite CC.
 587    # But if we don't then we get into trouble of one sort or another.
 588    # A longer-term fix would be to have automake use am__CC in this case,
 589    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 590    CC="$am_aux_dir/compile $CC"
 591 fi
 592 ])
 593
 594 # AM_AUX_DIR_EXPAND
 595
 596 # Copyright (C) 2001, 2003 Free Software Foundation, Inc.
 597
 598 # This program is free software; you can redistribute it and/or modify
 599 # it under the terms of the GNU General Public License as published by
 600 # the Free Software Foundation; either version 2, or (at your option)
 601 # any later version.
 602
 603 # This program is distributed in the hope that it will be useful,
 604 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 605 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 606 # GNU General Public License for more details.
 607
 608 # You should have received a copy of the GNU General Public License
 609 # along with this program; if not, write to the Free Software
 610 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 611 # 02111-1307, USA.
 612
 613 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
 614 # $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
 615 # `$srcdir', `$srcdir/..', or `$srcdir/../..'.
 616 #
 617 # Of course, Automake must honor this variable whenever it calls a
 618 # tool from the auxiliary directory.  The problem is that $srcdir (and
 619 # therefore $ac_aux_dir as well) can be either absolute or relative,
 620 # depending on how configure is run.  This is pretty annoying, since
 621 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
 622 # source directory, any form will work fine, but in subdirectories a
 623 # relative path needs to be adjusted first.
 624 #
 625 # $ac_aux_dir/missing
 626 #    fails when called from a subdirectory if $ac_aux_dir is relative
 627 # $top_srcdir/$ac_aux_dir/missing
 628 #    fails if $ac_aux_dir is absolute,
 629 #    fails when called from a subdirectory in a VPATH build with
 630 #          a relative $ac_aux_dir
 631 #
 632 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
 633 # are both prefixed by $srcdir.  In an in-source build this is usually
 634 # harmless because $srcdir is `.', but things will broke when you
 635 # start a VPATH build or use an absolute $srcdir.
 636 #
 637 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
 638 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
 639 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
 640 # and then we would define $MISSING as
 641 #   MISSING="\${SHELL} $am_aux_dir/missing"
 642 # This will work as long as MISSING is not called from configure, because
 643 # unfortunately $(top_srcdir) has no meaning in configure.
 644 # However there are other variables, like CC, which are often used in
 645 # configure, and could therefore not use this "fixed" $ac_aux_dir.
 646 #
 647 # Another solution, used here, is to always expand $ac_aux_dir to an
 648 # absolute PATH.  The drawback is that using absolute paths prevent a
 649 # configured tree to be moved without reconfiguration.
 650
 651 AC_DEFUN([AM_AUX_DIR_EXPAND],
 652 [dnl Rely on autoconf to set up CDPATH properly.
 653 AC_PREREQ([2.50])dnl
 654 # expand $ac_aux_dir to an absolute path
 655 am_aux_dir=`cd $ac_aux_dir && pwd`
 656 ])
 657
 658
 659 dnl GCC_TARGET_TEMPLATE(KEY)
 660 dnl ------------------------
 661 dnl Define KEY as a valid configure key on the target machine.
 662
 663 m4_define([GCC_TARGET_TEMPLATE],
 664 [m4_define([GCC_TARGET_TEMPLATE($1)],[])])
 665
 666 dnl AH_TEMPLATE(KEY, DESCRIPTION)
 667 dnl -----------------------------
 668 dnl Issue an autoheader template for KEY, i.e., a comment composed of
 669 dnl DESCRIPTION (properly wrapped), and then #undef KEY.  Redefinition
 670 dnl of the macro in autoheader.m4, to support definition of only a few
 671 dnl keys while compiling target libraries.
 672
 673 m4_define([AH_TEMPLATE],
 674 [AH_VERBATIM([$1],m4_text_wrap([$2 */], [   ], [/* ])
 675 m4_ifdef([GCC_TARGET_TEMPLATE($1)],[],[#ifndef USED_FOR_TARGET
 676 ])[#undef $1]m4_ifdef([GCC_TARGET_TEMPLATE($1)],[],[
 677 #endif
 678 ]))])