8sa1-gcc/gcc/aclocal.m4

sinclude(../config/acx.m4)
sinclude(../config/accross.m4)
sinclude(../config/gettext.m4)

dnl See if stdbool.h properly defines bool and true/false.
AC_DEFUN(gcc_AC_HEADER_STDBOOL,
[AC_CACHE_CHECK([for working stdbool.h],
  ac_cv_header_stdbool_h,
[AC_TRY_COMPILE([#include <stdbool.h>],
[bool foo = false;],
ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
if test $ac_cv_header_stdbool_h = yes; then
  AC_DEFINE(HAVE_STDBOOL_H, 1,
  [Define if you have a working <stdbool.h> header file.])
fi
])

dnl See whether we can include both string.h and strings.h.
AC_DEFUN(gcc_AC_HEADER_STRING,
[AC_CACHE_CHECK([whether string.h and strings.h may both be included],
  gcc_cv_header_string,
[AC_TRY_COMPILE([#include <string.h>
#include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
if test $gcc_cv_header_string = yes; then
  AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
fi
])

dnl See whether we need a declaration for a function.
dnl The result is highly dependent on the INCLUDES passed in, so make sure
dnl to use a different cache variable name in this macro if it is invoked
dnl in a different context somewhere else.
dnl gcc_AC_CHECK_DECL(SYMBOL,
dnl 	[ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
AC_DEFUN(gcc_AC_CHECK_DECL,
[AC_MSG_CHECKING([whether $1 is declared])
AC_CACHE_VAL(gcc_cv_have_decl_$1,
[AC_TRY_COMPILE([$4],
[#ifndef $1
char *(*pfn) = (char *(*)) $1 ;
#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
  AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
else
  AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
fi
])dnl

dnl Check multiple functions to see whether each needs a declaration.
dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
dnl gcc_AC_CHECK_DECLS(SYMBOLS,
dnl 	[ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
AC_DEFUN(gcc_AC_CHECK_DECLS,
[for ac_func in $1
do
changequote(, )dnl
  ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
changequote([, ])dnl
gcc_AC_CHECK_DECL($ac_func,
  [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
  [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
dnl It is possible that the include files passed in here are local headers
dnl which supply a backup declaration for the relevant prototype based on
dnl the definition of (or lack of) the HAVE_DECL_ macro.  If so, this test
dnl will always return success.  E.g. see libiberty.h's handling of
dnl `basename'.  To avoid this, we define the relevant HAVE_DECL_ macro to
dnl 1 so that any local headers used do not provide their own prototype
dnl during this test.
#undef $ac_tr_decl
#define $ac_tr_decl 1
  $4
)
done
dnl Automatically generate config.h entries via autoheader.
if test x = y ; then
  patsubst(translit([$1], [a-z], [A-Z]), [\w+],
    [AC_DEFINE([HAVE_DECL_\&], 1,
      [Define to 1 if we found this declaration otherwise define to 0.])])dnl
fi
])

dnl See if the printf functions in libc support %p in format strings.
AC_DEFUN(gcc_AC_FUNC_PRINTF_PTR,
[AC_CACHE_CHECK(whether the printf functions support %p,
  gcc_cv_func_printf_ptr,
[AC_TRY_RUN([#include <stdio.h>

int main()
{
  char buf[64];
  char *p = buf, *q = NULL;
  sprintf(buf, "%p", p);
  sscanf(buf, "%p", &q);
  return (p != q);
}], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
	gcc_cv_func_printf_ptr=no)
rm -f core core.* *.core])
if test $gcc_cv_func_printf_ptr = yes ; then
  AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
fi
])

dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
AC_DEFUN(gcc_AC_PROG_LN_S,
[AC_MSG_CHECKING(whether ln -s works)
AC_CACHE_VAL(gcc_cv_prog_LN_S,
[rm -f conftestdata_t
echo >conftestdata_f
if ln -s conftestdata_f conftestdata_t 2>/dev/null
then
  gcc_cv_prog_LN_S="ln -s"
else
  if ln conftestdata_f conftestdata_t 2>/dev/null
  then
    gcc_cv_prog_LN_S=ln
  else
    gcc_cv_prog_LN_S=cp
  fi
fi
rm -f conftestdata_f conftestdata_t
])dnl
LN_S="$gcc_cv_prog_LN_S"
if test "$gcc_cv_prog_LN_S" = "ln -s"; then
  AC_MSG_RESULT(yes)
else
  if test "$gcc_cv_prog_LN_S" = "ln"; then
    AC_MSG_RESULT([no, using ln])
  else
    AC_MSG_RESULT([no, and neither does ln, so using cp])
  fi
fi
AC_SUBST(LN_S)dnl
])

dnl See if hard links work and if not, try to substitute either symbolic links or simple copy.
AC_DEFUN(gcc_AC_PROG_LN,
[AC_MSG_CHECKING(whether ln works)
AC_CACHE_VAL(gcc_cv_prog_LN,
[rm -f conftestdata_t
echo >conftestdata_f
if ln conftestdata_f conftestdata_t 2>/dev/null
then
  gcc_cv_prog_LN="ln"
else
  if ln -s conftestdata_f conftestdata_t 2>/dev/null
  then
    gcc_cv_prog_LN="ln -s"
  else
    gcc_cv_prog_LN=cp
  fi
fi
rm -f conftestdata_f conftestdata_t
])dnl
LN="$gcc_cv_prog_LN"
if test "$gcc_cv_prog_LN" = "ln"; then
  AC_MSG_RESULT(yes)
else
  if test "$gcc_cv_prog_LN" = "ln -s"; then
    AC_MSG_RESULT([no, using ln -s])
  else
    AC_MSG_RESULT([no, and neither does ln -s, so using cp])
  fi
fi
AC_SUBST(LN)dnl
])

dnl Check whether _Bool is built-in.
AC_DEFUN(gcc_AC_C__BOOL,
[AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
[AC_TRY_COMPILE(,
[_Bool foo;],
gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
])
if test $gcc_cv_c__bool = yes; then
  AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
fi
])

dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
dnl of the usual 2.
AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG,
[AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
[AC_TRY_COMPILE([
#include <sys/types.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_DIRECT_H
# include <direct.h>
#endif], [mkdir ("foo", 0);], 
        gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
if test $gcc_cv_mkdir_takes_one_arg = yes ; then
  AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
fi
])

AC_DEFUN(gcc_AC_PROG_INSTALL,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
AC_MSG_CHECKING(for a BSD compatible install)
if test -z "$INSTALL"; then
AC_CACHE_VAL(ac_cv_path_install,
[  IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="${IFS}:"
  for ac_dir in $PATH; do
    # Account for people who put trailing slashes in PATH elements.
    case "$ac_dir/" in
    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
    *)
      # OSF1 and SCO ODT 3.0 have their own names for install.
      for ac_prog in ginstall scoinst install; do
        if test -f $ac_dir/$ac_prog; then
	  if test $ac_prog = install &&
            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    # OSF/1 installbsd also uses dspmsg, but is usable.
	    :
	  else
	    ac_cv_path_install="$ac_dir/$ac_prog -c"
	    break 2
	  fi
	fi
      done
      ;;
    esac
  done
  IFS="$ac_save_IFS"
])dnl
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL="$ac_cv_path_install"
  else
    # As a last resort, use the slow shell script.  We don't cache a
    # path for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the path is relative.
    INSTALL="$ac_install_sh"
  fi
fi
dnl We do special magic for INSTALL instead of AC_SUBST, to get
dnl relative paths right.
AC_MSG_RESULT($INSTALL)
AC_SUBST(INSTALL)dnl

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
AC_SUBST(INSTALL_PROGRAM)dnl

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
AC_SUBST(INSTALL_DATA)dnl
])

dnl Test for GNAT.
dnl We require the gnatbind program, and a compiler driver that
dnl understands Ada.  The user may set the driver name explicitly
dnl with ADAC; also, the user's CC setting is tried.  Failing that,
dnl we try gcc and cc, then a sampling of names known to be used for
dnl the Ada driver on various systems.
dnl
dnl Sets the shell variable have_gnat to yes or no as appropriate, and
dnl substitutes GNATBIND and ADAC.
AC_DEFUN([gcc_AC_PROG_GNAT],
[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
AC_CHECK_TOOL(GNATBIND, gnatbind, no)
AC_CACHE_CHECK([for compiler driver that understands Ada],
		 gcc_cv_prog_adac,
[cat >conftest.adb <<EOF
procedure conftest is begin null; end conftest;
EOF
gcc_cv_prog_adac=no
# Have to do ac_tool_prefix and user overrides by hand.
for cand in ${ADAC+"$ADAC"} ${CC+"$CC"}	\
	    ${ac_tool_prefix}gcc	gcc		\
	    ${ac_tool_prefix}cc		cc		\
	    ${ac_tool_prefix}gnatgcc	gnatgcc		\
	    ${ac_tool_prefix}gnatcc	gnatcc		\
	    ${ac_tool_prefix}adagcc	adagcc		\
	    ${ac_tool_prefix}adacc	adacc		; do
  # There is a bug in all released versions of GCC which causes the
  # driver to exit successfully when the appropriate language module
  # has not been installed.  This is fixed in 2.95.4, 3.0.2, and 3.1.
  # Therefore we must check for the error message as well as an
  # unsuccessful exit.
  errors=`($cand -c conftest.adb) 2>&1 || echo failure`
  if test x"$errors" = x; then
    gcc_cv_prog_adac=$cand
    break
  fi
done
rm -f conftest.*])
ADAC=$gcc_cv_prog_adac
AC_SUBST(ADAC)

if test x$GNATBIND != xno && test x$ADAC != xno; then
  have_gnat=yes
else
  have_gnat=no
fi
])

dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
dnl like AC_PATH_PROG but use other cache variables
AC_DEFUN(GCC_PATH_PROG,
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(gcc_cv_path_$1,
[case "[$]$1" in
  /*)
  gcc_cv_path_$1="[$]$1" # Let the user override the test with a path.
  ;;
  ?:/*)			 
  gcc_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
  ;;
  *)
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl POSIX.2 word splitting is done only on the output of word expansions,
dnl not every word.  This closes a longstanding sh security hole.
  ac_dummy="ifelse([$4], , $PATH, [$4])"
  for ac_dir in $ac_dummy; do 
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      gcc_cv_path_$1="$ac_dir/$ac_word"
      break
    fi
  done
  IFS="$ac_save_ifs"
dnl If no 3rd arg is given, leave the cache variable unset,
dnl so GCC_PATH_PROGS will keep looking.
ifelse([$3], , , [  test -z "[$]gcc_cv_path_$1" && gcc_cv_path_$1="$3"
])dnl
  ;;
esac])dnl
$1="$gcc_cv_path_$1"
if test -n "[$]$1"; then
  AC_MSG_RESULT([$]$1)
else
  AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
])

# mmap(2) blacklisting.  Some platforms provide the mmap library routine
# but don't support all of the features we need from it.
AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST],
[if test $ac_cv_header_sys_mman_h != yes \
 || test $ac_cv_func_mmap != yes; then
   gcc_cv_func_mmap_file=no
   gcc_cv_func_mmap_dev_zero=no
   gcc_cv_func_mmap_anon=no
else
   AC_CACHE_CHECK([whether read-only mmap of a plain file works], 
  gcc_cv_func_mmap_file,
  [# Add a system to this blacklist if 
   # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
   # memory area containing the same data that you'd get if you applied
   # read() to the same fd.  The only system known to have a problem here
   # is VMS, where text files have record structure.
   case "$host_os" in
     vms*) 
        gcc_cv_func_mmap_file=no ;;
     *)
        gcc_cv_func_mmap_file=yes;;
   esac])
   AC_CACHE_CHECK([whether mmap from /dev/zero works],
  gcc_cv_func_mmap_dev_zero,
  [# Add a system to this blacklist if it has mmap() but /dev/zero
   # does not exist, or if mmapping /dev/zero does not give anonymous
   # zeroed pages with both the following properties:
   # 1. If you map N consecutive pages in with one call, and then
   #    unmap any subset of those pages, the pages that were not
   #    explicitly unmapped remain accessible.
   # 2. If you map two adjacent blocks of memory and then unmap them
   #    both at once, they must both go away.
   # Systems known to be in this category are Windows (all variants),
   # VMS, and Darwin.
   case "$host_os" in
     vms* | cygwin* | pe | mingw* | darwin*)
        gcc_cv_func_mmap_dev_zero=no ;;
     *)
        gcc_cv_func_mmap_dev_zero=yes;;
   esac])

   # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
   AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
    [AC_TRY_COMPILE(
[#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
],
[int n = MAP_ANONYMOUS;],
    gcc_cv_decl_map_anon=yes,
    gcc_cv_decl_map_anon=no)])

   if test $gcc_cv_decl_map_anon = no; then
     gcc_cv_func_mmap_anon=no
   else
     AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
     gcc_cv_func_mmap_anon,
  [# Add a system to this blacklist if it has mmap() and MAP_ANON or
   # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
   # doesn't give anonymous zeroed pages with the same properties listed
   # above for use of /dev/zero.
   # Systems known to be in this category are Windows, VMS, and SCO Unix.
   case "$host_os" in
     vms* | cygwin* | pe | mingw* | sco* | udk* )
        gcc_cv_func_mmap_anon=no ;;
     *)
        gcc_cv_func_mmap_anon=yes;;
   esac])
   fi
fi

if test $gcc_cv_func_mmap_file = yes; then
  AC_DEFINE(HAVE_MMAP_FILE, 1,
	    [Define if read-only mmap of a plain file works.])
fi
if test $gcc_cv_func_mmap_dev_zero = yes; then
  AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
	    [Define if mmap of /dev/zero works.])
fi
if test $gcc_cv_func_mmap_anon = yes; then
  AC_DEFINE(HAVE_MMAP_ANON, 1,
	    [Define if mmap with MAP_ANON(YMOUS) works.])
fi
])

dnl Locate a program and check that its version is acceptable.
dnl AC_PROG_CHECK_VER(var, name, version-switch,
dnl                  version-extract-regexp, version-glob)
AC_DEFUN(gcc_AC_CHECK_PROG_VER,
[AC_CHECK_PROG([$1], [$2], [$2])
if test -n "[$]$1"; then
  # Found it, now check the version.
  AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
[changequote(<<,>>)dnl
  ac_prog_version=`<<$>>$1 $3 2>&1 |
                   sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
changequote([,])dnl
  echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
changequote(<<,>>)dnl
  case $ac_prog_version in
    '')     gcc_cv_prog_$2_modern=no;;
    <<$5>>)
            gcc_cv_prog_$2_modern=yes;;
    *)      gcc_cv_prog_$2_modern=no;;
  esac
changequote([,])dnl
])
else
  gcc_cv_prog_$2_modern=no
fi
])

dnl Determine if enumerated bitfields are unsigned.   ISO C says they can 
dnl be either signed or unsigned.
dnl
AC_DEFUN(gcc_AC_C_ENUM_BF_UNSIGNED,
[AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
[AC_TRY_RUN(#include <stdlib.h>
enum t { BLAH = 128 } ;
struct s_t { enum t member : 8; } s ;
int main(void)
{            
        s.member = BLAH;
        if (s.member < 0) exit(1);
        exit(0);

}, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
if test $gcc_cv_enum_bf_unsigned = yes; then
  AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
    [Define if enumerated bitfields are treated as unsigned values.])
fi])

dnl Probe number of bits in a byte.
dnl Note C89 requires CHAR_BIT >= 8.
dnl
AC_DEFUN(gcc_AC_C_CHAR_BIT,
[AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
[AC_EGREP_CPP(found,
[#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef CHAR_BIT
found
#endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
])
if test $gcc_cv_decl_char_bit = no; then
  AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
[i=8
 gcc_cv_c_nbby=
 while test $i -lt 65; do
   AC_TRY_COMPILE(,
     [switch(0) {
  case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
  case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
  ; }], 
     [gcc_cv_c_nbby=$i; break])
   i=`expr $i + 1`
 done
 test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
])
if test $gcc_cv_c_nbby = failed; then
  AC_MSG_ERROR(cannot determine number of bits in a byte)
else
  AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
  [Define as the number of bits in a byte, if \`limits.h' doesn't.])
fi
fi])

dnl Checking for long long.
dnl By Caolan McNamara <caolan@skynet.ie>
dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
dnl
AC_DEFUN([gcc_AC_C_LONG_LONG],
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
  [AC_TRY_COMPILE(,[long long int i;],
         ac_cv_c_long_long=yes,
         ac_cv_c_long_long=no)])
  if test $ac_cv_c_long_long = yes; then
    AC_DEFINE(HAVE_LONG_LONG, 1,
      [Define if your compiler supports the \`long long' type.])
  fi
AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
  [AC_TRY_COMPILE(,[__int64 i;],
	ac_cv_c___int64=yes,
	ac_cv_c___int64=no)])
  if test $ac_cv_c___int64 = yes; then
    AC_DEFINE(HAVE___INT64, 1,
      [Define if your compiler supports the \`__int64' type.])
  fi
])

#serial AM2

dnl From Bruno Haible.

AC_DEFUN([AM_ICONV],
[
  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
  dnl those with the standalone portable GNU libiconv installed).

  am_cv_lib_iconv_ldpath=
  AC_ARG_WITH([libiconv-prefix],
[  --with-libiconv-prefix=DIR  search for libiconv in DIR/include and DIR/lib], [
    for dir in `echo "$withval" | tr : ' '`; do
      if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
      if test -d $dir/lib; then am_cv_lib_iconv_ldpath="-L$dir/lib"; fi
    done
   ])

  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
    am_cv_func_iconv="no, consider installing GNU libiconv"
    am_cv_lib_iconv=no
    AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
      [iconv_t cd = iconv_open("","");
       iconv(cd,NULL,NULL,NULL,NULL);
       iconv_close(cd);],
      am_cv_func_iconv=yes)
    if test "$am_cv_func_iconv" != yes; then
      am_save_LIBS="$LIBS"
      LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
      AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
        [iconv_t cd = iconv_open("","");
         iconv(cd,NULL,NULL,NULL,NULL);
         iconv_close(cd);],
        am_cv_lib_iconv=yes
        am_cv_func_iconv=yes)
      LIBS="$am_save_LIBS"
    fi
  ])
  if test "$am_cv_func_iconv" = yes; then
    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
    AC_MSG_CHECKING([for iconv declaration])
    AC_CACHE_VAL(am_cv_proto_iconv, [
      AC_TRY_COMPILE([
#include <stdlib.h>
#include <iconv.h>
extern
#ifdef __cplusplus
"C"
#endif
#if defined(__STDC__) || defined(__cplusplus)
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
#else
size_t iconv();
#endif
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
    AC_MSG_RESULT([$]{ac_t:-
         }[$]am_cv_proto_iconv)
    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
      [Define as const if the declaration of iconv() needs const.])
  fi
  LIBICONV=
  if test "$am_cv_lib_iconv" = yes; then
    LIBICONV="$am_cv_lib_iconv_ldpath -liconv"
  fi
  AC_SUBST(LIBICONV)
])

AC_DEFUN(gcc_AC_INITFINI_ARRAY,
[AC_ARG_ENABLE(initfini-array,
	[  --enable-initfini-array	use .init_array/.fini_array sections],
	[], [
AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
		 gcc_cv_initfini_array, [dnl
  AC_TRY_RUN([
static int x = -1;
int main (void) { return x; }
int foo (void) { x = 0; }
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;],
	     [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
	     [gcc_cv_initfini_array=no])])
  enable_initfini_array=$gcc_cv_initfini_array
])
if test $enable_initfini_array = yes; then
  AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
    [Define .init_array/.fini_array sections are available and working.])
fi])

dnl # _gcc_COMPUTE_GAS_VERSION
dnl # Used by gcc_GAS_VERSION_GTE_IFELSE
dnl #
dnl # WARNING:
dnl # gcc_cv_as_gas_srcdir must be defined before this.
dnl # This gross requirement will go away eventually.
AC_DEFUN([_gcc_COMPUTE_GAS_VERSION],
[gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
for f in $gcc_cv_as_bfd_srcdir/configure \
         $gcc_cv_as_gas_srcdir/configure \
         $gcc_cv_as_gas_srcdir/configure.in \
         $gcc_cv_as_gas_srcdir/Makefile.in ; do
  gcc_cv_gas_version=`grep '^VERSION=[[0-9]]*\.[[0-9]]*' $f`
  if test x$gcc_cv_gas_version != x; then
    break
  fi
done
gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"`
gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"`
gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"`
]) []dnl # _gcc_COMPUTE_GAS_VERSION

dnl # gcc_GAS_VERSION_GTE_IFELSE(major, minor, patchlevel,
dnl #                     [command_if_true = :], [command_if_false = :])
dnl # Check to see if the version of GAS is greater than or
dnl # equal to the specified version.
dnl #
dnl # The first ifelse() shortens the shell code if the patchlevel
dnl # is unimportant (the usual case).  The others handle missing
dnl # commands.  Note that the tests are structured so that the most
dnl # common version number cases are tested first.
AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE],
[AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION]) []dnl
ifelse([$3],[0],
[if test $gcc_cv_gas_major_version -eq $1 \
&& test $gcc_cv_gas_minor_version -ge $2 \
|| test $gcc_cv_gas_major_version -gt $1 ; then
],
[if test $gcc_cv_gas_major_version -eq $1 \
&& (test $gcc_cv_gas_minor_version -gt $2 \
    || (test $gcc_cv_gas_minor_version -eq $2 \
        && test $gcc_cv_gas_patch_version -ge $3 )) \
|| test $gcc_cv_gas_major_version -gt $1 ; then
])
ifelse([$4],[],[:],[$4])
ifelse([$5],[],[],[else $5])
fi
]) []dnl # gcc_GAS_VERSION_GTE_IFELSE