freebsd-dev/contrib/file/aclocal.m4

dnl aclocal.m4 generated automatically by aclocal 1.4-p5

dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
dnl PARTICULAR PURPOSE.

dnl cloned from autoconf 2.13 acspecific.m4
AC_DEFUN([AC_C_LONG_LONG],
[AC_CACHE_CHECK(for long long, ac_cv_c_long_long,
[if test "$GCC" = yes; then
  ac_cv_c_long_long=yes
else
AC_TRY_RUN([int main() {
long long foo = 0;
exit(sizeof(long long) < sizeof(long)); }],
ac_cv_c_long_long=yes, ac_cv_c_long_long=no)
fi])
if test $ac_cv_c_long_long = yes; then
  AC_DEFINE(HAVE_LONG_LONG)
fi
])

dnl from autoconf 2.13 acspecific.m4, with changes to check for daylight

AC_DEFUN([AC_STRUCT_TIMEZONE_DAYLIGHT],
[AC_REQUIRE([AC_STRUCT_TM])dnl
AC_CACHE_CHECK([for tm_zone in struct tm], ac_cv_struct_tm_zone,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_zone;],
  ac_cv_struct_tm_zone=yes, ac_cv_struct_tm_zone=no)])
if test "$ac_cv_struct_tm_zone" = yes; then
  AC_DEFINE(HAVE_TM_ZONE,1,[HAVE_TM_ZONE])
fi
AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
[AC_TRY_LINK(
changequote(<<, >>)dnl
<<#include <time.h>
#ifndef tzname /* For SGI.  */
extern char *tzname[]; /* RS6000 and others reject char **tzname.  */
#endif>>,
changequote([, ])dnl
[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
  if test $ac_cv_var_tzname = yes; then
    AC_DEFINE(HAVE_TZNAME,1,[HAVE_TZNAME])
  fi

AC_CACHE_CHECK([for tm_isdst in struct tm], ac_cv_struct_tm_isdst,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_isdst;],
  ac_cv_struct_tm_isdst=yes, ac_cv_struct_tm_isdst=no)])
if test "$ac_cv_struct_tm_isdst" = yes; then
  AC_DEFINE(HAVE_TM_ISDST)
fi
AC_CACHE_CHECK(for daylight, ac_cv_var_daylight,
[AC_TRY_LINK(
changequote(<<, >>)dnl
<<#include <time.h>
#ifndef daylight /* In case IRIX #defines this, too  */
extern int daylight;
#endif>>,
changequote([, ])dnl
[atoi(daylight);], ac_cv_var_daylight=yes, ac_cv_var_daylight=no)])
  if test $ac_cv_var_daylight = yes; then
    AC_DEFINE(HAVE_DAYLIGHT)
  fi
])

dnl from autoconf 2.13 acgeneral.m4, with patch:
dnl Date: Fri, 15 Jan 1999 05:52:41 -0800
dnl Message-ID: <199901151352.FAA18237@shade.twinsun.com>
dnl From: eggert@twinsun.com (Paul Eggert)
dnl Subject: autoconf 2.13 AC_CHECK_TYPE doesn't allow shell vars
dnl Newsgroups: gnu.utils.bug
dnl
dnl now include <stdint.h> if available

dnl AC_CHECK_TYPE2_STDC(TYPE, DEFAULT)
AC_DEFUN([AC_CHECK_TYPE2_STDC],
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_REQUIRE([AC_HEADER_STDINT])dnl
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_type_$1,
[AC_EGREP_CPP(dnl
[(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]],
[#if HAVE_STDINT_H
#include <stdint.h>
#endif
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif], eval "ac_cv_type_$1=yes", eval "ac_cv_type_$1=no")])dnl
if eval "test \"`echo '$ac_cv_type_'$1`\" = yes"; then
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
  AC_DEFINE_UNQUOTED($1, $2)
fi
])

dnl from autoconf 2.13 acgeneral.m4, with additional third argument
dnl AC_CHECK_SIZEOF_INCLUDES(TYPE [, CROSS-SIZE [, INCLUDES]])
AC_DEFUN([AC_CHECK_SIZEOF_INCLUDES],
[dnl The name to #define.
define([AC_TYPE_NAME], translit(sizeof_$1, [[[a-z *]]], [[[A-Z_P]]]))dnl
dnl The cache variable name.
define([AC_CV_NAME], translit(ac_cv_sizeof_$1, [[[ *]]], [[[_p]]]))dnl
AC_MSG_CHECKING(size of $1)
AC_CACHE_VAL(AC_CV_NAME,
[AC_TRY_RUN([$3
#include <stdio.h>
main()
{
  FILE *f=fopen("conftestval", "w");
  if (!f) exit(1);
  fprintf(f, "%d\n", sizeof($1));
  exit(0);
}], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=0, ifelse([$2], , , AC_CV_NAME=$2))])dnl
AC_MSG_RESULT($AC_CV_NAME)
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
])

dnl AC_CHECK_SIZEOF_STDC_HEADERS(TYPE [, CROSS_SIZE])
AC_DEFUN([AC_CHECK_SIZEOF_STDC_HEADERS],
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_REQUIRE([AC_HEADER_STDINT])dnl
AC_CHECK_SIZEOF_INCLUDES($1, $2,
[#if HAVE_STDINT_H
#include <stdint.h>
#endif
#include <sys/types.h>
#ifdef STDC_HEADERS
#include <stdlib.h>
#endif
])
])


dnl AC_CHECK_TYPE_STDC(TYPE, DEFAULT)
AC_DEFUN([AC_CHECK_TYPE_STDC],
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_REQUIRE([AC_HEADER_STDINT])dnl
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_type_$1,
[AC_EGREP_CPP(dnl
[(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]],
[#if HAVE_STDINT_H
#include <stdint.h>
#endif
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif], ac_cv_type_$1=yes, ac_cv_type_$1=no)])dnl
AC_MSG_RESULT($ac_cv_type_$1)
if test $ac_cv_type_$1 = no; then
  AC_DEFINE($1, $2)
fi
])

dnl AC_HEADER_STDINT
AC_DEFUN([AC_HEADER_STDINT], [AC_CHECK_HEADERS(stdint.h)])

#serial 19

dnl By default, many hosts won't let programs access large files;
dnl one must use special compiler options to get large-file access to work.
dnl For more details about this brain damage please see:
dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html

dnl Written by Paul Eggert <eggert@twinsun.com>.

dnl Internal subroutine of AC_SYS_LARGEFILE.
dnl AC_SYS_LARGEFILE_TEST_INCLUDES
AC_DEFUN([AC_SYS_LARGEFILE_TEST_INCLUDES],
  [[#include <sys/types.h>
    /* Check that off_t can represent 2**63 - 1 correctly.
       We can't simply "#define LARGE_OFF_T 9223372036854775807",
       since some C++ compilers masquerading as C compilers
       incorrectly reject 9223372036854775807.  */
#   define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
    int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
			&& LARGE_OFF_T % 2147483647 == 1)
		       ? 1 : -1];
  ]])

dnl Internal subroutine of AC_SYS_LARGEFILE.
dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR, COMMENT, INCLU=
DES, FUNCTION-BODY)
AC_DEFUN([AC_SYS_LARGEFILE_MACRO_VALUE],
  [AC_CACHE_CHECK([for $1 value needed for large files], $3,
     [$3=no
      AC_TRY_COMPILE([$5],
	[$6],
	,
	[AC_TRY_COMPILE([#define $1 $2]
[$5]
	   ,
	   [$6],
	   [$3=$2])])])
   if test "[$]$3" != no; then
     AC_DEFINE_UNQUOTED([$1], [$]$3, [$4])
   fi])

AC_DEFUN([AC_SYS_LARGEFILE],
  [AC_REQUIRE([AC_PROG_CC])
   AC_ARG_ENABLE(largefile,
     [  --disable-largefile     omit support for large files])
   if test "$enable_largefile" != no; then

     AC_CACHE_CHECK([for special C compiler options needed for large files=
],
       ac_cv_sys_largefile_CC,
       [ac_cv_sys_largefile_CC=no
        if test "$GCC" != yes; then
	  # IRIX 6.2 and later do not support large files by default,
	  # so use the C compiler's -n32 option if that helps.
	  AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, , ,
	    [ac_save_CC="$CC"
	     CC="$CC -n32"
	     AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, ,
	       ac_cv_sys_largefile_CC=' -n32')
	     CC="$ac_save_CC"])
        fi])
     if test "$ac_cv_sys_largefile_CC" != no; then
       CC="$CC$ac_cv_sys_largefile_CC"
     fi

     AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
       ac_cv_sys_file_offset_bits,
       [Number of bits in a file offset, on hosts where this is settable.],
       AC_SYS_LARGEFILE_TEST_INCLUDES)
     AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
       ac_cv_sys_large_files,
       [Define for large files, on AIX-style hosts.],
       AC_SYS_LARGEFILE_TEST_INCLUDES)
   fi
  ])

AC_DEFUN([AC_FUNC_FSEEKO],
  [AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
     ac_cv_sys_largefile_source,
     [Define to make fseeko visible on some hosts (e.g. glibc 2.2).],
     [#include <stdio.h>], [return !fseeko;])
   # We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
   # in glibc 2.1.3, but that breaks too many other things.
   # If you want fseeko and ftello with glibc, upgrade to a fixed glibc.

   AC_CACHE_CHECK([for fseeko], ac_cv_func_fseeko,
     [ac_cv_func_fseeko=no
      AC_TRY_LINK([#include <stdio.h>],
        [return fseeko && fseeko (stdin, 0, 0);],
	[ac_cv_func_fseeko=yes])])
   if test $ac_cv_func_fseeko != no; then
     AC_DEFINE(HAVE_FSEEKO, 1,
       [Define if fseeko (and presumably ftello) exists and is declared.])
   fi])


# Do all the work for Automake.  This macro actually does too much --
# some checks are only needed if your package does certain things.
# But this isn't really a big deal.

# serial 1

dnl Usage:
dnl AM_INIT_AUTOMAKE(package,version, [no-define])

AC_DEFUN([AM_INIT_AUTOMAKE],
[AC_REQUIRE([AC_PROG_INSTALL])
PACKAGE=[$1]
AC_SUBST(PACKAGE)
VERSION=[$2]
AC_SUBST(VERSION)
dnl test to see if srcdir already configured
if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
fi
ifelse([$3],,
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
AC_REQUIRE([AM_SANITY_CHECK])
AC_REQUIRE([AC_ARG_PROGRAM])
dnl FIXME This is truly gross.
missing_dir=`cd $ac_aux_dir && pwd`
AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
AC_REQUIRE([AC_PROG_MAKE_SET])])

#
# Check to make sure that the build environment is sane.
#

AC_DEFUN([AM_SANITY_CHECK],
[AC_MSG_CHECKING([whether build environment is sane])
# Just in case
sleep 1
echo timestamp > conftestfile
# Do `set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
   if test "[$]*" = "X"; then
      # -L didn't work.
      set X `ls -t $srcdir/configure conftestfile`
   fi
   if test "[$]*" != "X $srcdir/configure conftestfile" \
      && test "[$]*" != "X conftestfile $srcdir/configure"; then

      # If neither matched, then we have a broken ls.  This can happen
      # if, for instance, CONFIG_SHELL is bash and it inherits a
      # broken ls alias from the environment.  This has actually
      # happened.  Such a system could not be considered "sane".
      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
alias in your environment])
   fi

   test "[$]2" = conftestfile
   )
then
   # Ok.
   :
else
   AC_MSG_ERROR([newly created file is older than distributed files!
Check your system clock])
fi
rm -f conftest*
AC_MSG_RESULT(yes)])

dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
dnl The program must properly implement --version.
AC_DEFUN([AM_MISSING_PROG],
[AC_MSG_CHECKING(for working $2)
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
# Redirect stdin to placate older versions of autoconf.  Sigh.
if ($2 --version) < /dev/null > /dev/null 2>&1; then
   $1=$2
   AC_MSG_RESULT(found)
else
   $1="$3/missing $2"
   AC_MSG_RESULT(missing)
fi
AC_SUBST($1)])

# Like AC_CONFIG_HEADER, but automatically create stamp file.

AC_DEFUN([AM_CONFIG_HEADER],
[AC_PREREQ([2.12])
AC_CONFIG_HEADER([$1])
dnl When config.status generates a header, we must update the stamp-h file.
dnl This file resides in the same directory as the config header
dnl that is generated.  We must strip everything past the first ":",
dnl and everything past the last "/".
AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
<<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
<<am_indx=1
for am_file in <<$1>>; do
  case " <<$>>CONFIG_HEADERS " in
  *" <<$>>am_file "*<<)>>
    echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
    ;;
  esac
  am_indx=`expr "<<$>>am_indx" + 1`
done<<>>dnl>>)
changequote([,]))])

# Define a conditional.

AC_DEFUN([AM_CONDITIONAL],
[AC_SUBST($1_TRUE)
AC_SUBST($1_FALSE)
if $2; then
  $1_TRUE=
  $1_FALSE='#'
else
  $1_TRUE='#'
  $1_FALSE=
fi])