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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 $ac_cv_c_long_long = yes; then
AC_DEFINE(HAVE_LONG_LONG)
fi
])
dnl from autoconf 2.13 acgeneral.m4, with patch:
dnl Date: Fri, 15 Jan 1999 05:52:41 -0800
dnl Message-ID: <199901151352.FAA18237@shade.twinsun.com>
dnl From: eggert@twinsun.com (Paul Eggert)
dnl Subject: autoconf 2.13 AC_CHECK_TYPE doesn't allow shell vars
dnl Newsgroups: gnu.utils.bug
dnl from autoconf 2.13 acspecific.m4, with changes to check for daylight
AC_DEFUN(AC_STRUCT_TIMEZONE_DAYLIGHT,
[AC_REQUIRE([AC_STRUCT_TM])dnl
AC_CACHE_CHECK([for tm_zone in struct tm], ac_cv_struct_tm_zone,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <$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)
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 $ac_cv_var_tzname = yes; then
AC_DEFINE(HAVE_TZNAME)
fi
AC_CACHE_CHECK([for tm_isdst in struct tm], ac_cv_struct_tm_isdst,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <$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 AC_CHECK_TYPE2(TYPE, DEFAULT)
AC_DEFUN(AC_CHECK_TYPE2,
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_type_$1,
[AC_EGREP_CPP(dnl
changequote(<<,>>)dnl
<<(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]>>dnl
changequote([,]), [#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,
[changequote(<<, >>)dnl
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
changequote([, ])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_CHECK_SIZEOF_INCLUDES($1, $2,
[#include <sys/types.h>
#ifdef STDC_HEADERS
#include <stdlib.h>
#endif
])
])
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