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-rw-r--r--contrib/file/acinclude.m439
1 files changed, 21 insertions, 18 deletions
diff --git a/contrib/file/acinclude.m4 b/contrib/file/acinclude.m4
index dcbf92f50308..30242712bad3 100644
--- a/contrib/file/acinclude.m4
+++ b/contrib/file/acinclude.m4
@@ -3,8 +3,9 @@ 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 <$ac_cv_struct_tm>], [struct tm tm; tm.tm_zone;],
+[AC_COMPILE_IFELSE(
+[AC_LANG_PROGRAM([#include <sys/types.h>
+#include <$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])
@@ -14,35 +15,36 @@ fi
# consider it declared and we won't give our own extern.
AC_CHECK_DECLS([tzname], , , [#include <time.h>])
AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
-[AC_TRY_LINK(
-[#include <time.h>
-#if !HAVE_DECL_TZNAME
+[AC_LINK_IFELSE(
+[AC_LANG_PROGRAM([#include <time.h>],
+[[#if !HAVE_DECL_TZNAME
extern char *tzname[];
-#endif],
-[return tzname[0][0];], [ac_cv_var_tzname=yes], [ac_cv_var_tzname=no])])
+#endif
+return tzname[0][0];]])], [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_COMPILE_IFELSE(
+[AC_LANG_PROGRAM([#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,1,[HAVE_TM_ISDST])
fi
-AC_CHECK_DECLS([daylight], , , [#include <time.h>])
+AC_CHECK_DECLS([daylight], , , [#include <time.h>
+#include <stdlib.h>])
AC_CACHE_CHECK(for daylight, ac_cv_var_daylight,
-[AC_TRY_LINK(
-changequote(<<, >>)dnl
-<<#include <time.h>
-#if !HAVE_DECL_DAYLIGHT
+[AC_LINK_IFELSE(
+[AC_LANG_PROGRAM([#include <time.h>
+#include <stdlib.h>],
+[#if !HAVE_DECL_DAYLIGHT
extern int daylight;
-#endif>>,
-changequote([, ])dnl
-[atoi(daylight);], ac_cv_var_daylight=yes, ac_cv_var_daylight=no)])
+#endif
+daylight = atoi("1");])], ac_cv_var_daylight=yes, ac_cv_var_daylight=no)])
if test $ac_cv_var_daylight = yes; then
AC_DEFINE(HAVE_DAYLIGHT,1,[HAVE_DAYLIGHT])
fi
@@ -50,7 +52,8 @@ changequote([, ])dnl
AC_DEFUN([AC_STRUCT_OPTION_GETOPT_H],
[AC_CACHE_CHECK([for struct option in getopt], ac_cv_struct_option_getopt_h,
-[AC_TRY_COMPILE([#include <getopt.h>], [struct option op; op.name;],
+[AC_COMPILE_IFELSE(
+[AC_LANG_PROGRAM([#include <getopt.h>], [struct option op; op.name;])],
ac_cv_struct_option_getopt_h=yes, ac_cv_struct_option_getopt_h=no)])
if test "$ac_cv_struct_option_getopt_h" = yes; then
AC_DEFINE(HAVE_STRUCT_OPTION,1,[HAVE_STRUCT_OPTION])