gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / m4 / exponentl.m4

diff --git a/m4/exponentl.m4 b/m4/exponentl.m4
index 59b77eb..f877cf1 100644 (file)
--- a/m4/exponentl.m4
+++ b/m4/exponentl.m4
@@ -1,15 +1,16 @@
-# exponentl.m4 serial 1
-dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
+# exponentl.m4 serial 3
+dnl Copyright (C) 2007-2013 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.
 AC_DEFUN([gl_LONG_DOUBLE_EXPONENT_LOCATION],
 [
-  AC_REQUIRE([AC_C_BIGENDIAN])
+  AC_REQUIRE([gl_BIGENDIAN])
   AC_CACHE_CHECK([where to find the exponent in a 'long double'],
     [gl_cv_cc_long_double_expbit0],
     [
-      AC_TRY_RUN([
+      AC_RUN_IFELSE(
+        [AC_LANG_SOURCE([[
 #include <float.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -74,7 +75,7 @@ int main ()
   fprintf (fp, "unknown");
   return (fclose (fp) != 0);
 }
-        ],
+        ]])],
         [gl_cv_cc_long_double_expbit0=`cat conftest.out`],
         [gl_cv_cc_long_double_expbit0="unknown"],
         [