md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT

[gnulib.git] / m4 / printf-frexp.m4

diff --git a/m4/printf-frexp.m4 b/m4/printf-frexp.m4
index 009ee26..8b373b1 100644 (file)
--- a/m4/printf-frexp.m4
+++ b/m4/printf-frexp.m4
@@ -1,5 +1,5 @@
-# printf-frexp.m4 serial 4
-dnl Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc.
+# printf-frexp.m4 serial 5
+dnl Copyright (C) 2007, 2009-2013 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.
@@ -22,10 +22,12 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXP],
   AC_CACHE_CHECK([whether ldexp can be used without linking with libm],
     [gl_cv_func_ldexp_no_libm],
     [
-      AC_TRY_LINK([#include <math.h>
-                   double x;
-                   int y;],
-                  [return ldexp (x, y) < 1;],
+      AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM(
+           [[#include <math.h>
+             double x;
+             int y;]],
+           [[return ldexp (x, y) < 1;]])],
         [gl_cv_func_ldexp_no_libm=yes],
         [gl_cv_func_ldexp_no_libm=no])
     ])