X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=m4%2Fprintf-frexp.m4;h=8b373b1910192408e099a3388c40f8a733e6636e;hb=db56e4b64faab661f153c0e6a2f9239edd955b0c;hp=fa0aa1583baca3efa0f14877743006ad38e0ec22;hpb=c7e61475680fa226bd9b8bdd469cd66914e630f5;p=debian%2Fgzip

diff --git a/m4/printf-frexp.m4 b/m4/printf-frexp.m4
index fa0aa15..8b373b1 100644
--- a/m4/printf-frexp.m4
+++ b/m4/printf-frexp.m4
@@ -1,5 +1,5 @@
-# printf-frexp.m4 serial 3
-dnl Copyright (C) 2007, 2009 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.
@@ -8,16 +8,7 @@ dnl Check how to define printf_frexp() without linking with libm.
 
 AC_DEFUN([gl_FUNC_PRINTF_FREXP],
 [
-  AC_CACHE_CHECK([whether frexp can be used without linking with libm],
-    [gl_cv_func_frexp_no_libm],
-    [
-      AC_TRY_LINK([#include <math.h>
-                   double x;
-                   int y;],
-                  [return frexp (x, &y) < 1;],
-        [gl_cv_func_frexp_no_libm=yes],
-        [gl_cv_func_frexp_no_libm=no])
-    ])
+  AC_REQUIRE([gl_CHECK_FREXP_NO_LIBM])
   if test $gl_cv_func_frexp_no_libm = yes; then
     gl_FUNC_FREXP_WORKS
     case "$gl_cv_func_frexp_works" in
@@ -31,10 +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])
     ])