X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Frintl.m4;h=b6a0d63f83be86a0944ed58cad9f1a6a85f92a93;hb=46f5f314f34a08c9305758482d7d2fdb0e999d09;hp=bb88ee80630df5e28cf51efdc5b3a72495ec9f5c;hpb=11368c16b7faaff172abbfd8b25303389c7031e5;p=gnulib.git

diff --git a/m4/rintl.m4 b/m4/rintl.m4
index bb88ee806..b6a0d63f8 100644
--- a/m4/rintl.m4
+++ b/m4/rintl.m4
@@ -1,5 +1,5 @@
-# rintl.m4 serial 3
-dnl Copyright (C) 2011 Free Software Foundation, Inc.
+# rintl.m4 serial 4
+dnl Copyright (C) 2011-2014 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.
@@ -9,6 +9,9 @@ AC_DEFUN([gl_FUNC_RINTL],
   AC_REQUIRE([gl_MATH_H_DEFAULTS])
   AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
 
+  dnl Persuade glibc <math.h> to declare rintl().
+  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
   dnl Determine RINTL_LIBM.
   gl_MATHFUNC([rintl], [long double], [(long double)])
   if test $gl_cv_func_rintl_no_libm = no \