fpu.c: Add _GNU_SOURCE definition.

	* runtime/fpu.c: Add _GNU_SOURCE definition.
	* config/fpu-glibc.h: Remove __USE_GNU definition.

From-SVN: r105822

libgfortran/ChangeLog

+2005-10-23  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	* runtime/fpu.c: Add _GNU_SOURCE definition.
+	* config/fpu-glibc.h: Remove __USE_GNU definition.
+
 2005-10-23  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/24384

libgfortran/config/fpu-glibc.h

@@ -33,7 +33,6 @@ Boston, MA 02110-1301, USA.  */
    feenableexcept function in fenv.h to set individual exceptions
    (there's nothing to do that in C99).  */
 
-#define __USE_GNU
 #ifdef HAVE_FENV_H
 #include <fenv.h>
 #endif

libgfortran/runtime/fpu.c

+/* This is needed for fpu-glibc.h, before all other includes */
+#ifdef HAVE_FENV_H
+#define _GNU_SOURCE
+#endif
+
 #include "libgfortran.h"
 
 /* We include the platform-dependent code.  */