Yet more signed overflow fixes

[deliverable/binutils-gdb.git] / libiberty / floatformat.c

diff --git a/libiberty/floatformat.c b/libiberty/floatformat.c
index 789fa05777dd3dc36b799e17cad1b91a228062ef..8632253b4c14f4341384c814db8dc48d9de0f683 100644 (file)
--- a/libiberty/floatformat.c
+++ b/libiberty/floatformat.c
@@ -1,6 +1,5 @@
 /* IEEE floating point support routines, for GDB, the GNU Debugger.
-   Copyright 1991, 1994, 1999, 2000, 2003, 2005, 2006, 2010, 2012
-   Free Software Foundation, Inc.
+   Copyright (C) 1991-2019 Free Software Foundation, Inc.
 
 This file is part of GDB.
 
@@ -19,7 +18,9 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* This is needed to pick up the NAN macro on some systems.  */
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#endif
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -488,7 +489,7 @@ floatformat_to_double (const struct floatformat *fmt,
       int nan = mant_bits_set (fmt, ufrom);
 
       /* On certain systems (such as GNU/Linux), the use of the
-        INFINITY macro below may generate a warning that can not be
+        INFINITY macro below may generate a warning that cannot be
         silenced due to a bug in GCC (PR preprocessor/11931).  The
         preprocessor fails to recognise the __extension__ keyword in
         conjunction with the GNU/C99 extension for hexadecimal