Define _GNU_SOURCE in config.h, remove definitions from source files.

git-svn-id: svn://svn.berlios.de/openocd/trunk@1757 b42882b7-edfa-0310-969c-e2dbd0fdcd60

configure.in

@@ -851,6 +851,7 @@ if test "${has_environ}" != "yes" ; then
      AC_MSG_FAILURE([Could not find 'environ' in unistd.h or available libraries.]) 
 fi
 
+AC_DEFINE([_GNU_SOURCE],[1],[Use GNU C library extensions (e.g. stdndup).])
 
 # set default gcc warnings
 GCC_WARNINGS="-Wall -Wstrict-prototypes -Wformat-security"

src/helper/jim.c

@@ -53,9 +53,6 @@
 #define JIM_DYNLIB      /* Dynamic library support for UNIX and WIN32 */
 #endif /* JIM_ANSIC */
 
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE	/* for vasprintf() */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

src/target/oocd_trace.c

@@ -21,11 +21,6 @@
 #include "config.h"
 #endif
 
-// we must define _GNU_SOURCE to get strndup
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
 #include "oocd_trace.h"
 #include "arm7_9_common.h"