Author: Holger Jaekel <holger.jaekel@gmx.de>
Summary: Fixes compilation with musl libc, define PATH_MAX
----

--- a/mapshape.c
+++ b/mapshape.c
@@ -34,6 +34,7 @@
  * DEALINGS IN THE SOFTWARE.
  ****************************************************************************/
 
+#define _GNU_SOURCE
 #include <limits.h>
 #include <assert.h>
 #include "mapserver.h"