(NULL): Define if not defined.

diff --git a/src/fns.c b/src/fns.c
index 1510930c9c1ddd132c92759a8bc29be7fddae972..d4b3206a082624db6c2a37bad8b70ce4c1deab5e 100644 (file)
--- a/src/fns.c
+++ b/src/fns.c
@@ -32,6 +32,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "keyboard.h"
 #include "intervals.h"
 
+#ifndef NULL
+#define NULL (void *)0
+#endif
+
 extern Lisp_Object Flookup_key ();
 
 Lisp_Object Qstring_lessp, Qprovide, Qrequire;