--- lin.c.orig	Tue Dec 21 03:58:46 1999
+++ lin.c	Mon Jun 19 21:57:26 2000
@@ -161,7 +161,7 @@
    "PC matrix is singular"};
 
 
-#ifdef __convexc__
+#if defined(__convexc__) || defined(__STDC__)
 #include <stdlib.h>
 #else
 #include <malloc.h>