- Fix building on OpenBSD/sparc64

Index: grparser.c
--- grparser.c.orig
+++ grparser.c
@@ -70,7 +70,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#ifdef sparc
+#if defined(__sparc) && defined(__sun) && defined(__SVR4)
 #include <malloc.h>
 #include <memory.h>
 #endif
