--- fig2dev/fig2dev.h.~1~	Thu Feb 12 08:13:01 1998
+++ fig2dev/fig2dev.h	Tue Jan 19 11:04:53 1999
@@ -163,6 +163,10 @@
 #endif /* MAXPATHLEN */
 #endif /* PATH_MAX */
 
+#if (defined(__unix__) || defined(unix)) && !defined(USG)
+#include <sys/param.h>
+#endif
+
 #ifndef __NetBSD__
 extern int		sys_nerr, errno;
 #endif