--- sublist.c.orig	Sat Oct 19 06:00:32 1996
+++ sublist.c	Sat Jan 31 10:55:57 1998
@@ -23,7 +23,7 @@
 #define regcmp re_comp
 #define regex re_exec
 #endif
-#ifdef linux
+#if defined(linux) || defined(POSIX_REGEX)
 #define regcmp regcomp
 #define regex regexec
 #endif