Solaris 2 configuration:
MACHINE     = -DSYSTIME_HAS_NO_TM -DEUC -DGETTIMEOFDAY -DNOBSTRING -DNOINDEX -DSYSV_SYSTEM_DIR

diff -uF^[a-zA-Z_][a-z 	A-Z0-9_]*(.*[^;]$ src/lhext.c.orig src/lhext.c
--- src/lhext.c.orig	Wed Jan 15 18:49:30 1997
+++ src/lhext.c	Sat Oct 17 03:36:52 1998
@@ -126,7 +126,8 @@ open_with_make_path(name)
 {
 	FILE           *fp;
 
-	if ((fp = fopen(name, WRITE_BINARY)) == NULL) {
+	if (name[strlen(name) - 1] == '/' ||
+			(fp = fopen(name, WRITE_BINARY)) == NULL) {
 		errno = 0;
 		if (!make_parent_path(name) ||
 		    (fp = fopen(name, WRITE_BINARY)) == NULL)