From 35ebc5cf90670c92f1676a0d4f1ae3419e90cbed Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Tue, 7 Jun 1994 15:19:33 +0000
Subject: [PATCH] (rootrelativepath) [MSDOS]: Define, expanding to dynamic
 location of data directory.

---
 lib-src/yow.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib-src/yow.c b/lib-src/yow.c
index cbcf9f4c84c..0f289a19358 100644
--- a/lib-src/yow.c
+++ b/lib-src/yow.c
@@ -18,6 +18,18 @@
 #define YOW_FILE "yow.lines"
 #endif
 
+#ifdef MSDOS
+#define rootrelativepath(rel) \
+({\
+    static char res[BUFSIZE], *p;\
+    strcpy (res, argv[0]);\
+    p = res + strlen (res);\
+    while (p != res && *p != '/' && *p != '\\' && *p != ':') p--;\
+    strcpy (p + 1, "../");\
+    strcpy (p + 4, rel);\
+    &res;})
+#endif
+
 main (argc, argv)
      int argc;
      char *argv[];
-- 
2.39.5