(dir_name): Use __MSDOS__ in favor of MSDOS.

diff --git a/lib/dirname.c b/lib/dirname.c
index 37f58586196eabcef1e5eea8fe3f418491a135ca..d332b5e4695fe73f54226a748b3fad6729b02141 100644 (file)
--- a/lib/dirname.c
+++ b/lib/dirname.c
@@ -65,7 +65,7 @@ dir_name (const char *path)
   else
     {
       /* Remove any trailing slashes from the result.  */
-#ifdef MSDOS
+#ifdef __MSDOS__
       const char *lim = ((path[0] >= 'A' && path[0] <= 'z' && path[1] == ':')
                         ? path + 2 : path);