From be486008c26347f368f3951fa1ddd0224156e7f1 Mon Sep 17 00:00:00 2001
From: stanton <stanton>
Date: Wed, 17 Jun 1998 18:19:11 +0000
Subject: fixed behavior of Tcl_FindExecutable on null path elements

---
 unix/tclUnixFile.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/unix/tclUnixFile.c b/unix/tclUnixFile.c
index 7f9644b..86f3d33 100644
--- a/unix/tclUnixFile.c
+++ b/unix/tclUnixFile.c
@@ -254,6 +254,12 @@ Tcl_FindExecutable(argv0)
 	 */
 
 	p = ":/bin:/usr/bin";
+    } else if (*p == '\0') {
+	/*
+	 * An empty path is equivalent to ".".
+	 */
+
+	p = "./";
     }
 
     /*
@@ -286,8 +292,11 @@ Tcl_FindExecutable(argv0)
 	}
 	if (*p == 0) {
 	    break;
+	} else if (*(p+1) == 0) {
+	    p = "./";
+	} else {
+	    p++;
 	}
-	p++;
     }
     goto done;
 
-- 
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