From 8667899d531225e060db3effe72627b9609017ce Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Sat, 7 Jul 2018 02:31:43 +0200
Subject: [PATCH] hotfix: fixes possible out of bounds access in
 ospaths.joinPath

---
 lib/pure/ospaths.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pure/ospaths.nim b/lib/pure/ospaths.nim
index 96996bba7c..305052e419 100644
--- a/lib/pure/ospaths.nim
+++ b/lib/pure/ospaths.nim
@@ -186,7 +186,7 @@ proc joinPath*(head, tail: string): string {.
   if len(head) == 0:
     result = tail
   elif head[len(head)-1] in {DirSep, AltSep}:
-    if tail[0] in {DirSep, AltSep}:
+    if tail.len > 0 and tail[0] in {DirSep, AltSep}:
       result = head & substr(tail, 1)
     else:
       result = head & tail