From f581a6491f93f82729339bc639b4ffa50993abed Mon Sep 17 00:00:00 2001
From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Tue, 14 Jun 2011 12:46:36 +0200
Subject: [PATCH] Fix empty-string option values in XBoard

---
 xboard.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/xboard.c b/xboard.c
index 44fcb80..8198376 100644
--- a/xboard.c
+++ b/xboard.c
@@ -1647,7 +1647,7 @@ ConvertToLine(int argc, char **argv)
   line[0] = NULLCHAR;
   for(i=1; i<argc; i++)
     {
-      if( (strchr(argv[i], ' ') || strchr(argv[i], '\n') ||strchr(argv[i], '\t') )
+      if( (strchr(argv[i], ' ') || strchr(argv[i], '\n') ||strchr(argv[i], '\t') || argv[i][0] == NULLCHAR)
 	  && argv[i][0] != '{' )
 	snprintf(buf, sizeof(buf)/sizeof(buf[0]), "{%s} ", argv[i]);
       else
-- 
1.7.0.4