From f0d9b401c1a70a607073098cdbbfbfe9d493b432 Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Sat, 26 Jan 2019 16:42:32 +0200
Subject: [PATCH] Ignore environment variable if it wasn't resolved.

---
 cfgfile.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cfgfile.cpp b/cfgfile.cpp
index e63df748..9ca3b322 100644
--- a/cfgfile.cpp
+++ b/cfgfile.cpp
@@ -606,6 +606,10 @@ static TCHAR *cfgfile_subst_path2 (const TCHAR *path, const TCHAR *subst, const
 		_tcscat (p, file + l);
 		p2 = target_expand_environment (p, NULL, 0);
 		xfree (p);
+		if (p2 && p2[0] == '$') {
+			xfree(p2);
+			return NULL;
+		}
 		return p2;
 	}
 	return NULL;
-- 
2.47.3