--- a/qmake/option.cpp	Fri Feb 19 23:40:16 2010 +0200
+++ b/qmake/option.cpp	Fri Mar 12 15:46:37 2010 +0200
@@ -634,8 +634,8 @@
         string = string.replace('/', Option::dir_sep).replace('\\', Option::dir_sep);
     }
 
-    if (string.startsWith("\"") && string.endsWith("\"") ||
-        string.startsWith("\'") && string.endsWith("\'"))
+    if ((string.startsWith("\"") && string.endsWith("\"")) ||
+        (string.startsWith("\'") && string.endsWith("\'")))
         string = string.mid(1, string.length()-2);
 
     //cache