Fix build

Zeno- · Zeno- · commit d4f42938a567 · 2014-12-01T15:17:47.000+10:00
Note: this does not fix the warnings generated by clang
diff --git a/src/settings.cpp b/src/settings.cpp
@@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "util/serialize.h"
 #include "filesys.h"
 #include <cctype>
+#include <algorithm>
 
 
 Settings::~Settings()
