From fc2aa82cc3f07f008df118386cda09eba30409f1 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 21 Sep 2015 23:42:18 +0200
Subject: [PATCH] + fix build failure

---
 src/Mod/Sketcher/App/Constraint.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Mod/Sketcher/App/Constraint.cpp b/src/Mod/Sketcher/App/Constraint.cpp
index b808adf6cb..33bfb6801c 100644
--- a/src/Mod/Sketcher/App/Constraint.cpp
+++ b/src/Mod/Sketcher/App/Constraint.cpp
@@ -23,6 +23,7 @@
 
 #include "PreCompiled.h"
 #ifndef _PreComp_
+# include <cmath>
 #endif
 
 #include <Base/Writer.h>