Correction for compilation on Linux

diff --git a/src/SketchPlugin/SketchPlugin_Arc.cpp b/src/SketchPlugin/SketchPlugin_Arc.cpp
index e9f1ab084ad39e44fb7600b1fd5a03ed2f15e00c..312297733b333c670c75677006ee0d191e121d0e 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_Arc.cpp
+++ b/src/SketchPlugin/SketchPlugin_Arc.cpp
@@ -20,6 +20,8 @@
 #include <GeomAlgoAPI_PointBuilder.h>
 #include <GeomAlgoAPI_EdgeBuilder.h>
 #include <GeomAlgoAPI_CompoundBuilder.h>
+// for sqrt on Linux
+#include <math.h>
 
 const double tolerance = 1e-7;