LGTM: [skip ci] fix: Missing header guard

src/Mod/Path/App/PathSegmentWalker.h

@@ -21,6 +21,10 @@
  *                                                                         *
  ***************************************************************************
  */
+
+#ifndef PATHSEGMENTWALKER_H
+#define PATHSEGMENTWALKER_H
+
 #include <Base/Vector3D.h>
 #include <Mod/Path/App/Path.h>
 
@@ -67,3 +71,5 @@ private:
 
 
 }
+
+#endif // PATHSEGMENTWALKER_H

src/Mod/Sketcher/Gui/GeometryCreationMode.h

@@ -20,6 +20,8 @@
  *                                                                         *
  ***************************************************************************/
 
+#ifndef SKETCHERGUI_GEOMETRYCREATIONMODE_H
+#define SKETCHERGUI_GEOMETRYCREATIONMODE_H
 
 /***** Creation Mode ************/
 namespace SketcherGui
@@ -29,3 +31,5 @@ namespace SketcherGui
         Construction
     };
 }
+
+#endif //SKETCHERGUI_GEOMETRYCREATIONMODE_H

src/boost_bind_bind.hpp

@@ -1,3 +1,5 @@
+#ifndef FREECAD_BIND_BIND_HPP_WORKAROUND
+#define FREECAD_BIND_BIND_HPP_WORKAROUND
 
 // Workaround for boost older than 1.60
 #ifndef BOOST_BIND_BIND_HPP_INCLUDED
@@ -19,3 +21,4 @@ namespace boost { namespace placeholders {
 }};
 #endif
 
+#endif // #ifndef FREECAD_BIND_BIND_HPP_WORKAROUND