PreCompiled fix

Preventive action to avoid problems with MSVC.

src/Mod/Import/App/CMakeLists.txt

@@ -12,6 +12,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${CMAKE_CURRENT_SOURCE_DIR}
 )
 
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Import/App/dxf/ImpExpDxf.cpp

@@ -20,7 +20,7 @@
  *                                                                         *
  ***************************************************************************/
 
-#include "../PreCompiled.h"
+#include "PreCompiled.h"
 
 #ifndef _PreComp_
 #endif

src/Mod/Import/App/dxf/dxf.cpp

@@ -3,7 +3,7 @@
 // This program is released under the BSD license. See the file COPYING for details.
 // modified 2018 wandererfan
 
-#include "../PreCompiled.h"
+#include "PreCompiled.h"
 
 //required by windows for M_PI definition
 #define _USE_MATH_DEFINES