Merge branch 'master' into save_surface-functions

Author: Roberto Di Remigio

CMakeLists.txt

@@ -90,6 +90,7 @@ if(ENABLE_PYTHON_EMBEDDING)
       # Find Pythons libs
       find_package(PythonLibs ${PYTHON_VERSION_STRING} EXACT REQUIRED)
       # Check headers
+      include(CheckIncludeFiles)
       set(CMAKE_REQUIRED_INCLUDES "${PYTHON_INCLUDE_DIRS}")
       check_include_files(Python.h HAS_PYTHON_H)
       check_include_files(pyconfig.h HAS_PYCONFIG_H)