PyCore/CMakeLists.txt: add 'swig_runtime.h' to include files and dependency

PyCore/CMakeLists.txt

@@ -14,6 +14,7 @@ set(lib BornAgain${component})
 # Python-dependent source files
 file(GLOB_RECURSE source_files */*.cpp)
 file(GLOB_RECURSE include_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} */*.h)
+list(APPEND include_files "${AUTO_WRAP_DIR}/swig_runtime.h")
 
 # --- define target properties ---
 add_library(${lib} SHARED)
@@ -24,6 +25,10 @@ set_target_properties(${lib} PROPERTIES
     INCLUDE_FILES "${include_files}"
     EMBED_PYTHON ${BORNAGAIN_PYTHON})
 
+if(CONFIGURE_BINDINGS)
+    add_dependencies(${lib} swig_runtime)
+endif(CONFIGURE_BINDINGS)
+
 # --- make the library ---
 MakeLib(${lib})