cmake: update handling of public namespace headers

cmake/Templates.cmake

@@ -18,10 +18,12 @@ function(add_fx_assembly)
 
 	set(assembly_include_paths "")
 	set(assembly_sources ${CMAKE_CURRENT_SOURCE_DIR}/assembly.c)
+	set(assembly_headers)
 
 	foreach (dir ${arg_NAMESPACES})
 		add_subdirectory(${fx_source_root}/${dir} ${fx_build_root}/namespaces/${dir})
 		set(assembly_sources ${assembly_sources} ${namespace_sources})
+		set(assembly_headers ${assembly_headers} ${namespace_headers})
 		set(assembly_include_paths ${assembly_include_paths} ${namespace_include_paths})
 	endforeach (dir)
 
@@ -86,6 +88,7 @@ macro(export_fx_namespace_details ns_name)
 		${CMAKE_CURRENT_SOURCE_DIR}/sys/${fx_system_name}/${fx_system_arch}/*.h
 		${CMAKE_CURRENT_SOURCE_DIR}/sys/${fx_system_name}/${fx_system_arch}/*.S)
 	file(GLOB headers include/${namespace_path}/*.h)
+	set(namespace_headers ${headers} PARENT_SCOPE)
 	set(namespace_sources
 		${namespace_sources}
 		${base_namespace_sources}
@@ -100,5 +103,6 @@ macro(export_fx_namespace_details ns_name)
 		PARENT_SCOPE)
 	set(internal_libs ${internal_libs} PARENT_SCOPE)
 	set(internal_defines ${internal_defines} PARENT_SCOPE)
+	install(FILES ${headers} DESTINATION include/${namespace_path})
 endmacro(export_fx_namespace_details)