Added doxygen

CMakeLists.txt

@@ -3,6 +3,11 @@ cmake_minimum_required(VERSION 3.10)
 project(openglu)
 
 set(build_examples ON CACHE BOOL "Build examples")
+set(build_documentation ON CACHE BOOL "Generate documentation")
+
+if(${build_documentation})
+	find_package(Doxygen REQUIRED)
+endif()
 
 if(WIN32)
 	add_compile_definitions(OGLU_WIN32)
@@ -35,6 +40,16 @@ target_include_directories(openglu PUBLIC
 	vendor/include
 )
 
+if(${build_documentation})
+	configure_file(doxyfile.in ${CMAKE_BINARY_DIR}/doxyfile @ONLY)
+    add_custom_target(openglu_doc ALL
+		COMMAND ${DOXYGEN_EXECUTABLE} "${CMAKE_SOURCE_DIR}/doxyfile.in"
+        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+        COMMENT "Building documentation..."
+		VERBATIM
+    )
+endif()
+
 if(${build_examples})
 	macro(subdirlist result curdir)
 		file(GLOB children RELATIVE ${curdir} ${curdir}/*)