common.cmake

macro(listsubdir result curdir)
	file(GLOB children RELATIVE ${curdir} ${curdir}/*)
	set(dirs "")
	foreach(child ${children})
		if(IS_DIRECTORY ${curdir}/${child} AND EXISTS ${curdir}/${child}/CMakeLists.txt)
			list(APPEND dirs ${child})
		endif()
	endforeach()
	set(${result} ${dirs})
endmacro()

macro(use_cxx11)
	if (CMAKE_VERSION VERSION_LESS "3.1")
		if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
			set (CMAKE_CXX_FLAGS "--std=gnu++11 ${CMAKE_CXX_FLAGS}")
		else ()
			set (CMAKE_CXX_FLAGS "--std=c++11 ${CMAKE_CXX_FLAGS}")
		endif ()
	else ()
		set (CMAKE_CXX_STANDARD 11)
	endif ()
endmacro(use_cxx11)

macro(write_cpp_file filepath content)
	if(NOT EXISTS ${filepath})
		message(STATUS "write file: ${filepath}")
		file(WRITE ${filepath} ${content})
	else()
		file(READ ${filepath} ORIGIN_CONTENT)
		if(NOT ${content} STREQUAL ${ORIGIN_CONTENT})
			message(STATUS "write file: ${filepath}")
			file(WRITE ${filepath} ${content})
		endif()
	endif()
endmacro()

macro(auto_generate_title)
	# 自动生成title.h文件
	set(TITLE_FILE "${CMAKE_CURRENT_LIST_DIR}/title.h")
	set(TITLE_CONTENT "//this file is auto generated by cmake\n#define APP_TITLE \"${CURRENT_DIR_NAME}\"\n")
	write_cpp_file(${TITLE_FILE} ${TITLE_CONTENT})
endmacro()