if(USE_SYSTEM_WOLFSSL)
	message("-- RPCS3: using shared wolfssl")
	pkg_check_modules(WolfSSL REQUIRED IMPORTED_TARGET wolfssl>=4.7.0)
	add_library(wolfssl INTERFACE)
	target_link_libraries(wolfssl INTERFACE PkgConfig::WolfSSL)
else()
	# TODO(cjj19970505@live.cn)
	# OPENSSL_EXTRA, WOLFSSL_DES_ECB and HAVE_SNI are unconfigurable from CMake cache.
	# but they do have it in a TODO list (wolfssl/CMakeList, 1021)
	add_compile_definitions(OPENSSL_EXTRA WOLFSSL_DES_ECB HAVE_SNI)

	set(WOLFSSL_TLS13 "no" CACHE INTERNAL "")
	set(WOLFSSL_SHA224 "yes" CACHE INTERNAL "")
	set(WOLFSSL_SHA3 "yes" CACHE INTERNAL "")
	set(WOLFSSL_SHAKE256 "yes" CACHE INTERNAL "")
	set(WOLFSSL_BASE64_ENCODE "no" CACHE INTERNAL "")
	set(WOLFSSL_DES3 "yes" CACHE INTERNAL "")
	set(WOLFSSL_POLY1305 "yes" CACHE INTERNAL "")
	set(WOLFSSL_CHACHA "yes" CACHE INTERNAL "")
	set(WOLFSSL_FILESYSTEM "yes" CACHE INTERNAL "")
	set(WOLFSSL_PWDBASED "yes" CACHE INTERNAL "")
	set(WOLFSSL_FAST_MATH "no" CACHE INTERNAL "")
	set(WOLFSSL_EXAMPLES "no" CACHE INTERNAL "")
	set(WOLFSSL_CRYPT_TESTS "no" CACHE INTERNAL "")
	set(WOLFSSL_ASYNC_THREADS "no" CACHE INTERNAL "")
	set(WOLFSSL_CONFIG_H "no" CACHE INTERNAL "")

	add_subdirectory(wolfssl EXCLUDE_FROM_ALL)

	# TODO(cjj19970505@live.cn)
	# This only works in single-config generator
	# For a multi-config generator, we need to provide different wolfssl binaries for different config
	if (GENERATOR_IS_MULTI_CONFIG)
		message( FATAL_ERROR "RPCS3 can only be configured using single-config generator." )
	endif()

	if(MSVC)
		set(WolfSSL_LIBRARY "${CMAKE_CURRENT_BINARY_DIR}/wolfssl/${CMAKE_BUILD_TYPE}/wolfssl.lib" CACHE INTERNAL "")
	else()
		set(WolfSSL_LIBRARY "${CMAKE_CURRENT_BINARY_DIR}/wolfssl/libwolfssl.a" CACHE INTERNAL "")
	endif()

	# "${CMAKE_CURRENT_SOURCE_DIR}/wolfssl/wolfssl/" provides openssl headers
	# So that curl can be built on an environment where openssl headers are not provided
	set(WolfSSL_INCLUDE_DIR
		"${CMAKE_CURRENT_SOURCE_DIR}/wolfssl/"
		"${CMAKE_CURRENT_SOURCE_DIR}/wolfssl/wolfssl/"
		"${CMAKE_CURRENT_BINARY_DIR}/wolfssl/"
		CACHE INTERNAL "")
endif()