b64.cmake

#
# libb64
#
option(USE_BUNDLED_B64 "Enable building of the bundled b64" ${USE_BUNDLED_DEPS})

if(B64_INCLUDE)
	# we already have b64
elseif(NOT USE_BUNDLED_B64)
	find_path(B64_INCLUDE NAMES b64/encode.h)
	find_library(B64_LIB NAMES b64)
	if(B64_INCLUDE AND B64_LIB)
		message(STATUS "Found b64: include: ${B64_INCLUDE}, lib: ${B64_LIB}")
	else()
		message(FATAL_ERROR "Couldn't find system b64")
	endif()
else()
	set(B64_SRC "${PROJECT_BINARY_DIR}/b64-prefix/src/b64")
	message(STATUS "Using bundled b64 in '${B64_SRC}'")
	set(B64_INCLUDE "${B64_SRC}/include/")
	set(B64_LIB "${B64_SRC}/src/libb64.a")
	ExternalProject_Add(b64
		PREFIX "${PROJECT_BINARY_DIR}/b64-prefix"
		URL "https://github.com/libb64/libb64/archive/v1.4.1.tar.gz"
		URL_HASH "SHA256=0fa93fb9c4fb72cac5a21533e6d611521e4326f42c19cc23f8ded814b0eca071"
		CONFIGURE_COMMAND ""
                BUILD_COMMAND ${CMAKE_MAKE_PROGRAM} all_base64 # do not build examples (see https://github.com/falcosecurity/libs/issues/57)
		BUILD_IN_SOURCE 1
		BUILD_BYPRODUCTS ${B64_LIB}
		INSTALL_COMMAND "")
	install(FILES "${B64_LIB}" DESTINATION "${CMAKE_INSTALL_LIBDIR}/${LIBS_PACKAGE_NAME}"
			COMPONENT "libs-deps")
	install(DIRECTORY "${B64_INCLUDE}" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${LIBS_PACKAGE_NAME}"
			COMPONENT "libs-deps")
endif()

if(NOT TARGET b64)
	add_custom_target(b64)
endif()

include_directories("${B64_INCLUDE}")