ExternalProject_Add(${ZLIB_TARGET}
URL https://www.zlib.net/zlib-1.3.1.tar.gz
URL_HASH SHA256=9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23
DOWNLOAD_DIR ${BUILD_DIR}/download/zlib
PREFIX ${BUILD_DIR}
BUILD_IN_SOURCE 0
BUILD_ALWAYS 0
UPDATE_COMMAND ""
SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/zlib
BINARY_DIR ${BUILD_DIR}/zlib_build
INSTALL_DIR ${CMAKE_INSTALL_PREFIX}
CONFIGURE_COMMAND
${CMAKE_COMMAND}
${CMAKE_CORE_BUILD_FLAGS}
-DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
<SOURCE_DIR>
BUILD_COMMAND $(MAKE) -j${AV_BUILD_DEPENDENCIES_PARALLEL}
)