CPMAddPackage( NAME ZLIB VERSION 1.2.13 URL "https://github.com/madler/zlib/archive/refs/tags/v1.2.13.zip" EXCLUDE_FROM_ALL DOWNLOAD_ONLY YES ) if(ZLIB_ADDED) set(ZLIB_SRCS crc32.h deflate.h gzguts.h inffast.h inffixed.h inflate.h inftrees.h trees.h zutil.h adler32.c compress.c crc32.c deflate.c gzclose.c gzlib.c gzread.c gzwrite.c inflate.c infback.c inftrees.c inffast.c trees.c uncompr.c zutil.c ) list(TRANSFORM ZLIB_SRCS PREPEND "${ZLIB_SOURCE_DIR}/") configure_file("${ZLIB_SOURCE_DIR}/zlib.pc.cmakein" "${ZLIB_BINARY_DIR}/zlib.pc" @ONLY) configure_file("${ZLIB_SOURCE_DIR}/zconf.h.cmakein" "${ZLIB_BINARY_DIR}/include/zconf.h" @ONLY) configure_file("${ZLIB_SOURCE_DIR}/zlib.h" "${ZLIB_BINARY_DIR}/include/zlib.h" @ONLY) add_library(ZLIB ${SRB2_INTERNAL_LIBRARY_TYPE} ${ZLIB_SRCS}) set_target_properties(ZLIB PROPERTIES VERSION 1.2.13 OUTPUT_NAME "z" ) target_include_directories(ZLIB PRIVATE "${ZLIB_SOURCE_DIR}") target_include_directories(ZLIB PUBLIC "${ZLIB_BINARY_DIR}/include") if(MSVC) target_compile_definitions(ZLIB PRIVATE -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE) endif() add_library(ZLIB::ZLIB ALIAS ZLIB) endif()