SET(LIBRARY_DIR ${ClickHouse_SOURCE_DIR}/contrib/base64) add_library(base64_scalar OBJECT ${LIBRARY_DIR}/turbob64c.c ${LIBRARY_DIR}/turbob64d.c) add_library(base64_ssse3 OBJECT ${LIBRARY_DIR}/turbob64sse.c) # This file also contains code for ARM NEON if (ARCH_AMD64) add_library(base64_avx OBJECT ${LIBRARY_DIR}/turbob64sse.c) # This is not a mistake. One file is compiled twice. add_library(base64_avx2 OBJECT ${LIBRARY_DIR}/turbob64avx2.c) endif () target_compile_options(base64_scalar PRIVATE -falign-loops) if (ARCH_AMD64) target_compile_options(base64_ssse3 PRIVATE -mno-avx -mno-avx2 -mssse3 -falign-loops) target_compile_options(base64_avx PRIVATE -falign-loops -mavx) target_compile_options(base64_avx2 PRIVATE -falign-loops -mavx2) else () target_compile_options(base64_ssse3 PRIVATE -falign-loops) endif () if (ARCH_AMD64) add_library(base64 $ $ $ $) else () add_library(base64 $ $) endif () target_include_directories(base64 SYSTEM PUBLIC ${LIBRARY_DIR}) if (XCODE OR XCODE_VERSION) # https://gitlab.kitware.com/cmake/cmake/issues/17457 # Some native build systems may not like targets that have only object files, so consider adding at least one real source file # This applies to Xcode. if (NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}/dummy.c") file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/dummy.c" "") endif () target_sources(base64 PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/dummy.c") endif ()