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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.7)
project(zstd_vendor)
find_package(ament_cmake REQUIRED)
list(INSERT CMAKE_MODULE_PATH 0 "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
option(FORCE_BUILD_VENDOR_PKG
"Build zstd from source, even if system-installed package is available"
OFF)
if(NOT FORCE_BUILD_VENDOR_PKG)
# We need at least VERSION 1.4.8, version check is done in Findzstd.cmake
find_package(zstd 1.4.8 QUIET)
endif()
macro(build_zstd)
set(extra_cmake_args)
if(DEFINED CMAKE_BUILD_TYPE)
list(APPEND extra_cmake_args -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE})
endif()
if(DEFINED CMAKE_TOOLCHAIN_FILE)
list(APPEND extra_cmake_args "-DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}")
else()
list(APPEND extra_cmake_args "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}")
endif()
list(APPEND extra_cmake_args "-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}")
set(zstd_version 1.4.8)
include(ExternalProject)
# The CMakeLists.txt file for zstd is in a subdirectory.
# We need to configure the CMake command to build from there instead.
externalproject_add(zstd-${zstd_version}
GIT_REPOSITORY https://github.com/facebook/zstd.git
GIT_TAG 97a3da1df009d4dc67251de0c4b1c9d7fe286fc1 # v1.4.8
GIT_CONFIG advice.detachedHead=false
# Suppress git update due to https://gitlab.kitware.com/cmake/cmake/-/issues/16419
# See https://github.com/ament/uncrustify_vendor/pull/22 for details
UPDATE_COMMAND ""
TIMEOUT 60
SOURCE_SUBDIR build/cmake
CMAKE_ARGS
-DCMAKE_INSTALL_PREFIX=${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_install
-DZSTD_BUILD_STATIC=OFF
-DZSTD_BUILD_SHARED=ON
-DZSTD_BUILD_PROGRAMS=OFF
${extra_cmake_args}
)
install(
DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_install/
DESTINATION ${CMAKE_INSTALL_PREFIX}
USE_SOURCE_PERMISSIONS)
endmacro()
if(NOT zstd_FOUND)
build_zstd()
else()
message(STATUS "Found Zstd, skipping build.")
endif()
install(DIRECTORY cmake DESTINATION share/${PROJECT_NAME})
ament_package(CONFIG_EXTRAS zstd_vendor-extras.cmake)