diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 66 |
1 files changed, 42 insertions, 24 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 3f4fbdcf..ad55fa47 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -22,13 +22,14 @@ cmake_minimum_required(VERSION 3.5) # Compiler id for Apple Clang is now AppleClang. -if (POLICY CMP0025) - cmake_policy(SET CMP0025 NEW) -endif() +cmake_policy(SET CMP0025 NEW) # if command can use IN_LIST cmake_policy(SET CMP0057 NEW) +# Project version variables are the empty std::string if version is unspecified +cmake_policy(SET CMP0048 NEW) + project(absl) # when absl is included as subproject (i.e. using add_subdirectory(abseil-cpp)) @@ -44,7 +45,7 @@ list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/absl/copts ) -include(GNUInstallDirs) +include(AbseilInstallDirs) include(CMakePackageConfigHelpers) include(AbseilHelpers) @@ -85,6 +86,7 @@ if(${ABSL_RUN_TESTS}) enable_testing() endif() +# absl:lts-remove-begin(system installation is supported for LTS releases) # We don't support system-wide installation list(APPEND SYSTEM_INSTALL_DIRS "/usr/local" "/usr" "/opt/" "/opt/local" "c:/Program Files/${PROJECT_NAME}") if(NOT DEFINED CMAKE_INSTALL_PREFIX OR CMAKE_INSTALL_PREFIX IN_LIST SYSTEM_INSTALL_DIRS) @@ -94,6 +96,7 @@ releases of Abseil. Please set CMAKE_INSTALL_PREFIX to install Abseil in your \ source or build tree directly.\ ") endif() +# absl:lts-remove-end ## check targets if(BUILD_TESTING) @@ -118,25 +121,40 @@ endif() add_subdirectory(absl) -# install as a subdirectory only -install(EXPORT ${PROJECT_NAME}Targets - NAMESPACE absl:: - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" -) - -configure_package_config_file( - CMake/abslConfig.cmake.in - "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" - INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" -) +if (ABSL_ENABLE_INSTALL) + # install as a subdirectory only + install(EXPORT ${PROJECT_NAME}Targets + NAMESPACE absl:: + DESTINATION "${ABSL_INSTALL_CONFIGDIR}" + ) -install(FILES "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" -) + configure_package_config_file( + CMake/abslConfig.cmake.in + "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" + INSTALL_DESTINATION "${ABSL_INSTALL_CONFIGDIR}" + ) + install(FILES "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" + DESTINATION "${ABSL_INSTALL_CONFIGDIR}" + ) -install(DIRECTORY absl - DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} - FILES_MATCHING - PATTERN "*.inc" - PATTERN "*.h" -) + # Abseil only has a version in LTS releases. This mechanism is accomplished + # Abseil's internal Copybara (https://github.com/google/copybara) workflows and + # isn't visible in the CMake buildsystem itself. + if (absl_VERSION) + write_basic_package_version_file( + "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake" + COMPATIBILITY ExactVersion + ) + + install(FILES "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake" + DESTINATION ${ABSL_INSTALL_CONFIGDIR} + ) + endif() # absl_VERSION + + install(DIRECTORY absl + DESTINATION ${ABSL_INSTALL_INCLUDEDIR} + FILES_MATCHING + PATTERN "*.inc" + PATTERN "*.h" + ) +endif() # ABSL_ENABLE_INSTALL |