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Improve CMake exported targets.

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I _think_ this represents some of the "best practices" for exporting
targets. They'll be available in a `googletest::` namespace (e.g.
`googletest::gmock`) with non-namespaced `ALIAS` targets.

- Added GOOGLETEST_VERSION variable
- Use `CMakePackageConfigHelpers`, bump minimum CMake version to 2.8.8

Signed-off-by: Dakota Hawkins <dakotahawkins@gmail.com>
This commit is contained in:
Dakota Hawkins
2018-07-24 11:06:55 -04:00
parent b88511ef64
commit 759ef7c4e9
4 changed files with 122 additions and 20 deletions
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37
CMakeLists.txt
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@@ -1,22 +1,16 @@
cmake_minimum_required(VERSION 2.6.4)
cmake_minimum_required(VERSION 2.8.8)
if (POLICY CMP0048)
cmake_policy(SET CMP0048 NEW)
endif (POLICY CMP0048)
project( googletest-distribution )
project(googletest-distribution)
set(GOOGLETEST_VERSION 1.9.0)
enable_testing()
include(CMakeDependentOption)
if (CMAKE_VERSION VERSION_LESS 2.8.5)
set(CMAKE_INSTALL_BINDIR "bin" CACHE STRING "User executables (bin)")
set(CMAKE_INSTALL_LIBDIR "lib${LIB_SUFFIX}" CACHE STRING "Object code libraries (lib)")
set(CMAKE_INSTALL_INCLUDEDIR "include" CACHE STRING "C header files (include)")
mark_as_advanced(CMAKE_INSTALL_BINDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_INCLUDEDIR)
else()
include(GNUInstallDirs)
endif()
include(GNUInstallDirs)
option(BUILD_GTEST "Builds the googletest subproject" OFF)
@@ -26,8 +20,31 @@ option(BUILD_GMOCK "Builds the googlemock subproject" ON)
cmake_dependent_option(INSTALL_GTEST "Enable installation of googletest. (Projects embedding googletest may want to turn this OFF.)" ON "BUILD_GTEST OR BUILD_GMOCK" OFF)
cmake_dependent_option(INSTALL_GMOCK "Enable installation of googlemock. (Projects embedding googlemock may want to turn this OFF.)" ON "BUILD_GMOCK" OFF)
if(WIN32)
set(INSTALL_CMAKE_DIR "cmake" CACHE PATH "CMake exported targets")
else()
set(INSTALL_CMAKE_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/gtest" CACHE PATH "CMake exported targets")
endif()
set(googletest_install_targets)
if(BUILD_GMOCK)
add_subdirectory( googlemock )
elseif(BUILD_GTEST)
add_subdirectory( googletest )
endif()
if(googletest_install_targets)
include(CMakePackageConfigHelpers)
configure_package_config_file(
"${CMAKE_CURRENT_LIST_DIR}/cmake/googletestConfig.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/googletestConfig.cmake"
INSTALL_DESTINATION "${INSTALL_CMAKE_DIR}")
write_basic_package_version_file(
${CMAKE_CURRENT_BINARY_DIR}/googletestConfigVersion.cmake
VERSION "${GOOGLETEST_VERSION}"
COMPATIBILITY SameMajorVersion)
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/googletestConfig.cmake
${CMAKE_CURRENT_BINARY_DIR}/googletestConfigVersion.cmake
DESTINATION "${INSTALL_CMAKE_DIR}")
endif()