commit 759ef7c4e9662321548d1c30528c78ecdba2a05d
author Dakota Hawkins <dakotahawkins@gmail.com> Tue Jul 24 11:06:55 2018 -0400
committer Dakota Hawkins <dakotahawkins@gmail.com> Tue Aug 21 13:02:09 2018 -0400
tree 8123065767fdd8d9241804f032632573a2522bba
parent b88511ef640c046ec9c7553b383a2aba64c80967

Improve CMake exported targets.

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>

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f8a97fa..db1b289 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -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 @@
 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()