commit 2a91ee850a5ebb205c8036805932e6ff1cb4e3a1
author Louis Dionne <ldionne@apple.com> Tue Apr 09 18:35:56 2019 +0000
committer Copybara-Service <copybara-worker@google.com> Tue Sep 01 14:41:30 2020 -0700
tree 6851a04c876943a8a1a4ea5ea2daf3841d185316
parent 273395741515d6c2705b835b662139df6e677bfa

[pstl][CMake] Install CMake export files

This allows other projects to depend on PSTL using the classic CMake
find_package protocol.

llvm-svn: 358028
GitOrigin-RevId: f7433f9623533d7901fa1f0eb3bf0aaebbbbd73d

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b6733bc..f4b14f7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,9 @@
     endif()
 endif()
 
+###############################################################################
+# Setup the ParallelSTL library target
+###############################################################################
 add_library(ParallelSTL INTERFACE)
 add_library(pstl::ParallelSTL ALIAS ParallelSTL)
 target_compile_features(ParallelSTL INTERFACE cxx_std_17)
@@ -55,19 +58,34 @@
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
     $<INSTALL_INTERFACE:include>)
 
-include(CMakePackageConfigHelpers)
-write_basic_package_version_file(
-    ${CMAKE_CURRENT_BINARY_DIR}/ParallelSTLConfigVersion.cmake
-    VERSION ${PROJECT_VERSION}
-    COMPATIBILITY AnyNewerVersion)
-
-configure_file(
-    cmake/ParallelSTLConfig.cmake.in
-    ${CMAKE_CURRENT_BINARY_DIR}/ParallelSTLConfig.cmake
-    @ONLY)
-
-export(TARGETS ParallelSTL NAMESPACE pstl:: FILE ParallelSTLTargets.cmake)
-export(PACKAGE ParallelSTL)
-
+###############################################################################
+# Setup tests
+###############################################################################
 enable_testing()
 add_subdirectory(test)
+
+###############################################################################
+# Install the target and the associated CMake files
+###############################################################################
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/ParallelSTLConfigVersion.cmake"
+                                 COMPATIBILITY ExactVersion)
+
+configure_file(cmake/ParallelSTLConfig.cmake.in
+               "${CMAKE_CURRENT_BINARY_DIR}/ParallelSTLConfig.cmake"
+               @ONLY)
+
+install(TARGETS ParallelSTL
+        EXPORT ParallelSTLTargets)
+install(EXPORT ParallelSTLTargets
+        FILE ParallelSTLTargets.cmake
+        NAMESPACE pstl::
+        DESTINATION lib/cmake/ParallelSTL)
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/ParallelSTLConfig.cmake"
+              "${CMAKE_CURRENT_BINARY_DIR}/ParallelSTLConfigVersion.cmake"
+        DESTINATION lib/cmake/ParallelSTL)
+install(DIRECTORY include/pstl
+        DESTINATION include)
+
+add_custom_target(install-pstl
+                  COMMAND "${CMAKE_COMMAND}" -P "${PROJECT_BINARY_DIR}/cmake_install.cmake" -DCOMPONENT=ParallelSTL)

cmake/ParallelSTLConfig.cmake.in

diff --git a/cmake/ParallelSTLConfig.cmake.in b/cmake/ParallelSTLConfig.cmake.in
index 5beb8f2..516c812 100644
--- a/cmake/ParallelSTLConfig.cmake.in
+++ b/cmake/ParallelSTLConfig.cmake.in
@@ -10,8 +10,10 @@
 
 set(PARALLELSTL_BACKEND "@PARALLELSTL_BACKEND@")
 
-if(PARALLELSTL_BACKEND STREQUAL "tbb")
-    find_dependency(TBB 2018 REQUIRED tbb)
+if (PARALLELSTL_BACKEND STREQUAL "tbb")
+    find_dependency(TBB REQUIRED tbb)
 endif()
 
-include("${CMAKE_CURRENT_LIST_DIR}/ParallelSTLTargets.cmake")
+if (NOT TARGET pstl::ParallelSTL)
+    include("${CMAKE_CURRENT_LIST_DIR}/ParallelSTLTargets.cmake")
+endif()