[CMake] Add a specific 'install-clang-headers' target.

llvm-svn: 253636

clang/lib/Headers/CMakeLists.txt

@@ -102,5 +102,14 @@ set_target_properties(clang-headers PROPERTIES FOLDER "Misc")
 
 install(
   FILES ${files} ${CMAKE_CURRENT_BINARY_DIR}/arm_neon.h
+  COMPONENT clang-headers
   PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
   DESTINATION lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include)
+
+if (NOT CMAKE_CONFIGURATION_TYPES) # don't add this for IDE's.
+  add_custom_target(install-clang-headers
+    DEPENDS
+    COMMAND "${CMAKE_COMMAND}"
+            -DCMAKE_INSTALL_COMPONENT=clang-headers
+            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+endif()