Add find_package support (#150)

CMakeLists.txt

@@ -316,6 +316,22 @@ include_directories(BEFORE SYSTEM
   ${CMAKE_CURRENT_SOURCE_DIR}/include
   )
 
+
+configure_file(
+  ${CMAKE_CURRENT_SOURCE_DIR}/cmake/CppInterOpConfig.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/CppInterOpConfig.cmake
+  @ONLY)
+configure_file(
+  ${CMAKE_CURRENT_SOURCE_DIR}/cmake/CppInterOpConfigVersion.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/CppInterOpConfigVersion.cmake
+  @ONLY)
+install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/
+  DESTINATION lib/cmake
+  FILES_MATCHING
+  PATTERN "*.cmake"
+  )
+
+
 install(DIRECTORY include/
   DESTINATION include
   FILES_MATCHING

cmake/CppInterOpConfig.cmake.in

@@ -0,0 +1,34 @@
+# This file allows users to call find_package(CppInterOp) and pick up our targets.
+
+# Compute the installation prefix from this CppInterOpConfig.cmake file location.
+get_filename_component(CPPINTEROP_INSTALL_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
+get_filename_component(CPPINTEROP_INSTALL_PREFIX "${CPPINTEROP_INSTALL_PREFIX}" PATH)
+get_filename_component(CPPINTEROP_INSTALL_PREFIX "${CPPINTEROP_INSTALL_PREFIX}" PATH)
+
+### build/install workaround
+
+if (IS_DIRECTORY "${CPPINTEROP_INSTALL_PREFIX}/include")
+  set(_include "${CPPINTEROP_INSTALL_PREFIX}/include")
+else()
+  set(_include "@CMAKE_CURRENT_SOURCE_DIR@/include")
+endif()
+
+if (IS_DIRECTORY "${CPPINTEROP_INSTALL_PREFIX}/cmake")
+  set(_cmake "${CPPINTEROP_INSTALL_PREFIX}/cmake")
+else()
+  set(_cmake "@CMAKE_CURRENT_SOURCE_DIR@/cmake")
+endif()
+
+###
+
+set(CPPINTEROP_EXPORTED_TARGETS "clangCppInterOp")
+set(CPPINTEROP_CMAKE_DIR "${_cmake}")
+set(CPPINTEROP_INCLUDE_DIRS "${_include}")
+
+# Provide all our library targets to users.
+add_library(clangCppInterOp SHARED IMPORTED)
+set_property(TARGET clangCppInterOp PROPERTY IMPORTED_LOCATION "${CPPINTEROP_DIR}/lib/libclangCppInterOp.so")
+set_property(TARGET clangCppInterOp PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${_include}")
+
+unset(_include)
+unset(_cmake)

cmake/CppInterOpConfigVersion.cmake.in

@@ -0,0 +1,11 @@
+set(PACKAGE_VERSION "1.1~dev")
+
+# LLVM is API-compatible only with matching major.minor versions
+# and patch versions not less than that requested.
+if("1.1" VERSION_EQUAL "${PACKAGE_FIND_VERSION_MAJOR}.${PACKAGE_FIND_VERSION_MINOR}"
+   AND NOT "0" VERSION_LESS "${PACKAGE_FIND_VERSION_PATCH}")
+  set(PACKAGE_VERSION_COMPATIBLE 1)
+  if("0" VERSION_EQUAL "${PACKAGE_FIND_VERSION_PATCH}")
+    set(PACKAGE_VERSION_EXACT 1)
+  endif()
+endif()