make tinyxml2_vendor an ament_package

CMakeLists.txt

@@ -2,21 +2,12 @@ cmake_minimum_required(VERSION 3.5)
 
 project(tinyxml2_vendor)
 
+find_package(ament_cmake REQUIRED)
 list(INSERT CMAKE_MODULE_PATH 0 "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
 find_package(TinyXML2 REQUIRED)
 
-configure_file(tinyxml2_vendorConfig.cmake.in
-"${PROJECT_BINARY_DIR}/tinyxml2_vendorConfig.cmake" @ONLY)
-configure_file(tinyxml2_vendorConfig-version.cmake.in
-"${PROJECT_BINARY_DIR}/tinyxml2_vendorConfig-version.cmake" @ONLY)
-
 install(DIRECTORY cmake DESTINATION share/${PROJECT_NAME})
 
-install(FILES
-  package.xml
-  DESTINATION share/${PROJECT_NAME})
-
-install(FILES
-  "${PROJECT_BINARY_DIR}/tinyxml2_vendorConfig.cmake"
-  "${PROJECT_BINARY_DIR}/tinyxml2_vendorConfig-version.cmake"
-  DESTINATION share/${PROJECT_NAME}/cmake)
+ament_package(
+  CONFIG_EXTRAS "tinyxml2_vendor-extras.cmake"	
+)

package.xml

@@ -12,11 +12,11 @@
   <maintainer email="william@osrfoundation.org">William Woodall</maintainer>
   <license>Apache License 2.0</license>
 
-  <buildtool_depend>cmake</buildtool_depend>
+  <buildtool_depend>ament_cmake</buildtool_depend>
 
   <depend>tinyxml2</depend>
 
   <export>
-    <build_type>cmake</build_type>
+    <build_type>ament_cmake</build_type>
   </export>
 </package>

tinyxml2_vendor-extras.cmake

@@ -0,0 +1,15 @@
+# Copyright 2019 Open Source Robotics Foundation, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+list(INSERT CMAKE_MODULE_PATH 0 "${tinyxml2_vendor_DIR}/Modules")