Add CMake config version for allowing versioning on find_package.

CMakeLists.txt

@@ -159,9 +159,9 @@ else()
 endif()
 
 # Set runtime path
-set(CMAKE_SKIP_BUILD_RPATH			FALSE) # Add absolute path to all dependencies for BUILD
-set(CMAKE_BUILD_WITH_INSTALL_RPATH	FALSE) # Use CMAKE_INSTALL_RPATH for INSTALL
-set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE) # Do NOT add path to dependencies for INSTALL
+set(CMAKE_SKIP_BUILD_RPATH				FALSE) # Add absolute path to all dependencies for BUILD
+set(CMAKE_BUILD_WITH_INSTALL_RPATH		FALSE) # Use CMAKE_INSTALL_RPATH for INSTALL
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH	FALSE) # Do NOT add path to dependencies for INSTALL
 
 if(NOT SYSTEM_DIR_INSTALL)
 	# Find libraries relative to binary
@@ -214,10 +214,13 @@ add_subdirectory(deploy)
 #
 
 set(PROJECT_CONFIGURATION "metacall-config.cmake")
+set(PROJECT_CONFIGURATION_VERSION "metacall-config-version.cmake")
 
 set(PROJECT_CONFIGURATION_PATH "${PROJECT_BINARY_DIR}/${PROJECT_CONFIGURATION}")
+set(PROJECT_CONFIGURATION_VERSION_PATH "${PROJECT_BINARY_DIR}/${PROJECT_CONFIGURATION_VERSION}")
 
 configure_file("${PROJECT_CONFIGURATION}.in" "${PROJECT_CONFIGURATION_PATH}" @ONLY)
+configure_file("${PROJECT_CONFIGURATION_VERSION}.in" "${PROJECT_CONFIGURATION_VERSION_PATH}" @ONLY)
 
 #
 # Deployment (global project files)
@@ -228,11 +231,12 @@ install(FILES "${PROJECT_BINARY_DIR}/VERSION" DESTINATION ${INSTALL_ROOT} COMPON
 
 # Install cmake find script for the project
 install(FILES ${PROJECT_CONFIGURATION_PATH} DESTINATION ${INSTALL_ROOT} COMPONENT dev)
+install(FILES ${PROJECT_CONFIGURATION_VERSION_PATH} DESTINATION ${INSTALL_ROOT} COMPONENT dev)
 
 # Install the project meta files
-install(FILES AUTHORS   DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
-install(FILES LICENSE   DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
-install(FILES README.md DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
+install(FILES AUTHORS	DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
+install(FILES LICENSE	DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
+install(FILES README.md	DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
 
 # Install runtime data
 install(DIRECTORY ${PROJECT_SOURCE_DIR}/data DESTINATION ${INSTALL_DATA} COMPONENT runtime)

metacall-config-version.cmake.in

@@ -0,0 +1,32 @@
+#
+#	MetaCall Library by Parra Studios
+#	A library for providing a foreing function interface calls.
+#
+#	Copyright (C) 2016 - 2019 Vicente Eduardo Ferrer Garcia <vic798@gmail.com>
+#
+#	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.
+#
+
+set(PACKAGE_VERSION @META_VERSION@)
+
+if("${PACKAGE_FIND_VERSION_MAJOR}" EQUAL "@META_VERSION_MAJOR@")
+	if ("${PACKAGE_FIND_VERSION_MINOR}" EQUAL "@META_VERSION_MINOR@")
+		set(PACKAGE_VERSION_EXACT TRUE)
+	elseif("${PACKAGE_FIND_VERSION_MINOR}" LESS "@META_VERSION_MINOR@")
+		set(PACKAGE_VERSION_COMPATIBLE TRUE)
+	else()
+		set(PACKAGE_VERSION_UNSUITABLE TRUE)
+	endif()
+else()
+	set(PACKAGE_VERSION_UNSUITABLE TRUE)
+endif()