[libsigcplusplus/cmake-integration] cmake: generate cmake *Config and *ConfigVersion files

[Marcin Kolny <mkolny src gnome org>]

commit d5b8ffd69207b63f6f7cf9be0926261233ac84a8
Author: Marcin Kolny <marcin kolny gmail com>
Date:   Sat Mar 12 15:00:24 2016 +0100

    cmake: generate cmake *Config and *ConfigVersion files

 CMakeLists.txt                   |   13 ++++++++++++-
 cmake/libsigcxx-3Config.cmake.in |    3 +++
 2 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d70f93..8b89b26 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,7 +44,18 @@ set (datarootdir \${prefix})
 set (datadir \${datarootdir})
 set (includedir \${prefix}/include)
 configure_file (sigc++.pc.in sigc++-${SIGCXX_API_VERSION}.pc @ONLY)
-install (FILES ${CMAKE_CURRENT_BINARY_DIR}/sigc++-${SIGCXX_API_VERSION}.pc DESTINATION 
${CMAKE_INSTALL_PREFIX}/lib/pkgconfig)
+
+
+set(version_config "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
+set(project_config "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake")
+set(config_install_dir "${CMAKE_INSTALL_PREFIX}/lib/cmake/${PROJECT_NAME}")
+
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file("${version_config}" VERSION ${PACKAGE_VERSION} COMPATIBILITY 
SameMajorVersion)
+configure_package_config_file(cmake/libsigcxx-3Config.cmake.in "${project_config}" INSTALL_DESTINATION 
"${config_install_dir}")
+
+install (FILES "${CMAKE_CURRENT_BINARY_DIR}/sigc++-${SIGCXX_API_VERSION}.pc"   DESTINATION 
"${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")
+install (FILES "${project_config}" "${version_config}"                                                 
DESTINATION "${config_install_dir}")
 
 enable_testing()
 
diff --git a/cmake/libsigcxx-3Config.cmake.in b/cmake/libsigcxx-3Config.cmake.in
new file mode 100644
index 0000000..e0e8728
--- /dev/null
+++ b/cmake/libsigcxx-3Config.cmake.in
@@ -0,0 +1,3 @@
+ PACKAGE_INIT@
+
+check_required_components("@PROJECT_NAME@")
\ No newline at end of file