Config-mode install

CMakeLists.txt

@@ -105,13 +105,6 @@ target_link_libraries(bzip2_bin bz2)
 set_target_properties(bzip2_bin PROPERTIES OUTPUT_NAME bzip2)
 
 
-install(TARGETS bz2 bzip2recover bzip2_bin
-    RUNTIME DESTINATION bin
-    ARCHIVE DESTINATION lib
-    LIBRARY DESTINATION lib
-    PUBLIC_HEADER DESTINATION include
-    )
-
 file(GLOB man1 ${bzip2_SOURCE_DIR}/*.1)
 
 
@@ -195,3 +188,47 @@ add_test(NAME decompress_block_size_3
     )
 
 endif()
+
+####
+# Installation (https://github.com/forexample/package-example)
+
+set(config_install_dir "lib/cmake/${PROJECT_NAME}")
+set(include_install_dir "include")
+
+set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
+
+set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
+set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
+set(targets_export_name "${PROJECT_NAME}Targets")
+set(namespace "${PROJECT_NAME}::")
+
+include(CMakePackageConfigHelpers)
+
+# Note: PROJECT_VERSION is used as a VERSION
+write_basic_package_version_file(
+    "${version_config}" COMPATIBILITY SameMajorVersion
+)
+
+# Note: variable 'targets_export_name' used
+configure_file("cmake/Config.cmake.in" "${project_config}" @ONLY)
+
+install(
+    TARGETS bz2 bzip2recover bzip2_bin
+    EXPORT "${targets_export_name}"
+    LIBRARY DESTINATION "lib"
+    ARCHIVE DESTINATION "lib"
+    RUNTIME DESTINATION "bin"
+    INCLUDES DESTINATION "${include_install_dir}"
+    PUBLIC_HEADER DESTINATION "${include_install_dir}"
+)
+
+install(
+    FILES "${project_config}" "${version_config}"
+    DESTINATION "${config_install_dir}"
+)
+
+install(
+    EXPORT "${targets_export_name}"
+    NAMESPACE "${namespace}"
+    DESTINATION "${config_install_dir}"
+)

cmake/Config.cmake.in

@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/@targets_export_name@.cmake")