Adding install commands and cmake build config file support

CMakeLists.txt

@@ -1,6 +1,54 @@
 cmake_minimum_required(VERSION 3.10)
-project(lzokay)
+include(CMakePackageConfigHelpers)
+
+project(lzokay VERSION 0.1 LANGUAGES CXX)
 add_library(lzokay lzokay.hpp lzokay.cpp)
 set(LZOKAY_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR} CACHE PATH "lzokay include path" FORCE)
 add_executable(lzokaytest test.cpp)
-target_link_libraries(lzokaytest lzokay)
+target_link_libraries(lzokaytest lzokay)
+set_target_properties(lzokay lzokaytest PROPERTIES CXX_STANDARD 14 CXX_STANDARD_REQUIRED ON)
+
+# Set installation for headers
+install(
+    FILES "${PROJECT_SOURCE_DIR}/lzokay.hpp"
+    DESTINATION "include/lzokay"
+)
+
+set(version_config_file "${PROJECT_BINARY_DIR}/lzokayConfigVersion.cmake")
+set(config_file "${PROJECT_BINARY_DIR}/lzokayConfig.cmake")
+set(config_install_dir "lib/cmake/lzokay")
+
+# Associate target with export
+install(
+    TARGETS lzokay
+    EXPORT lzokayTargets
+    ARCHIVE DESTINATION "lib"
+    INCLUDES DESTINATION "include/lzokay"  # This sets the INTERFACE_INCLUDE_DIRECTORIES property of the target.
+)
+
+# Install the target config files
+install(
+    EXPORT lzokayTargets
+    NAMESPACE "lzokay::"
+    DESTINATION "${config_install_dir}"
+)
+
+# Generate version config file
+write_basic_package_version_file(
+    "${version_config_file}"
+    COMPATIBILITY SameMajorVersion
+)
+
+# Generate config file
+configure_package_config_file(
+    "Config.cmake.in"
+    "${config_file}"
+    INSTALL_DESTINATION "lib/cmake/lzokay"
+)
+
+# Install the config files
+install(
+    FILES "${config_file}" "${version_config_file}"
+    DESTINATION ${config_install_dir}
+)
+

Config.cmake.in

@@ -0,0 +1,4 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/lzokayTargets.cmake")
+check_required_components(lzokay)