Add CMake

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.14)
+project(MetroHash LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 17)
+
+add_library(metrohash
+            src/metrohash64.cpp
+            src/metrohash128.cpp
+            src/metrohash128crc.cpp
+            )
+target_compile_options(metrohash PRIVATE -march=native)
+target_include_directories(metrohash SYSTEM PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/src/)
+set (metro_headers src/metrohash64.h src/metrohash128.h src/metrohash128crc.h)
+set_target_properties(metrohash PROPERTIES
+                      PUBLIC_HEADER "${metro_headers}"
+                      )
+
+include(CMakePackageConfigHelpers)
+
+set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
+set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
+set(config_install_dir "lib/cmake/${PROJECT_NAME}")
+set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
+set(namespace "${PROJECT_NAME}::")
+
+# Configure '<PROJECT-NAME>Config.cmake'
+# Use variables:
+#   * TARGETS_EXPORT_NAME
+#   * PROJECT_NAME
+configure_package_config_file(
+        "${CMAKE_SOURCE_DIR}/cmake/Config.cmake.in"
+        "${project_config}"
+        INSTALL_DESTINATION "${config_install_dir}"
+)
+#Installation
+install(TARGETS metrohash
+        EXPORT "${TARGETS_EXPORT_NAME}"
+        LIBRARY DESTINATION "lib"
+        ARCHIVE DESTINATION "lib"
+        INCLUDES DESTINATION "include")
+
+install(EXPORT "${TARGETS_EXPORT_NAME}"
+        NAMESPACE "${namespace}"
+        DESTINATION "${config_install_dir}"
+        )

cmake/Config.cmake.in

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+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/@[email protected]")
+check_required_components("@PROJECT_NAME@")