clean-up cmake

CMakeLists.txt

@@ -2,27 +2,48 @@
 
 project(magic_enum VERSION "0.4.2" LANGUAGES CXX)
 
-add_library(${PROJECT_NAME} INTERFACE)
-target_include_directories(${PROJECT_NAME} INTERFACE
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-        $<INSTALL_INTERFACE:include>)
-
-if (CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
     set(IS_TOPLEVEL_PROJECT TRUE)
-else ()
+else()
     set(IS_TOPLEVEL_PROJECT FALSE)
-endif ()
+endif()
 
 option(MAGIC_ENUM_OPT_BUILD_EXAMPLES "Build magic_enum examples" ${IS_TOPLEVEL_PROJECT})
 option(MAGIC_ENUM_OPT_BUILD_TESTS "Build and perform magic_enum tests" ${IS_TOPLEVEL_PROJECT})
 
-if (MAGIC_ENUM_OPT_BUILD_EXAMPLES)
+if(MAGIC_ENUM_OPT_BUILD_EXAMPLES)
     add_subdirectory(example)
-endif ()
+endif()
 
-if (MAGIC_ENUM_OPT_BUILD_TESTS)
+if(MAGIC_ENUM_OPT_BUILD_TESTS)
     enable_testing()
     add_subdirectory(test)
-endif ()
+endif()
 
-include(install.cmake)
+include(GNUInstallDirs)
+include(CMakePackageConfigHelpers)
+
+add_library(${PROJECT_NAME} INTERFACE)
+target_include_directories(${PROJECT_NAME}
+        INTERFACE
+            $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+            $<INSTALL_INTERFACE:include>)
+
+write_basic_package_version_file(${PROJECT_NAME}ConfigVersion.cmake
+        VERSION ${PROJECT_VERSION}
+        COMPATIBILITY AnyNewerVersion)
+
+install(TARGETS ${PROJECT_NAME}
+        EXPORT ${PROJECT_NAME}Targets
+        PUBLIC_HEADER DESTINATION include
+        INCLUDES DESTINATION include)
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
+        DESTINATION lib/cmake/${PROJECT_NAME})
+
+install(EXPORT ${PROJECT_NAME}Targets
+        NAMESPACE ${PROJECT_NAME}::
+        DESTINATION lib/cmake/${PROJECT_NAME})
+
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include
+        DESTINATION include)

install.cmake

@@ -1,25 +0,0 @@
-include(CMakePackageConfigHelpers)
-write_basic_package_version_file(
-        ${PROJECT_NAME}ConfigVersion.cmake
-        VERSION ${PROJECT_VERSION}
-        COMPATIBILITY AnyNewerVersion
-)
-
-install(TARGETS ${PROJECT_NAME}
-        EXPORT ${PROJECT_NAME}Targets
-        PUBLIC_HEADER DESTINATION include
-        INCLUDES DESTINATION include
-        )
-
-install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
-        DESTINATION lib/cmake/${PROJECT_NAME}
-        )
-
-install(EXPORT ${PROJECT_NAME}Targets
-        NAMESPACE ${PROJECT_NAME}::
-        DESTINATION lib/cmake/${PROJECT_NAME}
-        )
-
-install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include
-        DESTINATION include
-        )