add more flags

CMakeLists.txt

@@ -1,6 +1,19 @@
 cmake_minimum_required(VERSION 3.17)
 
 option(ENABLE_ICONV "Use libiconv to convert encoding" ON)
+option(ENABLE_STANDALONE "Build utils standalone" OFF)
+option(ENABLE_CXX17 "Enable C++ 17" OFF)
+option(INSTALL_DEP_FILES "Install a file with dependences." OFF)
+
+if (ENABLE_STANDALONE)
+    project(utils)
+    include(GNUInstallDirs)
+endif()
+
+if (MSVC)
+    add_compile_options(/utf-8)
+    add_compile_options(/EHsc)
+endif()
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
@@ -89,3 +102,19 @@ endif()
 if (NOT MSVC)
     target_link_libraries(utils m)
 endif()
+if (WIN32)
+    target_link_libraries(utils shell32)
+endif()
+if (ENABLE_CXX17)
+    target_compile_features(utils PRIVATE cxx_std_17)
+endif()
+if (ENABLE_STANDALONE)
+    install(TARGETS utils)
+endif()
+if (INSTALL_DEP_FILES)
+    get_target_property(OUT utils LINK_LIBRARIES)
+    if (OUT)
+        file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/utils_dep.txt" "${OUT}")
+        install(FILES "${CMAKE_CURRENT_BINARY_DIR}/utils_dep.txt" DESTINATION ${CMAKE_INSTALL_PREFIX})
+    endif()
+endif()