link static stdc++ and gcc to keep older support.

Author: Jousway

Source/CMakeLists.txt

@@ -17,6 +17,8 @@ target_link_libraries(${PROJECT_NAME}
 if (MINGW)
 	target_link_libraries(${PROJECT_NAME} ws2_32)
 	target_link_options(${PROJECT_NAME} PRIVATE -static-libgcc -static-libstdc++)
+elseif(UNIX AND NOT APPLE)
+	target_link_options(${PROJECT_NAME} PRIVATE -static-libgcc -static-libstdc++)
 endif()
 
 target_include_directories(${PROJECT_NAME} PUBLIC