" Create the `b:undo_ftplugin` variable if it doesn't exist call ftplugined#check_undo_ft() " More warnings and the usual version in flags for Clang let b:ale_cpp_clang_options='-Wall -Wextra -pedantic -std=c++17' let b:undo_ftplugin.='|unlet! b:ale_cpp_clang_options' " More warnings and the usual version in flags for GCC let b:ale_cpp_gcc_options='-Wall -Wextra -pedantic -std=c++17' let b:undo_ftplugin.='|unlet! b:ale_cpp_gcc_options' " Use compile_commands.json to look for additional flags let b:ale_c_parse_compile_commands=1 let b:undo_ftplugin.='|unlet! b:ale_c_parse_compile_commands'