def _static : Flag<"--static">, Alias<static>;
def _std_EQ : Joined<"--std=">, Alias<std_EQ>;
def _std : Separate<"--std">, Alias<std_EQ>;
-def _stdlib_EQ : Joined<"--stdlib=">, Alias<std_EQ>;
-def _stdlib : Separate<"--stdlib">, Alias<std_EQ>;
+def _stdlib_EQ : Joined<"--stdlib=">, Alias<stdlib_EQ>;
+def _stdlib : Separate<"--stdlib">, Alias<stdlib_EQ>;
def _sysroot_EQ : Joined<"--sysroot=">;
def _sysroot : Separate<"--sysroot">, Alias<_sysroot_EQ>;
def _target_help : Flag<"--target-help">;