On Tue, May 06, 2025 at 11:58:54AM +0100, Matthieu Longo wrote: > Would it make sense to accept "#pragma once" and deviate one millimeter away > from the C99 standard instead of using #ifndef ... #define ... #endif ? I'm mildly against the proposal. Consistency matters. If you were starting a new sub-project of binutils then I wouldn't mind. -- Alan Modra