Z. Majeed wrote: > Spotting the diff was trivial - it's caused by an idempotency check for > stddef.h that was added to gnulib in commit e529f4f on 8 April 2025
(Workaround to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114870 ) I see. Yes, this explains why (with the bison state as of two days ago) I see no problem with gcc < 15 and you saw the problem with gcc >= 15. > Until there's a new Bison release the fix is to use source since Paul's > update commit 2ceaf03 Thanks for finding out. I'll set up a CI for Bison, so as to see how the current Bison sources behave on other platforms than Cygwin. Bruno
