Hi, > If I remove the line from libtool.m4 (innocent smile) I see that fixincludes/configure is better, and it does not appear to change the regenerated files in other directories (I didn’t do a build yet, just tried to regenerate with some manual autoconf invocations). I have done a full rebuild, and having looked more at the structure of libtool.m4 I am now convinced that having that line outside of the scope of _LT_DARWIN_LINKER_FEATURES is simply wrong (probably a copy-pasto or leftover from earlier code). Having rebuilt everything, it only manifests itself in fixincludes/ChangeLog. Iain is traveling right now, but when he is back I would like to submit this patch if he agrees with the above. It was regtested on x86_64-apple-darwin21. Thomas, can you confirm that it also fixes things for you? Although I don’t see why it wouldn’t. FX