https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108287
--- Comment #3 from Nicolas Mattia <nicow.mattia at gmail dot com> --- (In reply to Andrew Pinski from comment #1) > The best fix is do something similar to aarch64 in config/aarch64/t-aarch64: > $(srcdir)/config/aarch64/aarch64-tune.md: s-aarch64-tune-md; @true > s-aarch64-tune-md: $(srcdir)/config/aarch64/gentune.sh \ > $(srcdir)/config/aarch64/aarch64-cores.def > $(SHELL) $(srcdir)/config/aarch64/gentune.sh \ > $(srcdir)/config/aarch64/aarch64-cores.def > \ > tmp-aarch64-tune.md > ifneq ($(strip $(ENABLE_MAINTAINER_RULES)),) > $(SHELL) $(srcdir)/../move-if-change tmp-aarch64-tune.md \ > $(srcdir)/config/aarch64/aarch64-tune.md > else > @if ! cmp -s tmp-aarch64-tune.md \ > $(srcdir)/config/aarch64/aarch64-tune.md; then \ > echo "aarch64-tune.md has changed; either"; \ > echo "configure with --enable-maintainer-mode"; \ > echo "or copy tmp-aarch64-tune.md to > $(srcdir)/config/aarch64/aarch64-tune.md"; \ > exit 1; \ > fi > endif > $(STAMP) s-aarch64-tune-md > > I suspect the issue is rather the timestamp on the files is incorrect > causing the trying of generating of the file. I see you already confirmed, so let me re-confirm. Not only is the `$src` directory read-only, but all timestamps are set to the epoch. I'm happy to contribute the fix but will need some hand holding!
