Stack overflow when building on ppc64, ppc64le

[rwmjones]

This is really "FYI" rather than a bug. It may even be a compiler bug. Anyway, when building on ppc64 or ppc64le there's a stack overflow in the final stages of the build:

Running[744]: (cd _build/default/Camomile && ./tools/camomilelocaledef.exe --file locales/zh__PINYIN.txt locales)
Command [744] got signal SEGV:
$ (cd _build/default/Camomile && ./tools/camomilelocaledef.exe --file locales/zh__PINYIN.txt locales)

It happens in the same place on both arches.

I worked around it by doing:

%ifarch %{power64}
ulimit -Hs 65536
ulimit -Ss 65536
%endif

This doesn't happen on the other arches we test with (i686, x86_64, s390, s390x, aarch64, armv7hl).

[rwmjones]

Forgot to mention that this is with OCaml 4.05.

[jirutka]

I’ve encountered the same problem on Alpine Linux and ppc64le.

[yoriyuki]

The true solution is rewriting the locale parser tail-recursive, but this takes some time.

[dmbaturin]

Has anyone tried it with recent compiler versions?

[rwmjones]

It still fails with OCaml 4.13.0. The failure is here, but this is a scratch build so it'll disappear after a few days: https://koji.fedoraproject.org/koji/taskinfo?taskID=80558387