21.5 build time segmentation fault

Hi, I have received this bug report, https://bugs.gentoo.org/661592, which is about a segmentation violation during the build process of xemacs 21.5.34. I managed to recreate the problem once(!) on one of my machines but after that I have not been able to get it again, sigh, although I have tried it a like 20 times or more. I can't see that we have had this issue on the build bot either which uses the same machine I got the error on and does a lot of builds!? Aidan: Have you seen anything like this? (With a hope that some recent development you have done has touched and fixed things that could cause segmentation violations in this old code base!?) Yours -- %% Mats