On Thu, 29 Feb 2024 at 20:49, Thiago Jung Bauermann <thiago.bauerm...@linaro.org> wrote: > > > Hello, > > Christophe Lyon <christophe.l...@linaro.org> writes: > > > I hoped improving this would be as simple as adding > > --enable-maintainer-mode when configuring, after making sure > > autoconf-2.69 and automake-1.15.1 were in the PATH (using our host's > > libtool and gettext seems OK). > > > > However, doing so triggered several problems, which look like race > > conditions in the build system (we build at -j160): > > - random build errors in binutils / gdb with messages like "No rule to > > make target 'po/BLD-POTFILES.in". I managed to reproduce something > > similar manually once, I noticed an empty Makefile; the build logs are > > of course difficult to read, so I couldn't figure out yet what could > > cause this. > > > > - random build failures in gcc in fixincludes. I think this is a race > > condition because fixincludes is updated concurrently both from > > /fixincludes and $buillddir/fixincludes. Probably fixable in gcc > > Makefiles. > > > > - I've seen other errors when building gcc like > > configure.ac:25: error: possibly undefined macro: AM_ENABLE_MULTILIB > > from libquadmath. I haven't investigated this yet. > > I don't know about the last one, but regarding the race conditions, one > workaround might be to define a make target that regenerates all files > (if one doesn't exist already, I don't know) and make the CI call it > with -j1 to avoid concurrency, and then do the regular build step with > -j160. >
Yes, that's what I meant below with "magic" make target ;-) Thanks, Christophe > -- > Thiago
