Thanks for putting this project up, it’s a real boon to those of us who need to go back a version. Fedora has this annoying habit of baselining every new release at a fairly high level with no back support. Unfortunately companies like NVidia don’t work at the same pace so we end up orphaned when we run an upgrade.

I’m trying to build the GCC 9.3.0 version on Fedora 32 as it’s earliest gcc version is 10, but it won’t build on my machine.

I’ve got an i7 with 16Mb RAM and had about 40Gb of swap. It fills up all the RAM and about half the swap, and then starts choking with errors like “fork: retry: Resource temporarily unavailable”.

I’ve tried dialling the jobs down to 1 (-j1) without any change.

From what I can see, at this stage the build is just stuck in an endless cycle of retrying to build itself. I typically give up after an hour or so.

So a couple of questions you may be able to help with:

Is it actually failing and cycling around, or can I leave it overnight and let it complete?
Is it actually possible to build gcc on a laptop anymore? I cannot upgrade the RAM so I’m pretty stuck here.
Is there a ready built tgz somewhere I could download?

Many Thanks,

Euan.

Did you check out the gcc6 branch? Otherwise, this looks like some kind of missing dependency…

Hey Bob. The OS is Kubuntu 18.04 and “export GCC_VERSION=6.4.0” is the only change in gcc-build-vars.sh script.

Thanks!

This is a new to me. What is your OS? What is in your gcc-build-vars.sh script?

./md-unwind-support.h: In function ‘x86_64_fallback_frame_state’:
./md-unwind-support.h:65:47: error: dereferencing pointer to incomplete type ‘struct ucontext’
sc = (struct sigcontext *) (void *) &uc_->uc_mcontext;