bug#23376: Bootstrap failure on'binutils-cross-boot0-2.25.1: cannot find -lstdc++

[Roel Janssen]

build-gcc-boot0.log
Description: Text document

build-gcc-final.log.gz
Description: application/gzip

guix-userspace.patch
Description: Text Data

Ludovic Courtès writes:

> Roel Janssen <address@hidden> skribis:
>
>> In an attempt to bootstrap Guix, I repeatedly encounter the same error.
>> I attached the last 5000 lines of the build output of the command:
>>   guix build bootstrap-tarballs
>>
>> When running the daemon, I used the following environment variables:
>> NIX_STORE_DIR=/hpc/store
>> NIX_CONF_DIR=/hpc/etc/guix
>> NIX_STATE_DIR=/hpc/var/guix
>> NIX_LOG_DIR=/hpc/log
>
> And TMPDIR?

I didn't set TMPDIR.  Should I do that?

> (For recent versions of guix-daemon, TMPDIR has no effect on the build
> chroot.  I assume this uses a recent guix-daemon.)

Checkout out and compiled at the day I submitted the bug report.

> Note that these environment variables are undocumented; use at your own
> risks.  :-)

Ha!  I found them in the code for the guix-daemon.  Unrelated to this
bugreport, but don't you think we should rename these to GUIX_*
equivalent environment variables?

>> The same environment variables (and values) were set when running the
>> guix build command.
>>
>> What am I doing that causes the build to fail?
>
> Did you pass the --disable-chroot or --chroot-directory options of
> guix-daemon?

No, but I have made some modifications to the code to make it run
completely in userspace.  The code should effectively disable chrooting
(unfortunately).

I attached a patch displaying the differences between the version I used
and commit 85f0945.

> The log you sent suggests a failure to build (@@ (gnu packages
> commencement) gcc-final) because the directory is called “gcc-4.9.3”,
> not “gcc-cross-boot0-4.9.3”.  However, it also shows that
> binutils-cross-boot0 is used, which is not the case for ‘gcc-final’.
>
> What Guix commit are you using?

I'm using commit 85f09459162d12e7ce7874995ae2837164ed17ee (with the
modifications in my patch).

> Could you identify more precisely what’s failing to build?  For
> instance, you can run:
>
>   guix build -e '(@@ (gnu packages commencement) gcc-boot0)'
>   guix build -e '(@@ (gnu packages commencement) gcc-final)'

It seems the problem arises when building gcc-final.  I attached the
complete output of both commands.  Because the output for gcc-final is
rather large, I compressed it.

Thanks for your time!

Kind regards,
Roel Janssen