[bug#50174] [PATCH core-updates-frozen 1/2] gnu: make-bootstrap: Fix build of static gawk.

[Thiago Jung Bauermann]

Hello Ludo,

Em segunda-feira, 27 de setembro de 2021, às 18:38:45 -03, Ludovic Courtès 
escreveu:
> Thiago Jung Bauermann <bauermann@kolabnow.com> skribis:
> > gawk for ‘static-binaries-tarball’ is failing to build natively, at
> > least for x86_64-linux¹ and powerpc64le-linux. On both of them, the
> > problem is the same:
> > 
> > ld: ext.o: in function `load_ext':
> > /tmp/guix-build-gawk-5.1.0.drv-0/gawk-5.1.0/ext.c:59: warning: Using
> > 'dlopen' in statically linked applications requires at runtime the
> > shared libraries from the glibc version used for linking ld:
> > /gnu/store/qmgsfxm3ad5n7bi947n7xw0wq86blqr9-glibc-2.33-static/lib/libc
> > .a(getopt.o): in function `_getopt_internal_r': (.text+0x6e0): multiple
> > definition of `_getopt_internal_r';
> > support/libsupport.a(getopt.o):/tmp/guix-build-gawk-5.1.0.drv-0/gawk-5
> > .1.0/support/getopt.c:404: first defined here
> 
> I don’t see that on x86_64/i686:
> 
> --8<---------------cut here---------------start------------->8---
> $ ./pre-inst-env  guix weather bootstrap-tarballs -s x86_64-linux -s 
> i686-linux

I’m using the package ‘static-binaries-tarball’ to expose the issue. IIUC,
the static binaries (of which ‘gawk-static’ is one) aren’t used for
bootstrapping on i686-linux and x86_64-linux so you won’t see this problem
with ‘bootstrap-tarballs’ on those platforms.

> -s aarch64-linux -s armhf-linux

OTOH, these platforms do use the static binaries. For some reason which TBH
I didn’t try to investigate, ‘gawk-static’ cross-builds correctly so you’ll 
only see
this problem on native builds of ‘bootstrap-tarballs’ or 
‘static-binaries-tarball’.

> Substitutes are missing for the following items:
>   /gnu/store/3c8gbn2gljj48wihs9h3nxmfwix55wrn-bootstrap-tarballs-0       
>        armhf-linux
> /gnu/store/8b6rznm54l6drbs6qfca5bi8yjqbx51f-bootstrap-tarballs-0        
>       aarch64-linux

Doesn’t this mean that there is indeed a problem with ‘bootstrap-tarballs’
on these platforms?

> Could it be that something changed in the meantime?

It doesn’t look like it. The latest CI result for an x86_64-linux native
build of ‘static-binaries-tarball’ on ‘core-updates-frozen’ failed:

https://ci.guix.gnu.org/build/709458/details

Ditto for the ‘core-updates’ branch:

https://ci.guix.gnu.org/build/825383/details

Also, I can still reproduce the problem on my laptop with current
‘core-updates-frozen’ commit 81a34a90d72d (“doc: Update postgresql defaut
socket directory.”) using:

$ ./pre-inst-env guix build static-binaries-tarball

-- 
Thanks,
Thiago