bug#37593: [core-updates] Linux-Libre fails to build on aarch64-linux

["Gábor Boskovits" <boskovits@gmail.com>]

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Hello Marius,

Marius Bakke <mbakke@fastmail.com> ezt írta (időpont: 2019. okt. 5., Szo,
14:40):

> Pierre Langlois <pierre.langlois@gmx.com> writes:
>
> > Hi Marius,
> >
> > Marius Bakke writes:
> >
> >> Berlin fails to build "linux-libre" for AArch64 on the 'core-updates'
> >> branch.  Here is a recent attempt:
> >>
> >> https://ci.guix.gnu.org/build/1758844/details
> >>
> >> Log file for the latest build:
> >>
> >>
> https://ci.guix.gnu.org/log/aq2rnrmjsgnyk8vmsm7aa3mgdj39dcwh-linux-libre-5.2.17.drv
> >>
> >> This seems to be the salient bit:
> >>
> >> CC [M]  arch/arm64/lib/xor-neon.o
> >> In file included from
> /gnu/store/nr1aw4i32h7rmxwmq7d2da0mwcwg551j-glibc-2.29/include/stdint.h:34:0,
> >>                  from
> /gnu/store/yckkivhynk4hjcr0iry9vbcyc0lqqnxj-gcc-7.4.0-lib/lib/gcc/aarch64-unknown-linux-gnu/7.4.0/include/arm_neon.h:33,
> >>                  from ./arch/arm64/include/asm/neon-intrinsics.h:33,
> >>                  from arch/arm64/lib/xor-neon.c:11:
> >>
> /gnu/store/nr1aw4i32h7rmxwmq7d2da0mwcwg551j-glibc-2.29/include/bits/stdint-intn.h:27:19:
> error: conflicting types for 'int64_t'
> >>  typedef __int64_t int64_t;
> >>                    ^~~~~~~
> >> In file included from ./include/linux/list.h:5:0,
> >>                  from ./include/linux/module.h:9,
> >>                  from arch/arm64/lib/xor-neon.c:10:
> >> ./include/linux/types.h:114:15: note: previous declaration of 'int64_t'
> was here
> >>  typedef s64   int64_t;
> >>                ^~~~~~~
> >> In file included from
> /gnu/store/nr1aw4i32h7rmxwmq7d2da0mwcwg551j-glibc-2.29/include/stdint.h:37:0,
> >>                  from
> /gnu/store/yckkivhynk4hjcr0iry9vbcyc0lqqnxj-gcc-7.4.0-lib/lib/gcc/aarch64-unknown-linux-gnu/7.4.0/include/arm_neon.h:33,
> >>                  from ./arch/arm64/include/asm/neon-intrinsics.h:33,
> >>                  from arch/arm64/lib/xor-neon.c:11:
> >>
> /gnu/store/nr1aw4i32h7rmxwmq7d2da0mwcwg551j-glibc-2.29/include/bits/stdint-uintn.h:27:20:
> error: conflicting types for 'uint64_t'
> >>  typedef __uint64_t uint64_t;
> >>                     ^~~~~~~~
> >> In file included from ./include/linux/list.h:5:0,
> >>                  from ./include/linux/module.h:9,
> >>                  from arch/arm64/lib/xor-neon.c:10:
> >> ./include/linux/types.h:112:15: note: previous declaration of
> 'uint64_t' was here
> >>  typedef u64   uint64_t;
> >>                ^~~~~~~~
> >> make[1]: *** [scripts/Makefile.build:285: arch/arm64/lib/xor-neon.o]
> Error 1
> >> make: *** [Makefile:1073: arch/arm64/lib] Error 2
> >> make: *** Waiting for unfinished jobs....
> >>
> >> Not sure what's going on here.  Ideas?
> >
> > Ha, that looks familiar, the same issue happened back in July:
> > https://lists.gnu.org/archive/html/guix-devel/2019-07/msg00175.html
> >
> > I don't think we worked out what was the problem exactly though :-/
>
> So I was able to build it with this patch:
>
>
> It's not very pretty though.  Thoughts?
>

I believe that we encountered similar CPATH related problems earlier, which
were fixed by pathes like this, so it looks good to me. Maybe it would
worth investigating the pattern though, and create some generic mechanism
to deal with it. Wdyt?


Best regards,
g_bor
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