GNU bug report logs - #36882
QEMU 4 fails to build for x86_64-linux

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Mathieu Othacehe <m.othacehe <at> gmail.com>
Cc: 36882 <at> debbugs.gnu.org, Marius Bakke <mbakke <at> fastmail.com>
Subject: bug#36882: Qemu 4.2.0 build for x86_64-linux fails
Date: Fri, 21 Feb 2020 21:29:26 +0100

Hi,

Mathieu Othacehe <m.othacehe <at> gmail.com> skribis:

> On core-updates, qemu-minimal (4.2.0), fails to build. This seems to be
> the same issue as this bug. The error is:
>
> In file included from /gnu/store/jsjsczgr8xdnbdminl7lm2v56b7dq7lq-glibc-2.31/include/features.h:489:0,
>                  from /gnu/store/jsjsczgr8xdnbdminl7lm2v56b7dq7lq-glibc-2.31/include/bits/libc-header-start.h:33,
>                  from /gnu/store/jsjsczgr8xdnbdminl7lm2v56b7dq7lq-glibc-2.31/include/stdint.h:26,
>                  from linuxboot_dma.c:65:
> /gnu/store/jsjsczgr8xdnbdminl7lm2v56b7dq7lq-glibc-2.31/include/gnu/stubs.h:7:11: fatal error: gnu/stubs-32.h: No such file or directory
>  # include <gnu/stubs-32.h>
>            ^~~~~~~~~~~~~~~~
>
> Because of this gcc command:
>
> /gnu/store/dcnp1h3q6qyipwkm0g7l7r1bkvlqvaqa-gcc-7.5.0/bin/gcc -iquote /tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/. -iquote . -iquote /tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/tcg -iquote /tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/tcg/i386 -I/tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/linux-headers -I/tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/linux-headers -iquote . -iquote /tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0 -iquote /tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/accel/tcg -iquote /tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0/include -I/tmp/guix-build-qemu-minimal-4.2.0.drv-0/qemu-4.2.0 -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fno-pie -ffreestanding   -fno-stack-protector   -m16   -Wa,-32 -MMD -MP -MT linuxboot_dma.o -MF ./linuxboot_dma.d -O2 -march=i486  -c -o linuxboot_dma.o linuxboot_dma.c

How was this bug initially reported against QEMU 4.0.0 fixed?

On master there’s pretty much the same command as above, with ‘-m16’,
and “yet it works”.

  https://ci.guix.gnu.org/log/ymzp5yz2r3zfw4xczwwlykyjv2kqcqs0-qemu-4.2.0

Ludo’.

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