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Bug#1092576: marked as done (linux-libc-dev: Multilib GCC bootstrap on Debian 12 fails due to missing asm/errno.h)

Your message dated Fri, 17 Jan 2025 17:33:19 +0100
with message-id <20250117163319.qq7c6yp4zefvnvly@shell.thinkmo.de>
and subject line Re: Bug#1092576: linux-libc-dev: Multilib GCC bootstrap on Debian 12 fails due to missing asm/errno.h
has caused the Debian Bug report #1092576,
regarding linux-libc-dev: Multilib GCC bootstrap on Debian 12 fails due to missing asm/errno.h
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1092576: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1092576
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-libc-dev
Version: 6.12.5-1+ppl1
Severity: normal
X-Debbugs-Cc: iii@linux.ibm.com

Dear Maintainer,

I'm trying to bootstrap gcc from git master with multilib on debian 12.
As far as I can see all the necessary cross packages are installed.

./configure && make fails with:

In file included from /usr/include/bits/errno.h:26,
                 from /usr/include/errno.h:28,
                 from ../../../../libgcc/../gcc/tsystem.h:101,
                 from ../../../../libgcc/libgcc2.c:27:
/usr/include/linux/errno.h:1:10: fatal error: asm/errno.h: No such file or directory
    1 | #include <asm/errno.h>
      |          ^~~~~~~~~~~~~

However, running ./configure with the same flags as the distro-built
GCC succeeds.

The minimal set of working options appears to be: --prefix=/usr
--build=x86_64-linux-gnu. This ultimately adds
-isystem /usr/x86_64-linux-gnu/include to the problematic GCC
invocation, which makes the issue go away.

I filed this upstream [1] and Andrew Pinski replied:

```
Looks like they changed how they handle mutli-lib with respect to multi-arch.

Before they required you to install the multiarch i386-linux-gnu too.

Now it seems like 32bit is multilibed in with the x86_64-linux-gnu.
BUT x32 is still multi-arch.

I would raise this issue with debian really because they made some changes which are break how multiarch work.
```

Best regards,
Ilya

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118369

-- System Information:
Debian Release: 12.8
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-27-amd64 (SMP w/128 CPU threads; PREEMPT)
Kernel taint flags: TAINT_SOFTLOCKUP
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

-- no debconf information

--- End Message ---
--- Begin Message --- 
On Thu, Jan 16, 2025 at 12:10:25AM +0100, Ilya Leoshkevich wrote:
> So we can close this bug.

Thanks for confirming.

Bastian

-- 
Pain is a thing of the mind.  The mind can be controlled.
		-- Spock, "Operation -- Annihilate!" stardate 3287.2

--- End Message ---
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