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