#1147168 libyuv: FTBFS on riscv64 with vector extension

Package:
src:libyuv
Source:
src:libyuv
Submitter:
Bo YU
Date:
2026-09-08 16:51:07 UTC
Severity:
normal
#1147168#5
Date:
2026-09-08 16:35:45 UTC
From:
To:
Dear Maintainer,

As aurel32 pointed out[0], two of the riscv64 buildds (rv-manda-02 and
rv-manda-04) recently got their hardware upgraded to a CPU with vector
extension ("V").

Now it had ftbfs on rv-manda-02:

```
error: unrecognized command-line option '-fno-vectorize'
error: unrecognized command-line option '-fno-slp-vectorize'
```
see: https://buildd.debian.org/status/fetch.php?pkg=libyuv&arch=riscv64&ver=0.0.1971.20260904-1&stamp=1788683665&raw=0

The upstream RISC-V configuration enables RVV by default and uses a
Clang-based toolchain[1]. Rather than experimenting with a new build
environment for this package, I simply disabled RVV support for the
Debian riscv64 build.

Please let me know if any issues.


[0]: https://bugs.debian.org/1145420
[1]: https://salsa.debian.org/debian/libyuv/-/blob/master/riscv_script/riscv-clang.cmake?ref_type=heads