[Pkg-phototools-devel] Bug#864012: lepton: Upstream requires sse4.1 in Intel platform which is not available in all build machines

[James Cowgill]

Control: severity -1 serious

Hi,

On Sat, 3 Jun 2017 14:40:57 +0800 ChangZhuo Chen <czchen at debian.org> wrote:
> Package: lepton
> Version: 1.2.1+20170405-3
> Severity: normal
> 
> lepton requires sse4.1 to build with vectorization. However, not all
> build machines (ex: binet) support sse4.1. If lepton is built in these
> build machines, test cases will fail due to "Illegal instruction" [0].
> 
> [0] https://buildd.debian.org/status/fetch.php?pkg=lepton&arch=amd64&ver=1.2.1%2B20170405-3&stamp=1496420251&raw=0

If the package cannot reliably build on all the x86 build machines due
to a fault in the package, the package is RC-buggy.

Note that shipping a binary which requires SSE 4.1 is also prohibited
because it will SIGILL on old (but still supported) machines.

James

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