Bug#1100851: yosys: Unreproducible yet again

[Scott Ashcroft]

On Wed, 2025-03-19 at 15:25 +0000, Scott Ashcroft wrote:
> If it works I'll send over a patch you can cherry pick.

https://salsa.debian.org/sashcroft/yosys/-/commit/8b166e2bbab49d1d1b4bf211ed75203443c60c4c

Other patches may need to be refreshed due to line number shuffles in
the Makefile.

This produces a working yosys-config with the correct output.
In the same environment (i.e. /bin/sh -> dash) the old verison
truncated it after -DYOSYS_VER=

Cheers,
Scott