Bug#900777: fontmake: fails to rebuild fonts-firacode from its glyphs source

["Fabian Greffrath" <fabian@debian.org>]

Hi,

Yao Wei wrote:
> Sorry for the late reply, here was me testing to build Fira Code after
> bumping fontmake:

*sigh* this doesn't look too promising. Do you have any idea which package
is responsible for this error?

Thanks,

 - Fabian