It's working.

export
XDG_DATA_DIRS="$HOME/.guix-profile/share${XDG_DATA_DIRS:+:}$XDG_DATA_DIRS"

This solution is effective for LFS too. Thank you.

2019年1月8日(火) 3:10 Andreas Enge <andreas@enge.fr>:

> Hello,
>
> I am having the same problem with icecat-60.3.0-gnu1 from commit c71bbfc,
> but with a different font:
>
> ...
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.559: failed to create cairo scaled font, expect
> ugly output. the offending font is 'Nimbus Sans L 10'
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.560: font_face status is: file not found
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.560: scaled_font status is: file not found
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.560: shaping failure, expect ugly output.
> shape-engine='PangoFcShapeEngine', font='Nimbus Sans L 10', text='●'
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.562: failed to create cairo scaled font, expect
> ugly output. the offending font is 'Nimbus Sans L 11.666015625'
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.562: font_face status is: file not found
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.562: scaled_font status is: file not found
> (/gnu/store/iin8fiv8bc11r7wnxck57rhfb74v7d57-icecat-60.3.0-gnu1/lib/icecat/.icecat-real:15119):
> Pango-WARNING **: 18:04:29.562: shaping failure, expect ugly output.
> shape-engine='PangoFcShapeEngine', font='Nimbus Sans L 11.666015625',
> text='Zwölf Boxkämpfer jagen Viktor quer über den großen Sylter Deich.'
> ...
>
> This is Guix on top of Debian. My previous version was 52.6.0, so I cannot
> say when things broke... I kept the old version since I wanted to use the
> Requestpolicy extension.
>
> The problem persists after deleting $HOME/.cache/fontconfig and running
>    fc-cache -f -v
>
> It also persists when removing $HOME/.mozilla (which surprisingly is not
> recreated when running icecat).
>
> Andreas
>
>