FC_FILE incorrect in sandbox container(flatpak)
FC_FILE
is used by wine to get font file path, but it's incorrect in flatpak.
https://gitlab.winehq.org/wine/wine/-/merge_requests/2081
https://github.com/flatpak/flatpak/issues/5307
bind mount:
/run/host/fonts <- /usr/share/fonts
/run/host/user-fonts <- ~/.local/share/fonts
/run/host/fonts-cache <- /usr/lib/fontconfig/cache
/run/host/user-fonts-cache <- ~/.cache/fontconfig
FcConfigGetFontDirs( config ) -> /run/host/user-fonts/test,...
FcDirCacheRead( /run/host/user-fonts/test, ... ) -> FcCacheCopySet -> pattern
FcPatternGetString( pattern, FC_FILE, 0, &filename ) ->` ~/.local/share/fonts/test/test.ttf`
~/.local/share/fonts/test/test.ttf
is incorrect in container.