util/grub-gen-asciih.c has:
```c
glyph_idx = FT_Get_Char_Index (face, char_code);
if (!glyph_idx)
return;
```
Apparently it returns 0 now, so the ascii.h is broken.
please fix this ASAP so that we can proceed with RPM 4.15.
Once you fix it, please run `fedpkg build --target=f31-rpm` for a build.
I think this might be very related.
- FreeType now uses the `defaultChar' property of PCF fonts to set
the glyph for the undefined character at glyph index 0 (as
FreeType already does for all other supported font formats). As
a consequence, the order of glyphs of a PCF font if accessed
with FreeType can be different now compared to previous
versions.
This change doesn't affect PCF font access with cmaps.