Package: xfonts-utils Version: 1:7.7+6 Severity: normal It seems that the call to FT_Select_Charmap at read.c:231 does not work for some fonts, at least. I tried it with a Latin-1 encoded BDF font.
By default, fonttosfnt wants to reencode as Unicode, which is fine. Freetype finds the Latin-1 encoding of the BDF font, and thus decides it needs to be reencoded, although for some reason it records the charmap as Unicode (which is fine, being a superset of Latin-1). The logic at read.c:228 then tries to select the ft_encoding_none charmap, which is only valid for bitmap fonts with no encoding (reading the freetype source, ftobjs.c:3512). But this bitmap font has an encoding, so it is not allowed. I think the test at line 228 is bogus: for a symbol font (i.e. one that declares no encoding) it’s OK to use ft_encoding_none. Otherwise, if we’re recoding (i.e. we have a mapping) then we should use ft_encoding_unicode. If we’re in neither case, then we should just use the existing charmap, i.e. not call FT_Select_Charmap. Hence, this stanza should look something like: rc = 0; // In case we do nothing if(symbol) rc = FT_Select_Charmap(face, ft_encoding_none); else if(mapping) rc = FT_Select_Charmap(face, ft_encoding_unicode); Of course in my case, the selection of a Charmap is a no-op, since it merely reselects the only charmap in the font. -- System Information: Debian Release: bullseye/sid APT prefers focal-updates APT policy: (500, 'focal-updates'), (500, 'focal-security'), (500, 'focal'), (100, 'focal-backports') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.4.0-54-generic (SMP w/16 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages xfonts-utils depends on: ii libc6 2.31-0ubuntu9.1 ii libfontenc1 1:1.1.4-0ubuntu1 ii libfreetype6 2.10.1-2ubuntu0.1 ii x11-common 1:7.7+19ubuntu14 ii xfonts-encodings 1:1.0.5-0ubuntu1 ii zlib1g 1:1.2.11.dfsg-2ubuntu1.2 xfonts-utils recommends no packages. xfonts-utils suggests no packages. -- no debconf information