I want to block font substitution in GTK+ applications, but my research indicates that it might be controlled only at the system level, probably with fontconfig. I have found some discussion of how to direct fontconfig to substitute particular fonts, but nothing on how to competely turn off the feature.

The best answer would be how to disable glyph fallback for individual apps, but doing it system wide would be better than nothing.

I want to block font substitution in specific apps on Linux, but my research indicates that it might be controlled only at the system level, probably with fontconfig. I have found some discussion of how to direct fontconfig to substitute particular fonts, but nothing on how to competely turn off the feature.

The best answer would be how to disable glyph fallback for individual apps, but doing it system wide would be better than nothing.

I had asked previously about blocking font substitution in GTK+ applications, but further research indicates that it might be controlled only at the system level, probably with fontconfig. I have found some discussion of how to direct fontconfig to substitute particular fonts, but nothing on how to competely turn off the feature.

The best answer would be how to disable glyph fallback for individual apps, but doing it system wide would be better than nothing.

I want to block font substitution in GTK+ applications, but my research indicates that it might be controlled only at the system level, probably with fontconfig. I have found some discussion of how to direct fontconfig to substitute particular fonts, but nothing on how to competely turn off the feature.

The best answer would be how to disable glyph fallback for individual apps, but doing it system wide would be better than nothing.