* src/cff/cffgload.c (cff_free_glyph_data), src/cff/cffload.c (cff_font_load): Use FT_UNUSED. * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Initialize `error'. * src/sfnt/sfobjs.c (SFNT_Load_Face): Fix compiler warning.