use_kerning       817 ext/gd/libgd/gdft.c 	FT_Bool use_kerning;
use_kerning       913 ext/gd/libgd/gdft.c 	use_kerning = FT_HAS_KERNING (face);
use_kerning      1075 ext/gd/libgd/gdft.c 		if (use_kerning && previous && glyph_index) {