LGLYPH_IX_DESCENT  314 src/composite.h #define LGLYPH_DESCENT(g) XFIXNUM (AREF ((g), LGLYPH_IX_DESCENT))
LGLYPH_IX_DESCENT  328 src/composite.h #define LGLYPH_SET_DESCENT(g, val) ASET ((g), LGLYPH_IX_DESCENT, make_fixnum (val))