* alloc.c, font.c, font.h, ftfont.c, ftxfont.c, macfont.m,

* alloc.c, font.c, font.h, ftfont.c, ftxfont.c, macfont.m,
* nsfont.m, w32font.c, xfont.c, xftfont.c: Revert last and
2013-12-12 font-related change to avoid Bug#16128, which
is quite hard to fix without even more substantial changes.