gfxline_free(font->glyphs[font->num_glyphs].line);
font->glyphs[font->num_glyphs].line = 0;
font->glyphs[font->num_glyphs].advance = 0;
gfxline_free(font->glyphs[font->num_glyphs].line);
font->glyphs[font->num_glyphs].line = 0;
font->glyphs[font->num_glyphs].advance = 0;