color_t            52 maint/gnulib/lib/gl_anyrbtree_list1.h   color_t color;                    /* node's color */
color_t           708 maint/gnulib/lib/gl_anyrbtree_list2.h       color_t removed_color;
color_t            45 maint/gnulib/lib/gl_rbtree_ordered.h   color_t color;                    /* node's color */
color_t           705 maint/gnulib/lib/gl_rbtree_ordered.h       color_t removed_color;