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diff --git a/test/extended_color.c b/test/extended_color.c
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+/****************************************************************************
+ * Copyright (c) 2017-2018,2019 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+/*
+ * $Id: extended_color.c,v 1.14 2019/08/24 23:09:18 tom Exp $
+ */
+
+#include <test.priv.h>
+
+#if USE_EXTENDED_COLOR
+
+#define SHOW(n) ((n) == ERR ? "ERR" : "OK")
+
+#if USE_SP_FUNCS
+static bool opt_s = FALSE;
+#define if_opt_s(a,b) (opt_s ? (a) : (b))
+#else
+#define if_opt_s(a,b) (b)
+#endif
+
+static void
+failed(const char *name)
+{
+ printw("...%s failed", name);
+ getch();
+ endwin();
+ ExitProgram(EXIT_FAILURE);
+}
+
+static void
+do_pair_content(SCREEN *sp, int pair)
+{
+ int i, f, b;
+
+ (void) sp;
+ i = if_opt_s(extended_pair_content_sp(sp, pair, &f, &b),
+ extended_pair_content(0, &f, &b));
+ if (i != OK)
+ failed("pair_content");
+ printw("pair %d contains (%d,%d)\n", pair, f, b);
+ getch();
+}
+
+static void
+do_init_pair(SCREEN *sp, int pair, int fg, int bg)
+{
+ int i;
+
+ (void) sp;
+ i = if_opt_s(init_extended_pair_sp(sp, pair, fg, bg),
+ init_extended_pair(pair, fg, bg));
+ if (i != OK)
+ failed("init_pair");
+}
+
+static void
+do_init_color(SCREEN *sp, int color, int adjust)
+{
+ int r, g, b;
+ int i;
+
+ (void) sp;
+ i = if_opt_s(extended_color_content_sp(sp, color, &r, &g, &b),
+ extended_color_content(color, &r, &g, &b));
+ if (i != OK)
+ failed("color_content");
+
+ r = (adjust + 1000 + r) % 1000;
+ g = (adjust + 1000 + g) % 1000;
+ b = (adjust + 1000 + b) % 1000;
+
+ i = if_opt_s(init_extended_color_sp(sp, color, r, g, b),
+ init_extended_color(color, r, g, b));
+ if (i != OK)
+ failed("init_color");
+}
+
+static void
+do_color_set(const char *expected, int pair)
+{
+ int i = color_set((short) pair, (void *) &pair);
+ printw("%s (%s)\n", expected, SHOW(i));
+ if (i != OK)
+ failed("color_set");
+ getch();
+}
+
+static void
+show_1_rgb(SCREEN *sp, const char *name, int color, int y, int x)
+{
+ int r, g, b;
+ int i;
+
+ (void) sp;
+ i = if_opt_s(extended_color_content_sp(sp, color, &r, &g, &b),
+ extended_color_content(color, &r, &g, &b));
+ wmove(stdscr, y, x);
+ if (i == OK) {
+ printw("%-8s %3d/%3d/%3d", name, r, g, b);
+ } else {
+ printw("%-8s %s", name, SHOW(i));
+ }
+}
+
+static void
+show_rgb(SCREEN *sp)
+{
+ int y, x;
+ getyx(stdscr, y, x);
+ show_1_rgb(sp, "RED", COLOR_RED, y + 1, x);
+ show_1_rgb(sp, "GREEN", COLOR_GREEN, y + 2, x);
+ show_1_rgb(sp, "BLUE", COLOR_BLUE, y + 3, x);
+ wmove(stdscr, y, x);
+}
+
+static void
+usage(void)
+{
+ static const char *tbl[] =
+ {
+ "Usage: extended_color",
+ "",
+ "Options:",
+ " -s use sp-funcs",
+ NULL
+ };
+ size_t n;
+ for (n = 0; n < SIZEOF(tbl); ++n) {
+ fprintf(stderr, "%s\n", tbl[n]);
+ }
+ ExitProgram(EXIT_FAILURE);
+}
+
+int
+main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+{
+ int i;
+ SCREEN *sp;
+
+ while ((i = getopt(argc, argv, "s")) != -1) {
+ switch (i) {
+#if USE_SP_FUNCS
+ case 's':
+ opt_s = TRUE;
+ break;
+#endif
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+ }
+
+ slk_init(1);
+ sp = newterm(NULL, stdout, stdin);
+ cbreak();
+ noecho();
+
+ if (!has_colors()) {
+ endwin();
+ fprintf(stderr, "This demo requires a color terminal\n");
+ ExitProgram(EXIT_FAILURE);
+ }
+
+ start_color();
+
+ do_pair_content(sp, 0);
+
+ printw("Initializing pair 1 to red/black\n");
+ do_init_pair(sp, 1, COLOR_RED, COLOR_BLACK);
+ do_color_set("RED/BLACK", 1);
+
+ printw("Initializing pair 2 to white/blue\n");
+ do_init_pair(sp, 2, COLOR_WHITE, COLOR_BLUE);
+ do_color_set("WHITE/BLUE", 2);
+
+ printw("Initializing pair 3 to green/black\n");
+ do_init_pair(sp, 3, COLOR_GREEN, COLOR_BLACK);
+ do_color_set("GREEN/BLACK", 3);
+
+ printw("Resetting colors to pair 0\n");
+ do_color_set("Default Colors", 0);
+
+ printw("Resetting colors to pair 1\n");
+ do_color_set("RED/BLACK", 1);
+
+ printw("Drawing soft-key tabs with pair 2\n");
+ slk_attrset(A_BOLD); /* reverse-video is hard to see */
+ (void) if_opt_s(extended_slk_color_sp(sp, 2),
+ extended_slk_color(2));
+ for (i = 1; i <= 8; ++i) {
+ char temp[80];
+ _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) "(SLK-%d)", i);
+ slk_set(i, temp, 0);
+ }
+ slk_touch();
+ slk_noutrefresh();
+
+ i = if_opt_s(can_change_color_sp(sp),
+ can_change_color());
+ if (i) {
+ do_color_set("Default Colors", 0);
+ printw("Press any key to stop...\n");
+ nodelay(stdscr, TRUE);
+ while (getch() == ERR) {
+ show_rgb(sp);
+ do_init_color(sp, COLOR_RED, 1);
+ do_init_color(sp, COLOR_BLUE, -1);
+ napms(50);
+ }
+ printw("...done");
+ nodelay(stdscr, FALSE);
+ getch();
+ }
+
+ endwin();
+
+ ExitProgram(EXIT_SUCCESS);
+}
+
+#else
+int
+main(void)
+{
+ printf("This program requires the ncurses extended color/pair functions\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif