bpo-45067 - Verify the version of ncurses for extended color support …

…feature usage. (GH-28260)

* issue45067 - Fix _curses compilation in CentOS 7. Verify the version of ncurses
for extended color support feature usage.

The function extended_color_content was introduced in 2017.  The ncurses-devel
package in CentOS 7 had a older version ncurses resulted in compilation error.
For compiling ncurses with extended color support, we verify the version of the
ncurses library.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit 7944307)

Co-authored-by: Senthil Kumaran <senthil@python.org>

Modules/_cursesmodule.c

@@ -135,11 +135,11 @@ typedef chtype attr_t;           /* No attr_t type is available */
 #define STRICT_SYSV_CURSES
 #endif
 
-#if NCURSES_EXT_COLORS+0 && NCURSES_EXT_FUNCS+0
+#if NCURSES_EXT_FUNCS+0 >= 20170401 && NCURSES_EXT_COLORS+0 >= 20170401
 #define _NCURSES_EXTENDED_COLOR_FUNCS   1
 #else
 #define _NCURSES_EXTENDED_COLOR_FUNCS   0
-#endif  /* defined(NCURSES_EXT_COLORS) && defined(NCURSES_EXT_FUNCS)  */
+#endif
 
 #if _NCURSES_EXTENDED_COLOR_FUNCS
 #define _CURSES_COLOR_VAL_TYPE          int