warning: unknown warning option '-Wformat-signedness' [-Wunknown-warning-option]                                                                                                   
warning: unknown warning option '-Wmaybe-uninitialized'; did you mean '-Wuninitialized'?                                                                                           
      [-Wunknown-warning-option]                                                                                                                                                   
mv -f .deps/color-ncurses.Tpo .deps/color-ncurses.Plo                                                                                                                              
tty-ncurses.c:556:5: error: unknown type name 'cchar_t'; did you mean 'wchar_t'?
    cchar_t *ctext;
    ^~~~~~~
    wchar_t
/usr/include/stdlib.h:58:20: note: 'wchar_t' declared here
typedef ___wchar_t      wchar_t;
                        ^
tty-ncurses.c:565:31: error: use of undeclared identifier 'cchar_t'
    ctext = g_malloc (sizeof (cchar_t) * (cols + 1));
                             ^
tty-ncurses.c:569:9: warning: implicit declaration of function 'mvin_wchnstr' is invalid in C99
      [-Wimplicit-function-declaration]
        mvin_wchnstr (y + row, x, ctext, cols);
        ^
tty-ncurses.c:573:13: warning: implicit declaration of function 'getcchar' is invalid in C99
      [-Wimplicit-function-declaration]
            getcchar (&ctext[col], wch, &attrs, &color_pair, NULL);
            ^
tty-ncurses.c:574:13: warning: implicit declaration of function 'setcchar' is invalid in C99
      [-Wimplicit-function-declaration]
            setcchar (&ctext[col], wch, attrs, color, NULL);
            ^
tty-ncurses.c:577:9: warning: implicit declaration of function 'mvadd_wchnstr' is invalid in C99
      [-Wimplicit-function-declaration]
        mvadd_wchnstr (y + row, x, ctext, cols);
        ^
6 warnings and 2 errors generated.
gmake[5]: *** [Makefile:548: tty-ncurses.lo] Error 1
gmake[5]: Leaving directory '/usr/obj/usr/ports/misc/mc/work/mc-4.8.26/lib/tty'
gmake[4]: *** [Makefile:704: all-recursive] Error 1
gmake[4]: Leaving directory '/usr/obj/usr/ports/misc/mc/work/mc-4.8.26/lib'
gmake[3]: *** [Makefile:584: all-recursive] Error 1
gmake[3]: Leaving directory '/usr/obj/usr/ports/misc/mc/work/mc-4.8.26'
gmake[2]: *** [Makefile:514: all] Error 2
gmake[2]: Leaving directory '/usr/obj/usr/ports/misc/mc/work/mc-4.8.26'
===> Compilation failed unexpectedly.