Some curses functions were removed in 3.12 for macos

[sobolevn]

These two functions are under #ifdef HAVE_NCURSESW macro:

#ifdef HAVE_NCURSESW
/*[clinic input]
_curses.unget_wch

    ch: object
    /

Push ch so the next get_wch() will return it.
[clinic start generated code]*/

static PyObject *
_curses_unget_wch(PyObject *module, PyObject *ch)
/*[clinic end generated code: output=1974c9fb01d37863 input=0d56dc65a46feebb]*/
{
    wchar_t wch;

    PyCursesInitialised;

    if (!PyCurses_ConvertToWchar_t(ch, &wch))
        return NULL;
    return PyCursesCheckERR(unget_wch(wch), "unget_wch");
}
#endif

Which is set via configure:

  if test "$ac_sys_system" != "Darwin"; then
    dnl On macOS, there is no separate /usr/lib/libncursesw nor libpanelw.
    PKG_CHECK_MODULES([CURSES], [ncursesw], [
      AC_DEFINE([HAVE_NCURSESW], [1])
      have_curses=ncursesw
    ], [
      WITH_SAVE_ENV([
        AC_CHECK_LIB([ncursesw], [initscr], [
          AC_DEFINE([HAVE_NCURSESW], [1])
          have_curses=ncursesw
          CURSES_CFLAGS=${CURSES_CFLAGS-""}
          CURSES_LIBS=${CURSES_LIBS-"-lncursesw"}
        ])
      ])
    ])
  fi

It says that macos is not supported anymore.

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉