Check for HP/UX curses problems. Define _XOPEN_SOURCE_EXTENDED and
STRICT_SYSV_CURSES when compiling curses module on HP/UX. Generalize
access to _flags on systems where WINDOW is opaque. Fixes bugs
#432497, #422265, and the curses parts of #467145 and #473150.
diff --git a/Include/py_curses.h b/Include/py_curses.h
index b5f7e54..1b6d2d3 100644
--- a/Include/py_curses.h
+++ b/Include/py_curses.h
@@ -12,6 +12,17 @@
#endif
#endif
+#ifdef HAVE_NCURSES_H
+/* configure was checking <curses.h>, but we will
+ use <ncurses.h>, which has all these features. */
+#ifndef WINDOW_HAS_FLAGS
+#define WINDOW_HAS_FLAGS 1
+#endif
+#ifndef MVWDELCH_IS_EXPRESSION
+#define MVWDELCH_IS_EXPRESSION 1
+#endif
+#endif
+
#ifdef __cplusplus
extern "C" {
#endif