Fix for #641455: curses module doesn't build on MacOSX. It turns out the
system headers have two declarations for wchar_t, with different guard macros.
Not sure whether this is a bugfix candidate, that depends on what changed in the
curses module.
diff --git a/Include/py_curses.h b/Include/py_curses.h
index 621dd41..9a89c50 100644
--- a/Include/py_curses.h
+++ b/Include/py_curses.h
@@ -3,6 +3,15 @@
#define Py_CURSES_H
#ifdef HAVE_NCURSES_H
+#ifdef __APPLE__
+/*
+** On Mac OS X 10.2 [n]curses.h and stdlib.h use different guards
+** against multiple definition of wchar_t.
+*/
+#ifdef _BSD_WCHAR_T_DEFINED_
+#define _WCHAR_T
+#endif
+#endif
#include <ncurses.h>
#else
#include <curses.h>