Move UnixWare 7 defines to acconfig.h, regenerate pyconfig.h.in.
diff --git a/acconfig.h b/acconfig.h
index 0f79c6c..8432f1f 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -242,3 +242,11 @@
#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
#endif
#endif
+
+/* Define the macros needed if on a UnixWare 7.x system. */
+#if defined(__USLC__) && defined(__SCO_VERSION__)
+#define SCO_ACCEPT_BUG /* Use workaround for UnixWare accept() bug */
+#define SCO_ATAN2_BUG /* Use workaround for UnixWare atan2() bug */
+#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
+#endif
+