Patch #1309579: wait3 and wait4 were added to the posix module by Chad J. Schroeder.
This was a fair amount of rework of the patch. Refactored test_fork1 so it
could be reused by the new tests for wait3/4. Also made them into new style
unittests (derive from unittest.TestCase).
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 9c3ca53..8df7f9b 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -670,6 +670,12 @@
/* Define to 1 if you have the <utime.h> header file. */
#undef HAVE_UTIME_H
+/* Define to 1 if you have the `wait3' function. */
+#undef HAVE_WAIT3
+
+/* Define to 1 if you have the `wait4' function. */
+#undef HAVE_WAIT4
+
/* Define to 1 if you have the `waitpid' function. */
#undef HAVE_WAITPID