$NetBSD: patch-Modules_makesetup,v 1.1 2020/10/10 20:20:12 adam Exp $

Support -pthread compiler flag.
http://bugs.python.org/issue21461

--- Modules/makesetup.orig	2008-06-11 05:26:20.000000000 +0000
+++ Modules/makesetup
@@ -166,6 +166,7 @@ sed -e 's/[ 	]*#.*//' -e '/^[ 	]*$/d' |
 			-rpath)		libs="$libs $arg"; skip=libs;;
 			--rpath)	libs="$libs $arg"; skip=libs;;
 			-[A-Zl]*)	libs="$libs $arg";;
+			-pthread)	libs="$libs $arg";;
 			*.a)		libs="$libs $arg";;
 			*.so)		libs="$libs $arg";;
 			*.sl)		libs="$libs $arg";;