$NetBSD: patch-configure.in,v 1.1 2020/10/07 11:10:34 wiz Exp $

* Accept Python 3.x from pkgsrc.

--- configure.in.orig	2020-05-21 22:37:47.000000000 +0000
+++ configure.in
@@ -22,4 +22,4 @@ SRCDIR=$(dirname $0)
 TOPSRCDIR="$SRCDIR"
 export OLD_CONFIGURE="$SRCDIR"/old-configure
 
-exec python3 "$TOPSRCDIR/configure.py" "$@"
+exec ${PYTHON3} "$TOPSRCDIR/configure.py" "$@"