$NetBSD$

Correct swig executable.

--- src/swig/python/build.orig	2019-05-08 02:27:10.000000000 +0000
+++ src/swig/python/build
@@ -20,13 +20,13 @@ then
 	ln -sf ../mlt.i
 
 	# Invoke swig
-	swig -c++ -I../../mlt++ -I../.. -python mlt.i || exit $?
+	swig3.0 -c++ -I../../mlt++ -I../.. -python mlt.i || exit $?
 
 	# Compile the wrapper
 	${CXX} -fPIC -D_GNU_SOURCE ${CXXFLAGS} -c -I../.. -I$PYTHON_INCLUDE mlt_wrap.cxx || exit $?
 
 	# Create the module
-	${CXX} ${CXXFLAGS} -shared mlt_wrap.o -L../../mlt++ -lmlt++ -L../../framework -lmlt $(python-config --ldflags) -o _mlt.so || exit $?
+	${CXX} ${LDFLAGS} -shared mlt_wrap.o -L../../mlt++ -lmlt++ -L../../framework -lmlt $(python${PYVERSSUFFIX}-config --ldflags) -o _mlt.so || exit $?
 else
 	echo Python not installed.
 	exit 1