diff -x CVS -ruN pkgsrc-2017Q1/devel/py-boost/Makefile pkgsrc/devel/py-boost/Makefile
--- pkgsrc-2017Q1/devel/py-boost/Makefile	2017-01-03 14:23:01.000000000 +0100
+++ pkgsrc/devel/py-boost/Makefile	2017-04-13 15:52:50.064652244 +0200
@@ -31,4 +31,5 @@
 # that conflict with the python2 variant.
 post-install:
 	${RM} -f ${DESTDIR}${PREFIX}/lib/libboost_python.*
+	${RM} -f ${DESTDIR}${PREFIX}/lib/libboost_numpy.*
 .endif