diff -Nru nip2-7.40.4/debian/changelog nip2-7.40.4/debian/changelog
--- nip2-7.40.4/debian/changelog	2014-09-03 01:11:36.000000000 +0000
+++ nip2-7.40.4/debian/changelog	2015-09-17 23:49:11.000000000 +0000
@@ -1,3 +1,9 @@
+nip2 (7.40.4-1+rpi1) stretch-staging; urgency=medium
+
+  * Force linking with libfftw3 (Closes: 799181)
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Thu, 17 Sep 2015 23:48:52 +0000
+
 nip2 (7.40.4-1) unstable; urgency=medium
 
   * New upstream version.
diff -Nru nip2-7.40.4/debian/rules nip2-7.40.4/debian/rules
--- nip2-7.40.4/debian/rules	2014-09-03 01:11:36.000000000 +0000
+++ nip2-7.40.4/debian/rules	2015-09-17 23:48:41.000000000 +0000
@@ -1,5 +1,7 @@
 #!/usr/bin/make -f
 
+export LDFLAGS += -lfftw3
+
 VERSION := $(shell dpkg-parsechangelog | \
              awk '/Version:/ {print $$2}' | cut -d- -f 1)