Here's a patch which fixes things in my testing.
diff -Nru gocode-20150303/debian/changelog gocode-20150303/debian/changelog
--- gocode-20150303/debian/changelog 2015-05-27 21:25:48.000000000 +0000
+++ gocode-20150303/debian/changelog 2015-07-27 22:58:17.000000000 +0000
@@ -1,3 +1,9 @@
+gocode (20150303-3) unstable; urgency=medium
+
+ * Fix packaging stuff.
+
+ -- Michael Hudson-Doyle <mwhudson@glamdring> Mon, 27 Jul 2015 22:57:38 +0000
+
gocode (20150303-2) unstable; urgency=medium
* Remove vim-syntax-go from vim-gocomplete dependency list (Closes: #786891)
diff -Nru gocode-20150303/debian/gocode.install
gocode-20150303/debian/gocode.install
--- gocode-20150303/debian/gocode.install 2014-06-22 19:39:07.000000000
+0000
+++ gocode-20150303/debian/gocode.install 2015-07-27 22:56:48.000000000
+0000
@@ -1 +1 @@
-gocode usr/bin
+usr/bin/gocode usr/bin
diff -Nru gocode-20150303/debian/rules gocode-20150303/debian/rules
--- gocode-20150303/debian/rules 2015-04-03 20:32:22.000000000 +0000
+++ gocode-20150303/debian/rules 2015-07-27 22:54:56.000000000 +0000
@@ -1,16 +1,12 @@
#!/usr/bin/make -f
# -*- makefile -*-
-export GOPATH=`pwd`
export DH_GOPKG := github.com/nsf/gocode
%:
dh $@ --buildsystem=golang
-override_dh_auto_build:
- go build -o gocode $(filter-out os_windows.go,$(wildcard *.go))
-
override_dh_auto_clean:
dh_auto_clean
rm -f gocode
