Add dontInstallSrc flag to buildGoPackage

pkgs/development/tools/etcdctl/default.nix

@@ -13,6 +13,8 @@ buildGoPackage rec {
     sha256 = "1kbri59ppil52v7s992q8r6i1zk9lac0s2w00z2lsgc9w1z59qs0";
   };
 
+  dontInstallSrc = true;
+
   meta = with lib; {
     description = "A simple command line client for etcd";
     homepage = http://coreos.com/using-coreos/etcd/;

pkgs/development/tools/gocode/default.nix

@@ -15,6 +15,8 @@ buildGoPackage rec {
 
   subPackages = [ "./" ];
 
+  dontInstallSrc = true;
+
   meta = with lib; {
     description = "An autocompletion daemon for the Go programming language";
     homepage = https://github.com/nsf/gocode;

pkgs/development/tools/golint/default.nix

@@ -16,6 +16,8 @@ buildGoPackage rec {
 
   subPackages = [ "golint" ];
 
+  dontInstallSrc = true;
+
   meta = with lib; {
     description = "Linter for Go source code";
     homepage = https://github.com/golang/lint;

pkgs/development/tools/gotags/default.nix

@@ -15,6 +15,8 @@ buildGoPackage rec {
     sha256 = "1drbypby0isdmkq44jmlv59k3jrwvq2jciaccxx2qc2nnx444fkq";
   };
 
+  dontInstallSrc = true;
+
   meta = with lib; {
     description = "Ctags-compatible tag generator for Go";
     homepage = https://github.com/nsf/gotags;