Cannot install

[atakanozceviz]

gtk 3.18 installed,

$ go install -v -tags gtk_3_18 -gcflags "-N -l" github.com/sourcegraph/webloop/...

Gives me this error:

github.com/sourcegraph/webloop/cmd/static-reverse-proxy
github.com/sourcegraph/webloop/examples/angular-static-seo
# github.com/sourcegraph/webloop/cmd/static-reverse-proxy
/usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/tmp/go-link-138544938/000009.o: In function `removeClosure':
/tmp/go-build/github.com/gotk3/gotk3/glib/_obj/_cgo_export.c:18: multiple definition of `removeClosure'
/tmp/go-link-138544938/000001.o:/tmp/go-build/github.com/conformal/gotk3/glib/_obj/_cgo_export.c:18: first defined here
/tmp/go-link-138544938/000009.o: In function `goMarshal':
/tmp/go-build/github.com/gotk3/gotk3/glib/_obj/_cgo_export.c:35: multiple definition of `goMarshal'
/tmp/go-link-138544938/000001.o:/tmp/go-build/github.com/conformal/gotk3/glib/_obj/_cgo_export.c:35: first defined here
collect2: error: ld returned 1 exit status

# github.com/sourcegraph/webloop/examples/angular-static-seo
/usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/tmp/go-link-378425330/000009.o: In function `removeClosure':
/tmp/go-build/github.com/gotk3/gotk3/glib/_obj/_cgo_export.c:18: multiple definition of `removeClosure'
/tmp/go-link-378425330/000001.o:/tmp/go-build/github.com/conformal/gotk3/glib/_obj/_cgo_export.c:18: first defined here
/tmp/go-link-378425330/000009.o: In function `goMarshal':
/tmp/go-build/github.com/gotk3/gotk3/glib/_obj/_cgo_export.c:35: multiple definition of `goMarshal'
/tmp/go-link-378425330/000001.o:/tmp/go-build/github.com/conformal/gotk3/glib/_obj/_cgo_export.c:35: first defined here
collect2: error: ld returned 1 exit status