When trying to compile the dependencies of a package needed for testing it (go test -i),
the go tool chokes on the import "C" line.

NOTE: As a work-around, if the user creates an do-nothing package "C" in a
GOPATH or GOROOT directory, then the go tool will proceed to build the dependencies.

What steps will reproduce the problem?
1. Make a package / command that uses cgo
2. go test -i

What is the expected output?
No output to console, but $GOPATH/pkg/ should have dependent packages installed into it.

What do you see instead?
can't load package: C: package could not be found locally

Which compiler are you using (5g, 6g, 8g, gccgo)?
8g

Which operating system are you using?
darwin/x86 (Mac OS X 10.6.8)

Which revision are you using?  (hg identify)
b9ae3df7a5e7 tip

Please provide any additional information below.
Attached is a simple test-case command foo with a dependency on a foo/bar sub-package.

Attachments:

1. foo.zip (794 bytes)