tree 07377795a720c7192cc60e95e9bc633a88d3b424
parent 274fde9a36bf62f62f9ffda4b178df437649e8bf
author Russ Cox <rsc@golang.org> 1531511750 -0400
committer Russ Cox <rsc@golang.org> 1531784574 +0000

cmd/go: handle relative temp dir

Most programs seem to accept a relative temp dir, as weird as that might be.

Also, the meaning of relative is a little more fluid on Windows:
TMP=\temp is relative (to the current drive) but will work well enough.

Also, Windows GetTempPath automatically converts a relative
%TMP% into an absolute path, so we'd be imposing different
behavior for GOTMPDIR vs TMP.

It seems easier and more consistent to just impose the obvious
meaning than to add an error we can only implement some of
the time.

Originally got here because "cmd/go:" should be"go:" in error message,
but the error message is gone now.

Fixes #23264.

Change-Id: I3c3fb801cbd5e652364f1f62bb3881e9317e3581
Reviewed-on: https://go-review.googlesource.com/123876
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>