Use out-of-tree build directory for pnacl build

Use out-of-tree build directory for pnacl build

This should allow use to build with other toolchains
without clobbering the build each time.

R=bradnelson@chromium.org

Committed: https://chromium.googlesource.com/webports/+/1c2183a8b92dda3f44b2d9448e48305b0cdfc582

[Sam Clegg, 2016-01-15 20:25:54]

Description was changed from

==========
Cleanup pnacl toolchain build

BUG=
==========

to

==========
Use out-of-tree build directory for pnacl build

This should allow use to build with other toolchains
without clobbering the build each time.
==========

[Sam Clegg, 2016-01-15 20:25:54]

sbc@chromium.org changed reviewers:
+ bradnelson@chromium.org

[bradnelson, 2016-01-15 21:07:09]

lgtm

[Sam Clegg, 2016-01-15 23:16:58]

Description was changed from

==========
Use out-of-tree build directory for pnacl build

This should allow use to build with other toolchains
without clobbering the build each time.
==========

to

==========
Use out-of-tree build directory for pnacl build

This should allow use to build with other toolchains
without clobbering the build each time.

R=bradnelson@chromium.org

Committed:
https://chromium.googlesource.com/webports/+/1c2183a8b92dda3f44b2d9448e48305b...
==========

[Sam Clegg, 2016-01-15 23:16:59]

Committed patchset #3 (id:40001) manually as
1c2183a8b92dda3f44b2d9448e48305b0cdfc582 (presubmit successful).