Under the old command, the build would fail with:
Step 15/25 : COPY pkgconfig/* /usr/lib/pkgconfig
COPY failed: no source files were specified
The Docker documentation at
https://docs.docker.com/v18.03/engine/reference/builder/
explains:
Note: If you build using STDIN (docker build - < somefile), there is
no build context, so COPY cant be used.
TEST=it built successfully
Change-Id: I4d9fcb085009f4a47d7caecabf6eb711f5cab6b7
Reviewed-on: https://chromium-review.googlesource.com/1431356
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>