tree ae0f08165916752ac852b74dac762eee248adb31
parent 2fd618192985122aafb494ac5e9a39f572ef46fc
author Corentin Wallez <cwallez@chromium.org> 1581707373 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1581707373 +0000

Fix clean CMake builds

Headers only INTERFACE library with generated headers don't work in CMake
because the GENERATED property is local to a directory. Instead we make a
STATIC library with a Dummy cpp file.

INTERFACE libraries can only have INTERFACE sources so the sources get added
to the dependant's list of sources. If these dependents are in another
directory, they don't see the GENERATED property and fail to configure
because the file doesn't exist on disk.

Use this trick for both dawn_headers and dawncpp_headers that are header
only libraries with generated headers.

Bug: dawn:333
Change-Id: Ib0d6dcc5f351a638d1c5360214c0ce14a28fee3e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/15921
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>