The --build-directory flag does not work for embedded platforms.
<rdar://problem/39385080>
Created attachment 337808 [details] Patch
rs=me
Created attachment 337813 [details] Patch for landing
Comment on attachment 337813 [details] Patch for landing Clearing flags on attachment: 337813 Committed r230601: <https://trac.webkit.org/changeset/230601>
All reviewed patches have been landed. Closing bug.