Somehow I got blocked by spamhouse.org, don't know how and why...
I wrote PMs with Marshall and am posting the communication here for completeness.
This was the answer I wanted to post:
We want to build CEF 32 bit binaries to use them for JCEFs Java integration.
If both of them would work then we will think about using the dev build settings (if they have significant benefits, e.g. build faster, provide more debug infos, build runs through,...) for development.
Otherwise we will use the release options for our dev builds also (we try to be the closest to the customers installation as possible).
Marshall answered:
Somehow I got blocked by spamhouse.org, don't know how and why...
Is there anything you can do to unblock us?
You should be able to contact spamhouse.org and report the false positive.
We want to build CEF 32 bit binaries to use them for JCEFs Java integration.
You should use the official release build configuration in that case.