building phobos fails because of oom

[Robert]

Hi guys!

I just tried to build the current phobos (master branch) in order to try
out a pull request:

	https://github.com/D-Programming-Language/dmd/pull/1660

-> Thanks a lot Kenji!

but the build fails, because it is killed by my dear friend, the
oom-killer. (I have 4 GB of RAM)

Is there any quick and dirty workaround available? Maybe I can tweak
some kernel setting for the oom-killer? How much available memory would
I need for successfully building phobos?

Thanks!

Best regards,

Robert