Patch for NetBSD support in CBackend.cpp

[Krister_Walfridsson]

NetBSD does not have alloca.h, so CBackend.cpp need to handle NetBSD
in the same way as FreeBSD and OpenBSD, as in the attached patch.

    /Krister

CBackend.patch (642 Bytes)

[Chris_Lattner4]

Applied, thanks!
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080107/057128.html

-Chris