nightly tester setup

Daniel Dunbar wrote:

Did you manage to solve your issue yet, I just had the same problem
and found out that the problem was that I had redefined LLVMGCC
which was (eventually) causing LCC1 to get defined to garbage in Makefile.rules.
Since the .bc target depends on the source and LCC1 this was basically
breaking all the rules.

I haven't fixed it yet, but I haven't had the time this week to look into it in detail. What I did find was an error finding the LLVM tools when running make in llvm-test.

I'll get to it later next week.

If this is your problem as well maybe we should try and add some consistency
checks to verify that LCC1 exists in the makefile.

Certainly a good thing, regardless!