[LLVMdev] make fails to detect changes in case srcdir != objdir

Anton Korobeynikov anton at korobeynikov.info
Tue Jan 5 12:48:11 PST 2010

\>> I've done these:
>>       1) configure --enable-targets=x86
>>       2) make
>>       3) configure --enable-targets=all
>>       4) make
>> and after it I still did not had e.g. C backend.
> Ah.  I actually don't know what configure does in that case.  I suppose
> it depends on what .in files actually use the target list.  This could be
> a real problem, I just don't know enough about the build system to be sure.
I think in this situation the second configure uses the cached stuff
from the first run...

With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

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