[llvm-dev] Moving to a new machine

James Henderson via llvm-dev
Wed, 24 Feb 2021 08:56:21 -0000

Unless everything is installed in the same location, copying the
CMakeCache.txt likely won't work, as it includes things like paths to
compilers in it, if I remember rightly. I've used diffs to try to identify
which variables I've set before, but in practice, I end up just memorizing
the three or four variables I tend to change from the defaults.

James

On Tue, 23 Feb 2021 at 22:06, Paul C. Anagnostopoulos via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> I've edited CMakeCache.txt so many times that I have no idea what to
> specify on the 'cmake' command line. Should I just guess, run
cmake, copy
> my existing file on top of CMakeCache.txt, and run cmake again?
>
> At 2/23/2021 04:46 PM, Stefanos Baziotis wrote:
> >Hi Paul,
> >
> >Maybe I missed something but why do you need to copy directories if you
> want to build from scratch?
> >Just use the same CMake arguments you used in the original build.
>
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