[CMake] A way to set default compiler, etc.?

Alexander Neundorf a.neundorf-work at gmx.net
Thu Sep 20 11:58:44 EDT 2012


On Thursday 20 September 2012, Rolf Eike Beer wrote:
> Am 2012-09-20 15:10, schrieb Dave Abrahams:
> > When I invoke cmake for the first time in a project, I normally use
> > 
> >      -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
> > 
> > I'm tired of typing that every time I blow away my CMakeCache.txt.
> > Is
> > there a place I can register these preferences so I don't have to?
> 
> Don't fiddle with that variables. Ever. CMake will set them during
> toolchain discovery and messing around with them may cause every type of
> havoc if you are unlucky.

doing this on the initial cmake run is fine, it is equivalent to setting the 
CC/CXX environment variables. This is also what is doing when crosscompiling, 
those two variables have to be preset.
 
> export CC=clang
> export CXX=clang++


Yes.

Alex


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