[CMake] Strange options for Sun Studio compiler

[Doug Henry]

Before I commit anything, I would like to verify how cmake is doing its
compiler detection.  Is everything simply based on name?  I can have cc in
my path which is gcc, or I can set my path in a way that has cc from sun
studio.  Is cmake capable of telling the difference?  I have a problem where
I could have f77 from either set of compilers but each requires different
compiler options.  Can this be done using cmake?


On 10/25/06, Brad King <brad.king at kitware.com> wrote:
>
> Doug Henry wrote:
> > I noticed that the default options for build mode may be a bit strange
> > for sun compilers.  The release mode uses -xO2 and the minimum size mode
> > uses -xO3 (higher optimization level?).  There seems to be an option
> > -xspace which reads:
> >
> > -xspace               Do not do optimizations that increase code size
> >
> > However, I am not familiar with older versions of the sun compilers to
> > know if this option is available.
>
> Please include this in your Linux-CC.cmake that you post to the feature
> request I mentioned in the other response.  Since no one has used this
> compiler before I don't mind including the option until someone
> complains their version doesn't have it.
>
> Thanks,
> -Brad
>
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