[CMake] moving project folder

[David Cole]

Please keep the discussion on list so others may benefit from replies.

You can't presently change the compiler in CMakeLists.txt. And you cannot
change it after any CMake TRY_COMPILE commands have occurred without
starting over...

What you can do is this:
Set the environment variables C and CXX to be the full paths to the C and
C++ compilers that you want to use prior to invoking cmake / ccmake /
CMakeSetup for the first configure.

See the entry regarding CMAKE_C_COMPILER at
http://www.cmake.org/Wiki/CMake_Useful_Variables#Compilers_and_Tools


HTH,
David

On 6/8/07, abhijeet mhatre <abhijeetmhatre at yahoo.com> wrote:
>
> HI David
>  Actually I wanted to change the compiler from g++ to m68k-g++ (compiler
> for motorola architecture) so I just edited CMakeCache.txt where it was
> defined.
>
> I think I did it all wrong and should have put something in CMakeLists.txtinstead of
> CMakeCache.txt.
>
> Could you tell me how to change the compiler in CMakeLists.txt ?
>
> Thanks a lot
>
> Abhijeet
>
>
>
>
>
>
> *David Cole <david.cole at kitware.com>* wrote:
>
> Do *not* distribute CMakeCache.txt. It simply will not work. CMake must be
> run against CMakeLists.txt to produce CMakeCache.txt (and all the rest of
> the initial binary tree) on each target build machine...
>
>
>
> On 6/8/07, abhijeet mhatre <abhijeetmhatre at yahoo.com> wrote:
> >
> > > Hi
> > >   I configure cmake by writing a CMakeLists.txt file in a source
> > folder.
> > > It runs fine.
> > >
> > > Now if I move the folder to some other location, cmake complains that
> >
> > the
> > > files still refer to the previous location. Then I have to edit
> > > CMakeCache.txt and replace the project path at 3-4 there. Then it
> > works
> > > fine.
> > >
> > > Is there any elegant way to do this.
> >
> >
> >
> >
> > >>Do out-of-source builds.  When you want the output to appear somewhere
> > >>else, nuke the output directory and start over.
> >  >>http://www.cmake.org/Wiki/CMake_FAQ
> >  <http://www.cmake.org/Wiki/CMake_FAQ>  You cannot simply move
> >  CMake
> > >>output directories around in the filesystem.  They use hardcoded
> > >>absolute paths for safety, so if you want them somewhere else you must
> > >>regenerate them.
> >
> >
> > Suppose if I want distribute my project with the source code,
> > CMake files and all, how do I do this? I dont mind regenerating
> > build files using "cmake ." but I dont want to edit the CMakeLists.txt
> >
> > and CMakeCache.txt when I distriubute my project. Is this doable?
> >
> > regards
> > Abhijeet
> >
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