[CMake] Re - How can I change the compiler?

["Sören Freudiger"]

Hi Taesoo 
We are also dealing with the mpicxx compiler.
Best way (and the cmake way of doing that) is to change the env viariables CC and CXX.

Because we are often switching between gxx and mpicxx, we are using bash scripts for that purpose:

-------------
#!bash
export CC=/usr/bin/gcc-4.0
export CXX=/usr/bin/g++-4.0

echo CC=$CC
echo CXX=$CXX

#echo rm CMakeCache.txt
rm CMakeCache.txt
ccmake ~/lbm/source/patch2d/testcases/serial/.
-------------

Best SirAnn


Von: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] Im Auftrag von Taesoo Kwon
Gesendet: Sonntag, 22. November 2009 09:36
An: cmake at cmake.org
Betreff: [CMake] How can I change the compiler?


I am sorry that this should be an recurring question. 
But I wasn't able to find any working solution after hours of search.

What I tried is as follows:

/root/CMakeLists.txt

set(CMAKE_CXX_COMPILER mpic++)
set(CMAKE_C_COMPILER mpicc)


project (taesoo_cmu)

add_subdirectory(BaseLib)
add_subdirectory(MainLib)
add_subdirectory(MainLib/luabind-0.7)
add_subdirectory(OgreFltk)


-----------------------

in the OgreFltk directory, project (OgreFltk) and add_executable (OgreFltk ...) is defined. 

cmake .
make VERBOSE=true 

revealed that I am still using c++ instead of mpic++.
What should I change?
Thanks.

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