The only way I found to control which compiler is used while run ctest is over the environment:

export MAKECOMMAND=/usr/local/bin/ninja
export PATH=/Developer/usr/bin/:/usr/bin:/bin:/usr/sbin:/sbin:/usr/ local/bin:/usr/X11/bin
export CC="/opt/local/libexec/ccache/gcc-4.0"
export CXX="/opt/local/libexec/ccache/g++-4.0"
/usr/local/bin/cmake -G "Ninja" -DCMAKE_TEST_GENERATOR:STRING="Ninja" \
    -DCMAKE_MAKE_PROGRAM:FILEPATH="${MAKECOMMAND}" \
-DCMAKE_TEST_MAKEPROGRAM:FILEPATH="${MAKECOMMAND}" - DCMAKE_ENABLE_NINJA:BOOL="ON" \
    -DCMAKE_C_COMPILER=${CC} -DCMAKE_CXX_COMPILER=${CXX} \
    -DCMAKE_LINKER:FILEPATH=/usr/bin/ld \
    -DCMAKE_AR:FILEPATH=/usr/bin/ar \
    -DCMAKE_RANLIB:FILEPATH=/usr/bin/ranlib \
    -DMAKECOMMAND:STRING="${MAKECOMMAND}" \
    ../cmake

And still there is the question how to prevent the run of Architecture and ObjC++ tests when I use the mac port gcc-4.7?

The following tests FAILED:
         58 - Architecture (Failed)
        130 - ObjC++ (Failed)

On 08.07.2012, at 12:04, Claus Klein wrote:


On 07.07.2012, at 21:34, Nicolas Desprès wrote:

I advice you to install the Apple command line tools for xcode and
stop to use gcc.

I have removed the path to /opt/local/bin and tested xcode without ninja:
http://open.cdash.org/viewTest.php?onlyfailed&buildid=2423850

It is not clear to me what is intended with cmake selftest?

* If Xcode generator is selected, sure the Bundle and other Xcode test should run

* If I configure a different tool chain, i.e. mac port gcc-4.7 with all tool under /opt/local/bin,
        it is an ERROR to run Bundle, Architecture, and ObjC++ tests!

Perhaps I must set a different CMAKE_SYSTEM_NAME, but which one?

#FIXME   -DCMAKE_SYSTEM_NAME=Darwin-GNU \
 -DCMAKE_C_COMPILER=/opt/local/libexec/ccache/gcc \
 -DCMAKE_CXX_COMPILER=/opt/local/libexec/ccache/g++ \

IMO it is a use case like cross compiling!
I need a chance to control what happens.

Claus

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