[CMake] Cross Compiling with cmake 2.8.5

[r.czerny at esa-grimma.de]

Hi all,

I tried to cross-compile an internal application for windows on a linux 
machine,
but failed, because cmake at some point re-start the configure process, 
and
drops the CMAKE_SYSTEM_NAME variable along that way. Attached is a
minimal CMakeLists.txt, which reproduces the problem.

Is there a way to avoid the reconfiguration?

TIA
R. Czerny


Console output:
someone at debian-vm:~/cross/build$ cmake -DCMAKE_SYSTEM_NAME=Windows 
-DCMAKE_C_COMPILER=i586-mingw32msvc-gcc 
-DCMAKE_RC_COMPILER=i586-mingw32msvc-windres ..
-- The C compiler identification is GNU
-- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc
-- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- CC=TRUE CSN=Windows
-- Configuring done
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_RC_COMPILER= i586-mingw32msvc-windres

-- The C compiler identification is GNU
-- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc
-- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- CC=FALSE CSN=Linux
-- Configuring done
-- Generating done
-- Build files have been written to: /home/czerny/Quellen/hospec/foo/foo

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