I guess that's fair; but what appears to be happening is that it's deleting the cache even if the -D compiler string is the same as what's already in Cache.
On Mon, May 23, 2011 at 4:45 PM, David Cole <[email protected]> wrote: > On Mon, May 23, 2011 at 5:37 PM, kent williams <[email protected]> > wrote: >> >> Ran into this with CMake 2.8.4 on Linux -- though apparently not on my >> OS X machine, go figure. >> >> I had a nightly build shell script that as a matter of course set >> CMAKE_C_COMPILER and CMAKE_CXX_COMPILER on the command line. I was >> getting mysteriously unnamed builds in our Dashboard. >> >> What I traced it down to: >> >> When I ran cmake in a batch that sets the compiler variables, cmake >> decided that the compilers had been changed and deleted the cache and >> reran itself. Unfortunately it also forgot BUILDNAME -- which I also >> set on the command line, and the BUILDNAME reverted to its default >> value (set in my top level CMakelists.txt) of UNKNOWN-build. >> >> So is there any way not to descend into this hell of deleted cache >> variables? >> _______________________________________________ >> Powered by www.kitware.com >> >> Visit other Kitware open-source projects at >> http://www.kitware.com/opensource/opensource.html >> >> Please keep messages on-topic and check the CMake FAQ at: >> http://www.cmake.org/Wiki/CMake_FAQ >> >> Follow this link to subscribe/unsubscribe: >> http://www.cmake.org/mailman/listinfo/cmake > > If you start with a clean build tree, there shouldn't be a problem. > > If you start with a non-clean build tree, be sure to use the same compiler > used last time. > > Neither of those ways should descend into hell. If you prove me wrong, I > will bring you a cold beer in hell. > > Also, I would recommend using the environment variables CC and CXX to set > the compiler. CMake only even looks at those env vars if the compiler is not > already cached in the first place. If you pass them in via -D args, then > those -D args override what's in the cache... > > > :-) > David > > _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
