On Mon, Jul 26, 2010 at 9:21 PM, David Cole <david.c...@kitware.com> wrote: > Olaf, > It's definitely not easy to make such a modification with the current VS > generators. For better or for worse, there are currently separate generators > for Visual Studio 32-bit and 64-bit projects. It would be a major re-working > of those separate generators to combine them into a single one that chose > the architecture at *build* time rather than at configure time.
Why are there two generators? I don't see why the decision has to be made at another time. Configure time is fine with me. > Many projects already have logic in their CMakeLists.txt files that goes > something like this: > if(CMAKE_SIZEOF_VOID_P EQUAL 8) > # do 64-bit stuff at *configure* time... > else() > # 32-bit stuff > endif() > If you make *configure* time decisions based on architecture, then it's not > easy to support multiple architectures without multiple configures. > (Multiple build trees...) Is there a problem with multiple configures / build trees? > Since this is a prevalent scheme that is widely used by folks coming from > single-config, single-architecture (makefile based) build systems... it's > the way CMake has gotten to the point it's at now. I'm not saying this is > good or bad, just explaining that this is the way it is, and that there are > historical reasons why we got to this point. > So.... what you're attempting is probably possible, but it's definitely not > easy. And it will probably require some significant re-work of the existing > code. > Let us know if you have any other specific questions that we can answer for > you. x64 is not a priority for me ATM. Having static configs (static lib, static runtime and static lib, dynamic runtime) is more important. Olaf _______________________________________________ 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
