John Biddiscombe wrote:
* It should be possible to build multiple variants of multiple targets with multiple compilers from a single build command.
This is the only one that jumped out as being out of order, however, having read the rest of the thread that followed I can say that one approach that works (at least for linux/win32) is that the CMake build step can actually generate scripts which can then be called from another script
This actually isn't necessary. We've been using CMake for a number of years to build libraries and applications for multiple targets from the same source tree. Using CMake '-D' command line options allow variables to be set within CMake. A CMake file can also conditionally include other CMake file fragments. We use this to select cross compile toolsets, different support libraries, (etc). We actually have a directory structure similar to boost where object files are held in compile target specific sub-trees. This all works pretty well but there are a few CMake syntax convenience improvements that would be nice to have (e.g. case statements as well as if-then-else). -glenn