On Wed, Sep 14, 2016 at 12:05:15PM +0200, Stephen Kelly via Development wrote: > I want to understand Qbs and what it can do with a dynamic build graph > which CMake can't do. > there is no such thing, as after full expansion the graph has to be static by definition (the output artifacts are expected to be deterministic, after all). the difference is in when you determine the final graph. as cmake is a meta build tool, it artificially creates two phases. as it creates inputs for static build tools, it has to execute all the dynamic parts itself, which makes the "preparation" phase actually a partial "execution" phase, and thus slower than it is supposed to be.
having said that, qbs also has a "meta" mode, to make ide project generation possible. also, as shown in the bootstrapping discussion, we'll probably need a simple makefile generator as well. and as christian already pointed out, in qbs there is also the fundamental split between preparation and execution phases, only that they could be scheduled much better for individual artifacts (but as also pointed out, this isn't taken advantage of yet). so what it all comes down to is that qbs is, as in pretty much every other regard, simply more elegant than cmake, not a magic solution for problems yet to be found. _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
