[Development] CMake Workshop Summary

[Thiago Macieira]

On Thursday, 21 February 2019 02:59:20 PST Kevin Funk wrote:
> So, yep, add_subdirectory() sounds like the way to go; we'll need to check
> how that performs with the amount of existing Qt submodules, though. We
> might need to do a couple more optimizations of the CMake macros/functions
> in qtbase.git for that.

It also means making sure they don't step on each other's toes, but I think 
that a little discipline in writing our CMakeLists.txt should get us there.

But do note that our parallelism isn't that bad right now. There's a long 
critical path before parallel things can currently be built, but once QtQml is 
built, the number of jobs that can be launched in parallel is very big. What 
doesn't need that build isn't very large.

Currently, I can briefly saturate the 276-node Icecream farm at the office for 
a few minutes while QtQuick builds and just after it. Let's see if CMake can 
make it better. It certainly did for KDE back in 4.0, though the biggest gain 
was getting rid of libtool.

PS: the build could be faster if Icecream maintainers reviewed pull requests.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel System Software Products