Re: [boost] CMake Announcement from Boost Steering Committee

Subject: Re: [boost] CMake Announcement from Boost Steering Committee
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2017-07-19 14:59:30

On 19/07/2017 14:57, Alain Miniussi via Boost wrote:

> 
>> I have no problems to switch to CMake if:
>>
>> - Cmake does everything Boost.Build does with the same or less work.
> I just enter 'make' in my build directories, cmake is re-called 
> automatically if necessary. And it does a lot of thing I could not do 
> with bjam (arbitrary feature detection mostly, seems a PITA with bjam).
> And I can switch between all my configurations just by changing the 
> build directory which, when I need to test the cross product of various 
> compilers/MPI, is a huge gain.
> I am not sure how to build an test N configuration at the same time with 
> bjam without having N instance of the code tree. Maybe it's in the 
> tutorial.

I test my libraries with the following lines in windows:

MSVC

b2 -j12 
toolset=msvc-7.1,msvc-8.0,msvc-9.0,msvc-10.0,msvc-11.0,msvc-12.0,msvc-14.0,msvc-14.1 
variant=debug,release address-model=32,64 debug-symbols=on

MINGW

b2 -j12 
toolset=toolset=gcc-3.4c++03,gcc-4.1c++03,gcc-4.2c++03,gcc-4.3c++03,gcc-4.4c++03,gcc-4.5c++03,gcc-4.6c++03,gcc-5.3c++03,gcc-6.1c++03,gcc-6.2c++03,gcc-6.3c++03 
variant=debug,release address-model=32 debug-symbols=on

Not to mention link=static,shared runtime-link=static-shared, and all 
possible combinations. B2 compiles and executes it really fast.

My question as a Boost developer is, can CMake do the same with similar 
performance (time/memory/disk,etc.)?

Best,

Ion