[llvm-dev] Switching to Ninja

[Andrzej Warzynski via llvm-dev]

On 09/08/2020 16:00, Paul C. Anagnostopoulos via llvm-dev wrote:

> 
> 1. Building with Visual Studio created build/release/bin. Building with Ninja created build/bin (no release directory). Does that make sense? (I have -DCMAKE_BUILD_TYPE=Release on the cmake command.)
> 

Yes. CMake's Visual Studio generators are multiconfig, which means that 
you specify the build type (Release vs Debug etc) when _building_. 
Ninja, by default, is single-config (i.e. you specify build type when 
_configuring_ with CMake).

You can check your generator via CMake's GENERETOR_IS_MULTICONFIG 
(https://cmake.org/cmake/help/v3.18/prop_gbl/GENERATOR_IS_MULTI_CONFIG.html). 
Also, recently CMake added support for multi-config builds for Ninja: 
https://cmake.org/cmake/help/v3.18/generator/Ninja%20Multi-Config.html

-Andrzej