Re: Using Boost.Test header-only from CMake

From: Edward Diener (eldiener_at_[hidden])
Date: 2021-06-07 16:01:03

On 6/6/2021 9:11 PM, Peter Dimov via Boost wrote:
> Some libraries (I encountered this when porting the tests of Signals2)
> use Boost.Test in header-only mode, by including <boost/test/included/unit_test.hpp>
> without linking to anything. This worked in the "legacy" structure where
> all headers are always available, but doesn't work under CMake where
> you have to link to header-only libraries in order to get the proper include
> path.
> 
> Should we make an attempt to support this use by declaring a special
> header-only target in Boost.Test (e.g. Boost::included_unit_test), or is
> that a waste of time? One can as well link to the proper
> Boost::unit_test_framework (and then even use it header-only, although
> there's not much point in doing so.)
> 
> I'm inclined towards "waste of time".

Since it is totally legitimate to use Boost.Test in header only mode, 
and many libraries currently do this, it is hardly a "waste of time" to 
support this under CMake.