[cmake-developers] Introducing the ${Foo_TARGETS} variable (IntroduceTARGETSVariable branch)

[Alexander Neundorf]

On Monday 29 July 2013, Stephen Kelly wrote:
> Alexander Neundorf wrote:
> > So it can be used in tll() calls to link against the library (package).
> > What makes it differ from Foo_LIBRARIES, is that CMake checks that each
> > of the items listed in this variable
> > * is an existing target
> > 
> > * has the INTERFACE_INCLUDE_DIRS property set.
> 
> Are you really certain it is always an error for a target to not set this?

I think so.
If I want to use symbols from a library, I should include its headers, and for 
that the include dirs need to be known.

For header-only libraries even more.

Are there cases where this is not the case ?

Don't know about Fortran.

Alex