[CMake] lib dependencies

[Thomas Christian Chust]

Hendrik Sattler wrote:

> [...]
> Windows needs the indirect dependencies, same as MacOS X, AFAIK.
> [...]

Hello,

I'm not so sure about the precise architecture on Windows and Linux, but
the MacOS X linker *does not* require indirect dependencies to be
mentioned explicitly when creating an executable.

It is important to mention, though, that MacOS X also uses a multi-level
namespace. So if Application A links to library B, which is linked to
library C, A can access the symbols from B, but *not those from C*,
while B can, even if you didn't link A to C explicitly.

Hence, if your application also accesses functions from auxiliary
libraries used by your primary library dependencies, you *do* have to
link explicitly to the auxiliary dependencies on MacOS X.

cu,
Thomas