🚀 go-pugleaf

I have bought 2006 so far und used up to now 5.
Now some of my projects still does not work.

1.) I'm using PRECONDITION from checks.h. I've got a linker problem that something of that file isn't implemented. Why? And what can I do?

2.) A multiplication with long double does not work. I'm using double most the time, but for temporary multiplications, I'm using long double. The code works fine with version 5, but version 2006 gives me results like 1.34e-44 instead of the correct result -5.?? * -6.???, what is also shown correctly by the debugger.

By the way. It's a fine solution to can do different projects configuration for debug und release! 
3.) But how can I include different *.lib written by myself in the project an he should use in release an other one than in debug.

Mostly, I'm happy about the new version. Please help solving my problems.

Thanks al lot,
   Matthias