[CMake] GTest confusion - linking to project being tested

[cen]

Hi

I am essentially trying to solve this problem: 
https://stackoverflow.com/questions/19886397/how-to-solve-the-error-lnk2019-unresolved-external-symbol-function/30667584#30667584

and I have hit a wall.

Using CMake to generate solution with two VC projects, one is a 
monolithic .exe the other is a gtest project meant to test a few 
functions from the exe.

I am having a problem linking to main project in gtest project because:

1. The project being tested is an exe, not a lib.

2. Ideally I don't want to have all h/cpp files pulled up in the gtest 
project, only have the actual test files in there.

3. Adding the main project as a reference to gtest project didn't help 
(suggestion from SO thread).

4. Manually adding main project .obj files in gtest as linker input 
solves the problem and is essentially the solution I would like to 
achieve with CMake.

5. I hit another unpleasant snafu after #4 because main and gtest 
project implement a main() method and this fails to build. But I guess 
this can be avoided by renaming

the gtest main and changing the entry point of the gtest project.


So if 5 is solvable, what I really need is a CMake solution to #4.. to 
automatically build the tested project and link to it's object files in 
gtest project.


This seems to me to be a really obvious case for testing so I am not 
sure whether it really is that complicated or I am doing things wrong.


Bets regards, cen