Advice on how to compile same framework with n files f_i each generating m_i targets.

[useredsa (Emilio Domínguez Sánchez)]

@ben.boeckel

Some notes:

• your flag manipulation will add an instance of the flags you want to the command line on every reconfigure
  • for -flto, use INTERPROCEDURAL_OPTIMIZATION instead
  • -O3 and -mtune should just be appended to CMAKE_CXX_FLAGS locally; no need to put it into the cache (same with -Wall actually)

To be honest, I would have to read the documentation a little bit more to understand the difference. Right now I am learning things the moment I need them, but I have to read a proper guide.

@ben.boeckel

Factor the common files out into a static library that is reused by each executable.

@ferdnyc

Or, into an OBJECT target that’s linked into each executable.

The problem with this is that at some point the code inside main needs to get an instance of the user class. I am not sure on how to do this. I think the way the Catch library works is by registering each test in some kind of list, is that right? What is the best way to have the different “mains” get the instances of branch predictors they need? Maybe the question should be asked in a C++ forum instead of a CMake forum.