[Cmake] wxWindows module questions

[Eric Wing]

Hi, I'm trying to use the module: Use_wxWindows.cmake
for Unix (OSX). I've found some issues in the module
that I would like to know more about.

First of all, looking into the code, it looks like the
Windows version will let you select between linking to
the Debug versions of the library or the Release
versions. I was wondering, why doesn't the Unix
version allow this too? (I currently have both
compiled on my computer.)

Second, a more general CMake question, why is it that
only 2 of the WXWINDOWS variables are visible (and
settable) in my Cmake Advanced Options menu. 
The only two I see are:
CMAKE_WXWINDOWS_WXCONFIG_EXECUTABLE
WXWINDOWS_USE_SHARED_LIBS

I was expecting to see things like
CMAKE_WXWINDOWS_CXX_FLAGS, etc (the variables you
directly use to build).

Thanks