[CMake] Compile CMakeCache.txt into shared library

[Johannes Zarl]

Hi,

I'm not sure if I understand you correctly, but I would guess that in most 
cases you don't need to know _all_ cmake cache variables at runtime.

If you really just need to know some specific variables, you would be much 
better off using a generated header file. See the documentation for configure_file 
for details on this.

In short, you'd make a headerfile config.h.in with lines like this:
#cmakedefine @my_magic_variable@

And in cmakeLists:
configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
                       ${CMAKE_CURRENT_BINARY_DIR}/config.h )

Afterwards, you can include config.h in your shared library and you can use the 
value there...

HTH,
  Johannes


On Wednesday 08 February 2012, 14:34:00, Hänel Nikolaus Valentin wrote:
> Dear Cmake List,
> 
> we would like to include a CmakeCache.txt file into our shared
> library. The reason is, that we would like to know what CMake options
> were used when compiling the library in case we have only the binary.
> 
> Has anyone done something like this before and can give me some
> pointers?
> 
> Thanks for any advice
> 
> Valentin
>