[CMake] Tricky question once more

[Andreas Pakulat]

On 05.05.09 03:22:16, Denis Scherbakov wrote:
> 
> Once more: I have 3 projects.
> 
> projectA depends on projectB
> projectB depends on SOMEAPP_INCLUDES and SOMEAPP_LIBRARIES
> projectC does not depend on anything
> 
> I have FindSomeApp script that sets SOMEAPP_FOUND
> 
> 1. I want to be able to complete cmake configuration, and build projectC, even if projectB
> and projectA cannot be built. Currently I get an error "The following variables are used in
> this project, but they are set to NOTFOUND."
> 
> 2. My project is very big, so putting everywhere IF-ENDIF is not an option, I need some
> automatic way. I can rewrite ADD_SUBDIRECTORY, though, but how?

The only way to get that is to create a macro which takes a subdir and a
variable name and hides the if/endif ugliness. Then use this macro
everywhere instead of add_subdirectory.

Andreas

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