[RFC] cmake modules and keeping source compatibility

[Christian Ehrlicher]

Sebastian Trüg schrieb:
> As for Soprano is the attached patch ok?
> 
I'd rather have something like

SET(SOPRANO_MINIMUM_VERSION "2.00")
FIND_PACKAGE(Soprano REQUIRED)

and inside FindSoprano.cmake:

if(SOPRANO_VERSION STRLESS "${SOPRANO_MINIMUM_VERSION}")
...




Christian