[CMake] How to force the configure step to start over

[Diablo 666]

Hi,

> any ideas how to force it directly?

for our projects, I use a variable called RESET_CACHE as a standard.
Every FOOConfig.cmake, FindFoo.cmake, ... uses this variable to force
resetting a lot of cache variables. So it suffices for a project to include
this variable.

Anyway, this does not help resetting variables from outside projects. In this
case I call my old friend rm -rf to the build directory :-)

Best regards,
Andreas

 		 	   		  
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