[CMake] CONFIGURE_FILE won't overwrite existing file?

[Christian Ehrlicher]

Christian Convey schrieb:
> It looks to me like CONFIGURE_FILE is a no-op when the target file
> already exists *and* has the exact same content that it would have if
> CONFIGURE_FILE ran.
> 
> I'm basing me belief by looking running some experiments and looking
> at timestamps.
> 
> But this isn't mentioned in the online docs for CONFIGURE_FILE.
> 
> Does anyone know if it works the way I describe?
> 
That's correct - otherwise all your sources (which includes the config 
file) would get recompiled after each cmake run.

Christian

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