Zitat von Antonio Valentino <[email protected]>:
I would like allow the user to choose whenever to use the system
version of a library or the developer provided one.
In the code snippet below the library is FFTW and its source archive is
bundled together with the project source in the COTS/FFTW sub-folder.
The problem is how to reset the cache variables once the user switches
between USE_INTERNAL_FFTW and NOT USE_INTERNAL_FFTW.
unset()
In the following code snippet there is my tentative solution.
It seems to work but it doesn't looks good to me.
The guard is good to detect a change in the user variable (which could
be given using option().
HS
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