[mlpack-git] [mlpack] Consider disabling -Wunused-parameter in compilation (#377)

[Ryan Curtin]

In 3ad083b I've fixed the `-Wunused-parameter` warnings.  They don't appear under gcc, but I think this may be because gcc might not issue warnings for functions it isn't actually compiling into something.  Just a guess though.  I fixed some `-Wunused-private-field` warnings in fba66e1 and 660fd96.  With those fixes, do you still see warnings?  (Maybe at the level of Armadillo?)

Personally I like fixing warnings, in case downstream projects are compiling with aggressive warning settings (I think RcppMLPACK compiles with `-pedantic`?  I'm not certain though).

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Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/issues/377#issuecomment-69601076
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