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On 05/01/2015 12:01, Roberto Ierusalimschy wrote:
Update: I also ran the the test suite (with _U=true) and everything was
fine. So it seems that those warnings don't imply something went
horribly wrong.

Thanks. Hopefuly the warnings will go away changing -std=c99 to
-std=gnu99.  (This change seems to be safe to all platforms that are
using -std=c99 now.)

I don't know the differences between the two compiler modes, but doesn't this risk of opening the way for non-conformance "bugs" in the future? Maybe a non-C99 GNU GCC feature could slip in and go undetected, or am I missing something?

-- Roberto