On Thu, 1 Jun 2017, Jonathan Wakely wrote:
No, the goal of -pedantic-errors is not to be a portability checker or conformance tester. It's to disable standard-conflicting GNU extensions so that you get an error when the standard requires a diagnostic.
On the other hand, we have -Wc90-c99-compat "Warn about features not present in ISO C90, but present in ISO C99." which might be an ok place to add a warning about stdint.h (or not).
-- Marc Glisse
