[Freeciv-Dev] Automatic -Wall when gcc is used

[Mitch Davis <mjd@xxxxxxxxxx>]

Dear Freeciv people,

I've found a good reason not to also do -ansi when we turn
-Wall -pedantic on for gcc:  On HP/UX at least, this
"cleans up" any system declarations which _don't_ appear
in the ANSI namespace.  You can turn them back on with
-D_HPUX_SOURCE, but that's not the point:  Configure
shouldn't have to know what -D to do for a particular
platform...

I think we shouldn't have -ansi with gcc.

Regards,

Mitch.
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