Re: additional GCC warning flags - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: additional GCC warning flags
Date
Msg-id 200410181721.i9IHL4918398@candle.pha.pa.us
Whole thread Raw
In response to Re: additional GCC warning flags  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-patches
Agreed, I see no harm in adding it now.

---------------------------------------------------------------------------

Tom Lane wrote:
> Neil Conway <neilc@samurai.com> writes:
> > This patch updates configure.in and configure (I re-ran autoconf 2.53).
> > It doesn't introduce any additional warning messages locally (Linux, GCC
> > 3.4), but might do so on some platforms (the code in src/port/ is likely
> > to trigger some warnings, I think). Because of that, I think it is
> > probably best to save this for 8.1
>
> As long as it can only introduce warnings and not errors, I think it is
> fine to apply now.  It might help us flush out some portability issues
> --- we are just coming up on the stage of officially calling for port
> reports for 8.0, so it seems like now is a good time to put it in.
>
> One thing I'd suggest is that the "if test "$GCC" = yes; then"
> conditional go outside the PGAC macros, ie
>
>     if test "$GCC" = yes; then
>         PGAC_PROG_CC_WARN_DECL_AFTER_STMT
>         PGAC_PROG_CC_WARN_OLD_STYLE_DEFN
>         PGAC_PROG_CC_WARN_ENDIF_LABELS
>     fi
>
> as otherwise people with non-gcc compilers will think configure is
> pretty stupid even to be making the tests.
>
> Also, how about removing the conditional CFLAGS hacking from
> Makefile.global.in entirely, and change the above to
>
>     if test "$GCC" = yes; then
>         CFLAGS="$CFLAGS  -Wall -Wmissing-prototypes"
>         PGAC_PROG_CC_WARN_DECL_AFTER_STMT
>         PGAC_PROG_CC_WARN_OLD_STYLE_DEFN
>         PGAC_PROG_CC_WARN_ENDIF_LABELS
>     fi
>
> which localizes the logic a tad more, and keeps the CFLAGS entries in a
> rational-looking order.
>
>             regards, tom lane
>
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