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Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..."

From: Daniel Berlin
Subject: Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..."
Date: Fri, 29 Dec 2006 14:47:13 -0500

On 29 Dec 2006 20:15:01 +0100, Gabriel Dos Reis
<address@hidden> wrote:
"Daniel Berlin" <address@hidden> writes:

| On 29 Dec 2006 19:33:29 +0100, Gabriel Dos Reis
| <address@hidden> wrote:
| > "Daniel Berlin" <address@hidden> writes:
| >
| > [...]
| >
| > | In fact, what they told me was that since they made their change  in
| > | 1991, they have had *1* person who  reported a program that didn't
| > | work.
| >
| > And GCC made the change recently and got yy reports.  That might say
| > something about both compilers user base.  Or not.
| >
| Right, because the way we should figure out what the majority our
| users want is to listen to 3 people on a developer list instead of
| looking through the means we give users to give feedback, which is
| through bug reports.

And surely, this specific issue did not come from users through a bug

| We've gotten a total of about 10 reports at last count, in the many
| years we've been optimizing this.
| > Please, feel free to ignore those that don't find the transformations
| > appropriate, they are just free software written by vocal minority.
| Wow Gaby, this sure is useful evidence, thanks for providing it.
| I'm sure no matter what argument i come up with, you'll just explain it away.

Not really.  I've come to *agree with you* that we should just ignore
those that don't find the transformation useful for real code: they
are vocal minority.

You can have all the sarcasm you want, but maybe instead of sarcasm,
you should produce real data to contradict our bug reports, and the
experiences of other compilers in the field (note that Seongbae Park
tells me sun had the same level of complaint, i.e., one report, about
their compiler doing this as well).

Basically, your argument boils down to "all supporting data is wrong,
the three people on the mailing list are right, and there are millions
more behind them that just couldn't make it and have never complained
in the past"

Don't buy it.
Put up or shut up for once.

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