On Mon, Mar 26, 2012 at 08:58:15AM +0200, Mark Kettenis wrote:
> > Date: Sun, 25 Mar 2012 23:11:17 -0700
>
> It is GNU "policy" to compile with debug options enabled. Not a bad
> policy, since it makes for easier debugging when you encounter a bug.
> It's the same reason why I always compile my kernels with -g.
But other GNUish programs don't spew when invoked with YYDEBUG=1
in the environment (that I've found). Neither NetBSD's nor Linux's
(CentOS) lds spew.
> Why the origional poster certainly was suprprised, I don't think it's
> a serious issue. I don't think there is a huge overhead, and the
> behaviour has been present since 1995 and I've never seen anybody
> complain about it. And one day, this may become handy.
It is not a serious issue insofar as causing incorrect operation,
I agree. There are easy and obvious workarounds.
As far as "handy", consider:
[djv@aemilia ~ 1:3067]$ cat foo.c
int
main()
{
exit(0);
}
The default make, with YYDEBUG=1 exported:
[djv@aemilia ~ 1:3066]$ make foo 2>&1 | wc
6512 59320 382837
[djv@aemilia ~ 1:3067]$
That's not *handy*. The hazard is in losing real errors and warnings
in the spew.
This is "no biggie", and I brought it up since the devs might have
a policy opinion on the matter. I've been fooling around with yacc
for many a year, and, as you say, haven't had occasion to notice
this before.
Dave
--
"If government had taken over the auto industry in 1920, today we'd
all be driving Model-T cars -- and saying, 'If it weren't for the
government, we'd have no cars at all.'" -- Harry Browne
