compile error on openbsd with g++

[Andy Dougherty]

On Fri, 22 Jul 2011, Jonathan "Duke" Leto wrote:

> Howdy,
> 
> To give more info:
> 
> bash-4.0$ gcc --version
> gcc (GCC) 3.3.5 (propolice)
> Copyright (C) 2003 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> bash-4.0$ uname -a
> OpenBSD loulou.esiee.fr 4.6 GENERIC#43 sparc64
> 
> Duke
> 
> 
> On Fri, Jul 22, 2011 at 10:49 AM, Jonathan "Duke" Leto
> <jonathan at leto.net> wrote:
> > Howdy,
> >
> > Just got the openbsd smoker in the farm working again, and it hit a
> > compile error:
> >
> > https://gist.github.com/1099956

Without seeing both the output of Configure.pl --verbose and the 
preprocessed output of src/string/api.c, it's hard to be sure, but this 
looks like the sort of thing you get when parrot's detection of attributes 
is wrong.

In particular, the gcc-3.3/HASATTRIBUTE_UNUSED combination is tricky:  It 
works in gcc-3.3, but fails in g++-3.3.

If would run the preprocessor (g++ -E [all the other flags you have]) on 
src/string/api.c and fiddle with the output to see which specific 
attribute is causing the problem.  Then I'd look at the output of 
Configure.pl [all your flags] --verbose to see why Configure.pl picked 
that flag.

-- 
    Andy Dougherty		doughera at lafayette.edu