Should warnings be issued for unrecognised pragmas ?

[Joe Buck]

> > From: Joe Buck <jbuck@synopsys.com>
> > Date: Sat, 18 Oct 97 12:55:55 PDT
> > 
> > Because large numbers of people use -Wall all the time on every build,
> > no warning should be added to -Wall that cannot be suppressed without
> > making the code worse.  Since it's easy to supress compiler-specific
> > pragmas belonging to other compilers with #ifdef __Green_Hills__ or
> > the like, I don't care in this case whether -Wall objects or not.
> > So -Wunrecognized_pragmas could be in -Wall.  On the other hand,
> > some of the "Effective C++" warnings can't be suppressed without
> > making some classes needlessly larger, so they can't be in -Wall.
> > 
> 
> Can you tell me what these pragmas are, then I can make sure that the
> patch will not generate warnings for them.  I assume that it is OK for
> GCC to ignore these pragmas ?

You misunderstood me, I think.  I have no problem with warning about
all unrecognized pragmas in -Wall .  I was just talking about general
philosophy (put stuff in -Wall only if the user can always avoid the
warning without penalty).