Re: branch-1-5: assume AIX compiler understands ##

[Bob Friesenhahn]

On Wed, 7 Feb 2007, Ralf Wildenhues wrote:

> On AIX 4.3.3, building branch-1-5 fails because configure selects
> -qlanglvl=extc89, but that in turn causes __STDC__ not to be defined
> (unlike without -qlanglvl=extc89, or with -qlanglvl=stdc89 instead).
> And of course the build then fails because /**/ isn't recognized as
> string concatenator.
>
> I tested building branch-1-5 with CVS Autoconf, which causes the flag
> to be selected, but I think Autoconf-2.61 does that as well.  (Not sure
> whether this can be considered an Autoconf bug.)
>
> Anyway, I'm not totally sure whether the patch below is the right thing
> to do.  But since `defined (__STDC__) || defined (_AIX)' is used in a
> number of places in ltdl.h, I guess it's good enough, so I applied it.
> I'd appreciate comments though.

This feels like an `old compiler' problem rather than an AIX problem. 
The fix is a bandaid for a problem which is not truely OS specific. 
As such, I am not sure if the patch is the right thing to do but can't 
think of anything better at the moment.

If configure fails to apply -qlanglvl=extc89 does it still work?

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/