Re: writing backend extensions using Visual

[Andrew Dunstan <andrew(at)dunslane(dot)net>]

Greg Landrum wrote:

> On Fri, 25 Mar 2005 17:57:07 -0500, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>  
>
> > Greg Landrum <greg(dot)landrum(at)gmail(dot)com> writes:
> >    
> >
> > > After playing around for a while, I managed to get a DLL to build and
> > > work at least far enough that I can CREATE and call the functions from
> > > psql.  However, it looks like every argument I pass into the functions
> > > comes in as null (e.g. PG_ARGISNULL returns true). This clearly is
> > > less than helpful. :-)
> > >      
> > Sounds like MSVC is interpreting the layout of the FunctionCallInfo
> > struct differently than the MinGW compiler did.  You should probably
> > look into whether there are "pragma pack" directives lurking in your
> > program.  ("pragma pack" is evil...)
> >    
>
> I've got the library stripped down to the bare minimum (just a couple
> of demo functions) and I can't seem to find any uses of pragma pack,
> so I don't think that's it.
>
>
>  

Do we actually support building backend extensions with anything other 
than our standard build environment? I know we support building libpq 
using MSVC, but that is for client use. I'm not even mildly surprised 
that building a backend extension with MSVC breaks.

cheers

andrew