Re: writing backend extensions using Visual

Greg Landrum wrote:

>On Fri, 25 Mar 2005 17:57:07 -0500, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
>
>>Greg Landrum <greg.landrum@gmail.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