Re: DLL export with mingw-w64: currently a no-op

On 05/04/2011 01:25 AM, Johann 'Myrkraverk' Oskarsson wrote:
> On Tue, 03 May 2011 12:40:28 -0000, Andrew Dunstan
> <andrew(at)dunslane(dot)net> wrote:
>
>> Our Makefiles use dlltool and dllwrap to create DLLs. If you used our
>> recommended build method pgxs would do lots of the work for you.
>>
>> I'm not sure why you asked the mingw-w64 team about building a
>> Postgres extension - they are unlikely to know anything much about
>> our build system.
>
> However, they do know about the mingw build tools. In particular, from:
> http://oldwiki.mingw.org/index.php/dllwrap
>
> "dllwrap is a tool to build DLLs. It seems to be deprecated in favour of
> gcc -shared option, but some projects still use it. SQLite, for example."
>
> Armed with this information, it may be prudent review the DLL build
> process in PGXS.
>
> For the record: I originally asked the mingw-w64 team for help to link
> against the 64bit JVM.DLL for which there was no corresponding .def file.
>
>
> Google cache:
>
> http://webcache.googleusercontent.com/search?q=cache:tZkweT_cNQQJ:oldwiki.mingw.org/index.php/dllwrap+mingw+dllwrap&cd=1&hl=is&ct=clnk&gl=is&client=opera&source=www.google.is

OK, but if we want to get rid of using dllwrap we'd need a complete
patch for it. Just changing the definition of the macro without changing
the rest isn't going to cut it, I think. But it might well be worth doing.

cheers

andrew