From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Marco Atzeri <marco(dot)atzeri(at)gmail(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: narwhal and PGDLLIMPORT |
Date: | 2014-02-16 18:04:10 |
Message-ID: | 20140216180410.GD16983@awork2.anarazel.de |
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Thread: | |
Lists: | pgsql-hackers |
On 2014-02-16 12:57:46 -0500, Tom Lane wrote:
> Marco Atzeri <marco(dot)atzeri(at)gmail(dot)com> writes:
> > On 16/02/2014 15:43, Andres Freund wrote:
> >> Could either of you try whether compiling with the attached hack fixes
> >> anything on cygwin?
>
> > on cygwin32 bit it works, but it stops later on
> > -------------------------------------------
> > sl -lcrypto -lz -lreadline -lcrypt -o psql.exe
> > tab-complete.o:tab-complete.c:(.text+0xa98): undefined reference to
> > `rl_line_buffer'
>
> > on cygwin 64bit, that I was not testing before,
> > something is strange
> > ------------------------------------------------------
> > -lintl -lssl -lcrypto -lcrypt -lldap -lwsock32 -lws2_32 -o postgres
> > postmaster/postmaster.o:postmaster.c:(.rdata$.refptr.environ[.refptr.environ]+0x0):
> > undefined reference to `environ'
That's in this case because it's our own extern, that itself would
probably be fixable, but:
> So what we currently know is that on cygwin, some of the core system
> include files have been declspec'd, but others haven't; and headers
> for third-party libraries like libxml and libreadline mostly haven't.
it's not going to work for the external libraries.
> I'm starting to get the feeling that we're going to have to admit
> defeat and not try to use --disable-auto-import on cygwin builds.
> That platform is evidently not capable of supporting it.
Agreed. It's probably doable if somebody actually using cygwin
themselves would invest a day or two and work on upstreaming the
changes, but it looks painful to do indirectly.
> We seem to be pretty nearly there on getting the MSVC and Mingw builds
> to reliably complain about missing PGDLLIMPORTs, so maybe it's good
> enough if those builds do it.
Is there anything missing on that end?
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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