Is __imp_reent_data Deprecated? (a.k.a Problem #3 Building Cygwin PostgreSQL)

Is __imp_reent_data Deprecated? (a.k.a Problem #3 Building Cygwin PostgreSQL)

[Jason Tishler]

While building PostgreSQL 7.0.2 on a stock Cygwin 1.1.4, I had problems
during the linking phase because of the attached file contributed by Mumit
Khan.  Specifically, I had an undefined reference to '__imp_reent_data'
due to the following line:

    _impure_ptr = __imp_reent_data;

Reading the comments, I can only assume that '__imp_reent_data' is a
vestige of b19.  If so, what is the appropriate analog for the Net
release?

BTW, searching the archives I found exactly the same problem as
documented by:

    http://sources.redhat.com/ml/cygwin/2000-07/msg00629.html

Unfortunately, there was no response to this post.  Hopefully, I will
be more fortunate.  At least, I can try, try again...

Thanks,
Jason

-- 
Jason Tishler
Director, Software Engineering       Phone: +1 (732) 264-8770 x235
Dot Hill Systems Corporation         Fax:   +1 (732) 264-8798
82 Bethany Road, Suite 7             Email: Jason.Tishler@dothill.com
Hazlet, NJ 07730 USA                 WWW:   http://www.dothill.com

Re: Is __imp_reent_data Deprecated? (a.k.a Problem #3 Building Cygwin PostgreSQL)

[Jason Tishler]

I think that Chris meant to reply to the list too...

On Fri, Sep 22, 2000 at 01:02:17PM -0400, Chris Faylor wrote:
> On Fri, Sep 22, 2000 at 09:37:15AM -0400, Jason Tishler wrote:
> >While building PostgreSQL 7.0.2 on a stock Cygwin 1.1.4, I had problems
> >during the linking phase because of the attached file contributed by Mumit
> >Khan.  Specifically, I had an undefined reference to '__imp_reent_data'
> >due to the following line:
> >
> >    _impure_ptr = __imp_reent_data;
> >
> >Reading the comments, I can only assume that '__imp_reent_data' is a
> >vestige of b19.  If so, what is the appropriate analog for the Net
> >release?
> >
> >BTW, searching the archives I found exactly the same problem as
> >documented by:
> >
> >    http://sources.redhat.com/ml/cygwin/2000-07/msg00629.html
> >
> >Unfortunately, there was no response to this post.  Hopefully, I will
> >be more fortunate.  At least, I can try, try again...
> 
> reent_data is exported by the  cygwin.def file.  Check the sources.
> 
> It looks like the variable is not being correctly *declared* using
> declspec(dllimport).  Changing the source to use that rather than
> trying to kludge the name with an __imp_ naming convention will probably
> solve the problem.

Jason

-- 
Jason Tishler
Director, Software Engineering       Phone: +1 (732) 264-8770 x235
Dot Hill Systems Corporation         Fax:   +1 (732) 264-8798
82 Bethany Road, Suite 7             Email: Jason.Tishler@dothill.com
Hazlet, NJ 07730 USA                 WWW:   http://www.dothill.com

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Re: Is __imp_reent_data Deprecated? (a.k.a Problem #3 Building Cygwin PostgreSQL)

[Jason Tishler]

Chris,

On Fri, Sep 22, 2000 at 01:18:30PM -0400, Jason Tishler wrote:
> On Fri, Sep 22, 2000 at 01:02:17PM -0400, Chris Faylor wrote:
> > reent_data is exported by the  cygwin.def file.  Check the sources.
> > 
> > It looks like the variable is not being correctly *declared* using
> > declspec(dllimport).  Changing the source to use that rather than
> > trying to kludge the name with an __imp_ naming convention will probably
> > solve the problem.

Using your suggestion, I changed the following in src/utils/dllinit.c:

    extern struct _reent *__imp_reent_data;

to:

    extern __declspec(dllimport) struct _reent reent_data;

and the '__imp_reent_data' undefined reference problem was solved.

Thanks,
Jason

-- 
Jason Tishler
Director, Software Engineering       Phone: +1 (732) 264-8770 x235
Dot Hill Systems Corporation         Fax:   +1 (732) 264-8798
82 Bethany Road, Suite 7             Email: Jason.Tishler@dothill.com
Hazlet, NJ 07730 USA                 WWW:   http://www.dothill.com

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RE: Is __imp_reent_data Deprecated? (a.k.a Problem #3 Building Cygwin PostgreSQL)

[Joost Kraaijeveld]

If your purpose is just to get PostgreSQL compiling, you can leave out the
complete initdll source. It is just a replacement around the default
compiler functions, which do exactly what the those default functions do. (I
commented it out by a #ifdef 0 .... #endif so I did not need to edit the
PostgresQL makefile).

Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
email: J.Kraaijeveld@Askesis.nl
web: www.askesis.nl 



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