[Zlib-devel] Fwd: Zlib static and dynamic libraries for Windows

[Cosmin Truta]

Hi, Andru,

Thanks for your message. You may be happy to find out that we did
this already. You can have a look at zlib-1.2.0.7, which is a release
candidate for zlib-1.2.1.

  http://www.alumni.caltech.edu/~madler/zlib-1.2.0.7.tar.gz

In fact, the entire Windows interface has gone under a massive revision.
Even if you are not interested in using zlib as a DLL, you may find the
contents of "win32/DLL_FAQ.txt" interesting; in particular, see items 8,
9, 10, 11 and 12, which are related to your suggestion.


Best regards,
Cosmin


On Thu, 23 Oct 2003, Mark Adler wrote:

> Microsoft C users,
>
> Attached are some suggestions on the proper options for use with
> Microsoft C.
>
> mark
>
>
> Begin forwarded message:
> > From: "Alexandru Czimbor" <andru at oss.com>
> > Date: Wed Oct 22, 2003  10:50:07 AM America/Los_Angeles
> > To: <zlib at gzip.org>
> > Subject: Zlib static and dynamic libraries for Windows
> >
> > Dear Sir/Madam,
> >
> > We are planning to use the zlib libraries from a toolkit application
> > that
> > must be thread-safe.
> >
> > However, we noticed that the file used for building the static version
> > of the
> > zlib library uses the default flag /ML, which causes the Microsoft
> > linker to
> > link with "libc.lib", a single-threaded library. What is the rationale
> > for not
> > using /MT, in order to link with "libcmt.lib", which is thread-safe?
> >
> > In addition, the dynamic version of the zlib library is built with the
> > /MT
> > option. By linking it with /MD we would avoid having more than 1 copy
> > of the C runtime simultaneously in memory, since /MD causes the
> > Microsoft C
> > runtime DLL to be loaded at run time.
> >
> > For further details, please see
> > http://support.microsoft.com/default.aspx?scid=http://
> > support.microsoft.com:80/support/kb/articles/q140/5/
> > 84.asp&NoWebContent=1
> >
> > As far as I could see, none of the current zlib functionality is
> > likely to cause
> > problems now. However, I believe that linking with /MD is more
> > appropriate.
> >
> >
> > Regards,
> >
> > Alexandru Czimbor                          Toll Free    :
> > 1-888-OSS-ASN1
> > OSS Nokalva                                    International:
> > 1-732-302-0750
> > Email: andru at oss.com                     Tech Support : 1-732-302-9669
> > http://www.oss.com
>
>
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