[vorbis] Trying to figure out the library...

[Shon Ferguson]

>>Actually, I'd love to put this in the FAQ.  Can someone explain very
clearly
what the problem was and what the solution was to a non-Windows
programmer?  Thanks.

I'm still trying to figure out exactly why I had to make my app use the
multi-threaded safe version of the Windows library to use the OGG libs.  I
use all sorts of libs with DirectX and can still optionally choose one or
the other.  Unless Ogg is multi-threaded (Can you do that and be cross
platform?) The closest thing I can find to a possible answer is the
context-help text that I get when I click on the library selection box in
MSVC++ which reads:

"This option determines whether the program being built has single or
multi-threaded support.  This setting changes the value of the /MD, /ML, and
/MT compiler switches.  It is usually best to use the mutli-threaded options
when building a DLL.  If you specify a single-threaded option, your DLL will
work reliably only when called by single-thread applications."

But I'm sure the people who helped me know why the mutli-threaded DLL
version of the libraries is required.  Perhaps it has something to do with
the way it was compiled originally as I am using this pre-compiled version.

At any rate, the solution, in MSVC++ 6.0, is to go to 'Project ->
Settings... [Alt+F7]', click the 'C/C++' tab in the resulting dialog, choose
'Code Generation' from the 'Category' drop down on that tab page, and choose
'Multithreaded DLL' from the 'Use runtime library.'

That will cause MSVC++ to link in the Multithreaded DLL versions of the
Windows library files rather than the ones optimized for single threaded
apps, or debugging, or even the standard Multithreaded libraries (which seem
to cause link errors).

Also you may want to note that to use the lib files you either have to
include them in the project directly or list them in 'Project ->
Settings...', 'Link' tab, 'Project Options' text box.  I believe there is a
pre-compiler directive to do this as well but I can't recall it.

Hope that helps :)

--Shon

<p><p>-----Original Message-----
From: owner-vorbis at xiph.org [mailto:owner-vorbis at xiph.org]On Behalf Of
volsung at asu.edu
Sent: Monday, April 08, 2002 1:59 AM
To: vorbis at xiph.org
Subject: RE: [vorbis] Trying to figure out the library...

<p>On Sun, 7 Apr 2002, Shon Ferguson wrote:

> >>Make sure you're using Multithreaded DLL of the RT libs.
>
> Aah hah!  I love you! ::chortles::
>
> That really should be in a FAQ somewhere... or maybe I just missed it.  At
> any rate, thanks!

Actually, I'd love to put this in the FAQ.  Can someone explain very clearly
what the problem was and what the solution was to a non-Windows
programmer?  Thanks.


---
Stan Seibert

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