linking against pthread for a shared library

[Yuri Pankov]

On Fri, Jul 13, 2007 at 12:34:12AM +0800, Rong-en Fan wrote:
> miwi@ and I are working on solving
> an issue with devel/upnp and misc/ushare
> problem. Essentially, the problem is that
> devel/upnp builds a shared library called
> libthreadutil.so which uses threading library.
> misc/ushare is a consumer of that library.
>
> On 7.x system, if you ldd on libthreadutil.so
> (this is i386)
>
> ./work/libupnp-1.6.0/threadutil/.libs/libthreadutil.so:
>        liblwres.so.30 => /usr/lib/liblwres.so.30 (0x2817d000)
>        libc.so.7 => /lib/libc.so.7 (0x2807e000)
>        libthr.so.3 => /lib/libthr.so.3 (0x2818d000)
>
> But on 6.x and 5.x, you only get (this is amd64)
>
> ./work/libupnp-1.6.0/threadutil/.libs/libthreadutil.so:
>        liblwres.so.10 => /usr/lib/liblwres.so.10 (0x800941000)
>
> So, one needs to pass -pthread when using
> libthreadutil.so. In my understanding, the behavior
> on 7.x is more correct (or reasonable).
>
> Any ideas how to solve this problem?
>
> Regards,
> Rong-En Fan

Sorry if i'm mistaken, but this might be related:
http://lists.freebsd.org/pipermail/freebsd-current/2007-June/073600.html


Yuri
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