Loads of undefined reference to `pthread_foo`

[Joe Marcus Clarke]

On Mon, 2003-04-28 at 20:22, Philip Paeps wrote:
> For some obscure reason, I can't get anything to link properly with libxml2
> today.  I keep getting errors like:
> 
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_cond_signal'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_getspecific'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_equal'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_once'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_key_create'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_mutex_unlock'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_self'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_mutex_destroy'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_mutex_lock'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_cond_wait'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_mutex_init'
>   /usr/local/lib/libxml2.so: undefined reference to `pthread_setspecific'
> 
> I don't know what all changed on the box either, perhaps someone could point
> me in the right direction towards debugging this, and preferably fixing it :-)

libxml2 as of 2.5.7 has thread supported enabled by default.  Therefore,
you need to link in -pthread on -STABLE or -lc_r on -CURRENT.  If you're
building your own app, you should be using either pkg-config --libs
libxml-2.0 or gnome-config --libs libxml-2.0 to get the libraries needed
for libxml2.

If this is a port in the system, let me know which one is failing.

Joe

> 
> Things which were linked with libxml2 (such as PHP) die with errors like:
> 
>   /usr/libexec/ld-elf.so.1: /usr/local/lib/libxml2.so.5: Undefined symbol "pthread_once"
> 
> This might be a bit thin, but I've not found anything else so far.  I managed
> to get things to work again by simply not linking with libxml2, but in the
> long run, that obviously doesn't solve the problem.
> 
> I've already portupgraded -Rf textproc/libxml2 without any sort of success.
> 
> Thanks for any help.
> 
>  - Philip [who's supposed to fix things others have broken *sigh*]
-- 
PGP Key : http://www.marcuscom.com/pgp.asc
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