Loads of undefined reference to `pthread_foo`

[Joe Marcus Clarke]

On Mon, 2003-04-28 at 22:42, Philip Paeps wrote:
> On 2003-04-28 20:46:05 (-0400), Joe Marcus Clarke <marcus at marcuscom.com> wrote:
> > 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'
> > >   [...]
> > > 
> > > 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.
> 
> Mmm, it seems as though www/mod_php4 isn't compiling.  It's giving the same
> errors as above.  From work/php4.3.1/config.log:
> 
> configure:28839: cc -o conftest -O2 -pipe  -I/usr/local/include -DHARD_SERVER_LIMIT=512 -DDOCUMENT_LOCATION="/usr/local/www/data/" -DDEFAULT_PATH="/usr/ local/bin:/bin:/usr/bin" -DACCEPT_FILTER_NAME="httpready" -DMOD_SSL=208114 -DEAPI -DEAPI_MM -DUSE_EXPAT -DNO_IDEA 
>         -L/usr/local/lib 
>         -R/usr/local/lib -L/usr/local/lib conftest.c -ljpeg  -lz -lz -lcrypt -lssl -lcrypto -lm  -lcrypt -lxml2 -lz -liconv -lm 1>&5 
>         /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'
> 
> [Sorry about the long line]
> 
> I'm trying to figure out where in the configure script best to add the
> -pthread bit.

You shouldn't need to.  What does:

xml2-config --libs

report?  It should contain -pthread.

Joe

> 
>  - Philip
-- 
PGP Key : http://www.marcuscom.com/pgp.asc
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