Mozilla is being configured for being built with pthreads but is unable to 
detect the location of the pthreads library (in /usr/pkg/lib).

checking for X11/extensions/XIElib.h... yes
checking for pthread_create in -lpthreads... no
checking for pthread_create in -lpthread... no
checking for pthread_create in -lc_r... no
checking for pthread_create in -lc... no
configure: error:  --with-pthreads specified for a system without pthread 
support
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/www/mozilla
*** Error code 1


Sverre