Would you like to add the configuration script "[AX_PTHREAD](http://www.gnu.org/software/autoconf-archive/ax_pthread.html)" to [your build specification](https://github.com/google/libkml/blob/93fa575bfc45d52629d522622d4ad6dddaa39d49/configure.ac#L199)?
Would you like to add the configuration script "AX_PTHREAD" to your build specification?