Hello,

Would you like to add the configuration script "AX_PTHREAD" to your build
specification?
http://www.gnu.org/software/autoconf-archive/ax_pthread.html
https://github.com/fenrus75/powertop/blob/86eda5c0851935d5315f604599a0e8f19febc82c/configure.ac#L131

Regards,
Markus