Fix HP-UX build
Fix HP-UX build

Signed-off-by: Martin Sustrik <4dd6061be1198639e8b05ce4fd5ead7a0dcaa0f4@250bpm.com>

wirebirdlabs/featherweight-nanomsg,snikulov/nanomsg,hyperfact/nanomsg,simplestbest/nanomsg,krafczyk/nanomsg,nirs/nanomsg,JackDunaway/featherweight-nanomsg,simplestbest/nanomsg,thisco-de/nanomsg,cosin2008/nanomsg.NET,modulexcite/nanomsg,potatogim/nanomsg,reqshark/nanomsg,gdamore/mamomsg,kaostao/nanomsg,hyperfact/nanomsg,potatogim/nanomsg,pch957/nanomsg,TTimo/nanomsg,yan97ao/nanomsg,reqshark/nanomsg,pakozm/nanomsg,smithed/nanomsg,TTimo/nanomsg,modulexcite/nanomsg,ttyangf/nanomsg,simplestbest/nanomsg,zerotacg/nanomsg,nirs/nanomsg,pakozm/nanomsg,modulexcite/nanomsg,nirs/nanomsg,krafczyk/nanomsg,ttyangf/nanomsg,linearregression/nanomsg,JackDunaway/featherweight-nanomsg,tempbottle/nanomsg,yan97ao/nanomsg,wfxiang08/nanomsg,potatogim/nanomsg,gdamore/mamomsg,cosin2008/nanomsg.NET,wirebirdlabs/featherweight-nanomsg,zerotacg/nanomsg,pch957/nanomsg,wfxiang08/nanomsg,ttyangf/nanomsg,reqshark/nanomsg,smithed/nanomsg,kaostao/nanomsg,wirebirdlabs/featherweight-nanomsg,snikulov/nanomsg,tempbottle/nanomsg,thisco-de/nanomsg,imp/nanomsg,JackDunaway/featherweight-nanomsg,tempbottle/nanomsg,linearregression/nanomsg,cosin2008/nanomsg.NET,imp/nanomsg,gdamore/mamomsg,pakozm/nanomsg,kaostao/nanomsg,krafczyk/nanomsg,TTimo/nanomsg,featherweight/ftw-kernel-nanomsg,ttyangf/nanomsg,smithed/nanomsg,wfxiang08/nanomsg,smithed/nanomsg,featherweight/ftw-kernel-nanomsg,TTimo/nanomsg,linearregression/nanomsg,hyperfact/nanomsg,kaostao/nanomsg,pch957/nanomsg,zerotacg/nanomsg,yan97ao/nanomsg,imp/nanomsg