Don't use -Werror by default
Don't use -Werror by default

It may be problematic when compilers add new warnings over time.
./configure && make should always just work.

firepick1/FireSight,simonfojtu/FireSight,AmesianX/jansson,liu3tao/jansson,attie/jansson,rogerz/jansson,akheron/jansson,markalanj/jansson,attie/jansson,rogerz/jansson,firepick1/jansson,slackner/jansson,npmccallum/jansson,markalanj/jansson,Mephistophiles/jansson,simonfojtu/FireSight,firepick1/FireSight,firepick1/jansson,firepick-delta/FireSight,bstarynk/jansson,markalanj/jansson,wirebirdlabs/featherweight-jansson,OlehKulykov/jansson,simonfojtu/FireSight,rogerz/jansson,akheron/jansson,bstarynk/jansson,AmesianX/jansson,firepick1/jansson,slackner/jansson,Mephistophiles/jansson,firepick-delta/FireSight,npmccallum/jansson,bstarynk/jansson,wirebirdlabs/featherweight-jansson,firepick1/FireSight,liu3tao/jansson,chrullrich/jansson,Vorne/jansson,akheron/jansson,chrullrich/jansson,rogerz/jansson,firepick-delta/FireSight,OlehKulykov/jansson,Vorne/jansson