Fix non POSIX instructions, print errors when they occur
Fix non POSIX instructions, print errors when they occur

casimir/kakoune,danr/kakoune,alexherbo2/kakoune,casimir/kakoune,Somasis/kakoune,ekie/kakoune,jkonecny12/kakoune,jjthrash/kakoune,alexherbo2/kakoune,casimir/kakoune,mawww/kakoune,mawww/kakoune,occivink/kakoune,flavius/kakoune,danr/kakoune,ekie/kakoune,jjthrash/kakoune,occivink/kakoune,mawww/kakoune,flavius/kakoune,jjthrash/kakoune,lenormf/kakoune,danr/kakoune,lenormf/kakoune,Somasis/kakoune,alexherbo2/kakoune,ekie/kakoune,Somasis/kakoune,jkonecny12/kakoune,jkonecny12/kakoune,jjthrash/kakoune,occivink/kakoune,alexherbo2/kakoune,casimir/kakoune,occivink/kakoune,danr/kakoune,jkonecny12/kakoune,ekie/kakoune,lenormf/kakoune,flavius/kakoune,Somasis/kakoune,flavius/kakoune,mawww/kakoune,lenormf/kakoune