message: add Slackware
diff: @@ -67,7 +67,8 @@ isEmpty(OS){
  LINUX_DISTRO = $$system(lsb_release -si)
  } else:exists(/etc/gentoo-release){
  LINUX_DISTRO = Gentoo
  - }
  + } else:exists(/etc/slackware-version){
  + LINUX_DISTRO = Slackware
  }
  #Apply any special rules for particular distros
  equals(LINUX_DISTRO,"Fedora"){
  