#compdef make gmake pmake

local prev="$words[CURRENT-1]" file ret=1

if [[ "$prev" = -[CI] ]]; then
  _files -/
elif [[ "$prev" = -[foW] ]]; then
  _files
else
  file="$words[(I)-f]"
  if (( file )); then
    file="$words[file+1]"
  elif [[ -e Makefile ]]; then
    file=Makefile
  elif [[ -e makefile ]]; then
    file=makefile
  else
    file=''
  fi

  [[ -n "$file" ]] &&
    compadd - $(awk '/^[a-zA-Z0-9][^/ 	]+:/ {print $1}' FS=: $file) && ret=0
  (( ret )) && _files
fi