#!/bin/sh
nargs=`echo $1 | wc -w`

if { let $nargs==1  } then {
  flags=
} elif (let $nargs==0 ) then {
  flags='-maxdepth 1'
} else {
  exit 3
} fi
find . $flags -name "*.INC" -or -name "*.F" -or -name "*.inc" -or -name "*.cpp" -or -name "*.c++" -or -name "*.cxx" -or -name "*.f77" -or -name "*.f" -or -name "*.c" -or -name "*.cc" -or -name "*.h" -or -name "*.hh" -or -name "*akefile" | sort