list_add TMPFILES "${TMPFILE}"
#replace "program main_name by subroutine user\_main (and the end clause as well)"
sed 's/[[:space:]]\{6\}[[:space:]]*\(end \)\{0,1\}program[[:space:]]*\([a-zA-Z0-9\-\_]*\)/ \1subroutine user_main /gI;s/[[:space:]]*use[[:space:]]*mpi/\include \"mpif\.h\" /gI' "${ARG}" > "${TMPFILE}"
list_add TMPFILES "${TMPFILE}"
#replace "program main_name by subroutine user\_main (and the end clause as well)"
sed 's/[[:space:]]\{6\}[[:space:]]*\(end \)\{0,1\}program[[:space:]]*\([a-zA-Z0-9\-\_]*\)/ \1subroutine user_main /gI;s/[[:space:]]*use[[:space:]]*mpi/\include \"mpif\.h\" /gI' "${ARG}" > "${TMPFILE}"