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! { dg-do compile }

!

! PR fortran/37445, in which the contained 'putaline' would be

! ignored and no specific interface found in the generic version.

!

! Contributed by Norman S Clerman < clerman@fuse.net>

!

MODULE M1

  INTERFACE putaline

    MODULE PROCEDURE S1,S2

  END INTERFACE

CONTAINS

  SUBROUTINE S1(I)

      i = 3

  END SUBROUTINE

  SUBROUTINE S2(F)

      f = 4.0

  END SUBROUTINE

END MODULE

MODULE M2

  USE M1

CONTAINS

  SUBROUTINE S3

    integer :: check = 0

    CALL putaline()

    if (check .ne. 1) call abort

    CALL putaline("xx")

    if (check .ne. 2) call abort

!  CALL putaline(1.0) ! => this now causes an error, as it should

  CONTAINS

    SUBROUTINE putaline(x)

      character, optional :: x

      if (present(x)) then

        check = 2

      else

        check = 1

      end if

    END SUBROUTINE

  END SUBROUTINE

  subroutine S4

    integer :: check = 0

    REAL :: rcheck = 0.0

    call putaline(check)

    if (check .ne. 3) call abort

    call putaline(rcheck)

    if (rcheck .ne. 4.0) call abort

  end subroutine s4

END MODULE

  USE M2

  CALL S3

  call S4

END

! { dg-final { cleanup-modules "m1 m2" } }