llvm/flang/test/semantics/implicit07.f90

! Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
!
! Licensed under the Apache License, Version 2.0 (the "License");
! you may not use this file except in compliance with the License.
! You may obtain a copy of the License at
!
!     http://www.apache.org/licenses/LICENSE-2.0
!
! Unless required by applicable law or agreed to in writing, software
! distributed under the License is distributed on an "AS IS" BASIS,
! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
! See the License for the specific language governing permissions and
! limitations under the License.

implicit none(external)
external x
call x
!ERROR: 'y' is an external procedure without the EXTERNAL attribute in a scope with IMPLICIT NONE(EXTERNAL)
call y
block
  !ERROR: 'z' is an external procedure without the EXTERNAL attribute in a scope with IMPLICIT NONE(EXTERNAL)
  call z
end block
end