! Copyright 2009-2021 Free Software Foundation, Inc.
! 
! This program is free software; you can redistribute it and/or modify
! it under the terms of the GNU General Public License as published by
! the Free Software Foundation; either version 3 of the License, or
! (at your option) any later version.
! 
! This program is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
! GNU General Public License for more details.
! 
! You should have received a copy of the GNU General Public License
! along with this program.  If not, see <http://www.gnu.org/licenses/>.

module mod1
        integer :: var_i = 1
        integer :: var_const
        parameter (var_const = 20)
end module mod1

module mod2
        integer :: var_i = 2
end module mod2

module mod3
        integer :: mod2 = 3
        integer :: mod1 = 3
        integer :: var_i = 3
end module mod3

module modmany
        integer :: var_a = 10, var_b = 11, var_c = 12, var_i = 14
end module modmany

module moduse
        integer :: var_x = 30, var_y = 31
end module moduse

        subroutine sub1
        use mod1
        if (var_i .ne. 1) call abort
        var_i = var_i                         ! i-is-1
        end

        subroutine sub2
        use mod2
        if (var_i .ne. 2) call abort
        var_i = var_i                         ! i-is-2
        end

        subroutine sub3
        USE mod3
        var_i = var_i                         ! i-is-3
        END

        program module

        use modmany, only: var_b, var_d => var_c, var_i
	use moduse, var_z => var_y

        call sub1
        call sub2
        call sub3

        if (var_b .ne. 11) call abort
        if (var_d .ne. 12) call abort
        if (var_i .ne. 14) call abort
        if (var_x .ne. 30) call abort
        if (var_z .ne. 31) call abort
        var_b = var_b                         ! a-b-c-d
end