1! { dg-do run }
2! This tests the fix for PR17917, where equivalences were not being
3! written to and read back from modules.
4!
5! Contributed by Paul Thomas  pault@gcc.gnu.org
6!
7module test_equiv !Bug 17917
8  common /my_common/ d
9  real    a(2),b(4),c(4), d(8)
10  equivalence (a(1),b(2)), (c(1),d(5))
11end module test_equiv
12
13subroutine foo ()
14  use test_equiv, z=>b
15  if (any (d(5:8)/=z)) call abort ()
16end subroutine foo
17
18program module_equiv
19  use test_equiv
20  b = 99.0_4
21  a = 999.0_4
22  c = (/99.0_4, 999.0_4, 999.0_4, 99.0_4/)
23  call foo ()
24end program module_equiv
25