gcc-4.9/gcc/testsuite/gfortran.fortran-torture/execute/mainsub.f90


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! Program to test compilation of subroutines following the main program
program mainsub
   implicit none
   integer i
   external test

   i = 0
   call test (i)
   if (i .ne. 42) call abort
end program

subroutine test (p)
   implicit none
   integer p

   p = 42
end subroutine