gcc/testsuite/gfortran.dg/namelist_76.f90

   1 ! { dg-do compile }
   2 !
   3 ! PR 55352: [4.7/4.8 Regression] Erroneous gfortran warning of unused module variable when variable is only used in namelist
   4 !
   5 ! Contributed by <AstroFloyd@gmail.com>
   6
   7 module data
   8   implicit none
   9   integer :: a
  10 end module data
  11
  12 program test
  13   use data, only: a
  14   implicit none
  15   a = 1
  16   call write_data()
  17 end program test
  18
  19 subroutine write_data()
  20   use data, only: a
  21   implicit none
  22   namelist /write_data_list/ a
  23   open(unit=10,form='formatted',status='replace',action='write',file='test.dat')
  24   write(10, nml=write_data_list)
  25   close(10)
  26 end subroutine write_data