1! { dg-do compile } 2! { dg-options "-std=f2003" } 3! 4module x 5 use, intrinsic :: iso_c_binding, only: c_double 6 implicit none 7 8 common /mycom/ r, s ! { dg-error "In Fortran 2003 COMMON 'mycom' block at .1. is a global identifier and must thus have the same binding name as the same-named COMMON block at .2.: my_common_block vs .blank.|In Fortran 2003 COMMON 'mycom' block at .1. is a global identifier and must thus have the same binding name as the same-named COMMON block at .2.: my_common_block_2 vs .blank." } 9 real(c_double) :: r 10 real(c_double) :: s 11 bind(c, name="my_common_block") :: /mycom/ 12end module x 13 14module y 15 use, intrinsic :: iso_c_binding, only: c_double, c_int 16 implicit none 17 18 common /mycom/ r, s ! { dg-error "In Fortran 2003 COMMON 'mycom' block at .1. is a global identifier and must thus have the same binding name as the same-named COMMON block at .2.: my_common_block vs .blank." } 19 real(c_double) :: r 20 real(c_double) :: s 21 bind(c, name="my_common_block") :: /mycom/ 22 23 common /com2/ i ! { dg-error " In Fortran 2003 COMMON 'com2' block at .1. is a global identifier and must thus have the same binding name as the same-named COMMON block at .2.: mycom2 vs .blank." } 24 integer(c_int) :: i 25 bind(c, name="") /com2/ 26end module y 27 28module z 29 use, intrinsic :: iso_c_binding, only: c_double, c_int 30 implicit none 31 32 common /mycom/ r, s ! { dg-error "In Fortran 2003 COMMON 'mycom' block at .1. is a global identifier and must thus have the same binding name as the same-named COMMON block at .2.: my_common_block_2 vs .blank." } 33 real(c_double) :: r 34 real(c_double) :: s 35 ! this next line is an error; if a common block is bind(c), the binding label 36 ! for it must match across all scoping units that declare it. 37 bind(c, name="my_common_block_2") :: /mycom/ 38 39 common /com2/ i ! { dg-error " In Fortran 2003 COMMON 'com2' block at .1. is a global identifier and must thus have the same binding name as the same-named COMMON block at .2.: mycom2 vs .blank." } 40 integer(c_int) :: i 41 bind(c, name="mycom2") /com2/ 42end module z 43