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It seems like the RADS developer ignored their own comment:
pure subroutine rads_init_sat_struct (S)
type(rads_sat), intent(inout) :: S
!
! PURPOSE
! This routine initializes the <S> struct with the bare minimum.
! It is later updated in rads_init_sat_0d.
!
! ARGUMENTS
! S : Satellite/mission dependent structure
!****-------------------------------------------------------------------
! gfortran 4.4.1 segfaults on the next line if this routine is made pure or elemental,
! so please leave it as a normal routine.
S = rads_sat ('', '', '', '', '', null(), '', 1d0, (/13.8d0, nan/), 90d0, nan, nan, nan, 1, 1, rads_noerr, &
0, 0, 0, 0, 0, .false., '', 0, null(), null(), null(), null(), null(), null(), null(), null())
end subroutine rads_init_sat_struct
and made the routine pure again.
Anyway, reduced testcase is:
module rh1356346
type :: T
character(len=160), pointer :: f(:)
end type
contains
pure subroutine foo (x)
type(T), intent(inout) :: x
x = T (null())
end subroutine foo
end
which has been fixed upstream for GCC 4.5 in PR43362.
I think at this point it would be safer to backport just the (resolve_ordinary_assign): Add check to avoid segfault.
change and corresponding part of the testcase (i.e. remove the
z = t3(x) ! { dg-error "Invalid expression in the derived type constructor" }
part of the test), i.e. just avoid the ICE and not impose additional restrictions.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2017-0708.html