[Bug fortran/53544] New: Derived-type components in namelist group declaration produces error

[townsend at astro dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53544

             Bug #: 53544
           Summary: Derived-type components in namelist group declaration
                    produces error
    Classification: Unclassified
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: townsend@astro.wisc.edu


Created attachment 27533
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27533
Example program illustrating namelist problem

In the attached example program, the use of derived-type components in the
namelist group declaration causes the following errors:

foo.f90:12.19:

  namelist /bar/ ct%a, ct%b
                   1
Error: Syntax error in NAMELIST statement at (1)
foo.f90:14.17:

  read(*, NML=bar)
                 1
Error: Symbol 'bar' at (1) must be a NAMELIST group name

It is my understanding that the variables in a namelist group declaration must
not be a dummy array with non-constant bound, a variable with non-constant
character length, an automatic object, an allocatable array, a pointer, or have
a component at any depth that is a pointer or is inaccessible. The case in the
example program falls into none of these categories, and therefore should be
accepted by the compiler as valid code.