[Bug fortran/51995] Polymorphic class fails at runtime

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51995

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-01-25 10:59:09 UTC ---
I confirm that on x86_64-apple-darwin10 from
gcc version 4.6.0 20100723 (experimental) [trunk revision 162456] (GCC) up to
now,
gfortran gives the following errors for the test

pr51995.f90:91.31:

    CALL db_connect%description()
                               1
Error: 'description' at (1) is not a member of the 'connection' structure
pr51995.f90:98.31:

    CALL db_connect%description()
                               1
Error: 'description' at (1) is not a member of the 'connection' structure

while up to
gcc version 4.6.0 20100413 (experimental) [trunk revision 158252] (GCC)
it gives

pr51995.f90:15.28:

     PROCEDURE(generic_desc), DEFERRED, PASS(self) :: description
                            1
Error: Passed-object dummy argument of 'generic_desc' at (1) must not be
POINTER
pr51995.f90:82.23:

    USE factory_pattern
                       1
Fatal Error: Can't open module file 'factory_pattern.mod' for reading at (1):
No such file or directory

Also gcc version 4.6.0 20100506 (experimental) [trunk revision 159106] (GCC)
gives

f951: internal compiler error: in find_typebound_proc_uop, at
fortran/symbol.c:5255
Please submit a full bug report,

So if it has worked, it looks like a transient.