[Bug fortran/47030] !GCC$ Attributes do not work for COMMON variables in procedures and BLOCK DATA

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47030

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2015-10-21
     Ever confirmed|0                           |1

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Compiling the first test with -Wall gives the warning

 !GCC$ attributes dllexport :: mydata
                                    1
Warning: Unused variable 'mydata' declared at (1) [-Wunused-variable]

for 5.2.0 and 6.0, without ' [-Wunused-variable]' for 4.8 and 4.9.

Compiling the second test gives

f951: warning: 'dllexport' attribute directive ignored [-Wattributes]

for 4.8 and 4.9 and an ICE for 5.2.0 and 6.0 (pr68040).

I don't get any warning for the third test for 4.8 up to trunk (6.0).