[Bug c++/47529] New: Visibility attributes not supported on Solaris i386 platform

["yuri at tsoft dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47529

           Summary: Visibility attributes not supported on Solaris i386
                    platform
           Product: gcc
           Version: 4.5.2
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: yuri@tsoft.com


I am porting project to Solaris.

Same code that builds fine on Linux/BSD produces warnings on Solaris 10:
warning: visibility attribute not supported in this configuration; ignored

Compilation of modules succeeds with these warnings.

But later linking of those object modules into the shared library fails with
this message:
ld: fatal: relocation error: R_386_GOTOFF: file
/path/to/library/libmine.a(module.o): symbol <some symbol is here>: relocation
must bind locally.
collect2: ld returned 1 exit status

I have built gcc-4.5.2 myself with the same options on both Linux and Solaris.

Why wouldn't visibility attributes not be supported in Solaris configuration?

Also reading some threads from the past I see that these two messages are
somewhat related. Due to the lack of visibility attributes some symbol with
R_386_GOTOFF becomes global and can't be linked into the shared library as
global.

How to solve such problem when c++ code defines some symbols with "hidden"
attributes and Solaris version of gcc fails to support this?