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From: "dimhen at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/52687] New: [LTO] undefined vtable in dynamic library
Date: Fri, 23 Mar 2012 16:57:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52687

             Bug #: 52687
           Summary: [LTO] undefined vtable in dynamic library
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dimhen@gmail.com


GCC trunk [trunk revision 185738], Fedora 16/x64

$ cat foo.cpp
class foo {
   virtual void bar();
   virtual ~foo() {}
};
$ g++ -flto -c foo.cpp -o foo.o && g++ -shared foo.o -flto -o libfoo.so && nm
-D -C -u libfoo.so foo.o | grep foo
libfoo.so:
                 U vtable for foo
foo.o:
nm: foo.o: No symbols

native F16/x64 gcc-4.6.3 do the same