For this testcase:

namespace N {
  void f();
}

void N::f()
{
  extern int i;
  extern void g();
  i = 1;
  g();
}

namespace N {
  int i;
  void g() { }
}

int main() { }

we end up with unsatisfied references to ::i and ::g.


-- 
           Summary: local extern declaration gets wrong namespace
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: wrong-code, patch
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: jason at gcc dot gnu dot org
        ReportedBy: jason at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43145

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