[Bug c++/16218] New: Link problems with inline virtual function in multiple translation units

["derrick at cco dot caltech dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

I cannot link programs with multiple .o files when there is a virtual function defined inline in the header 
file. E.g.
X.h:
class X {
  virtual void f();
};

inline void X::f() { }

X.cc:
#include "X.h"

Y.cc:
#include "X.h"

int main() { }

g++ -v -o X X.cc Y.cc
Reading specs from /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/specs
Configured with: ../gcc-3.4.0/configure --prefix=/Users/derrick/gnu/gcc-3.4.0
Thread model: posix
gcc version 3.4.0
 /Users/derrick/gnu/gcc-3.4.0/libexec/gcc/powerpc-apple-darwin7.3.0/3.4.0/cc1plus -quiet -v 
-D__DYNAMIC__ X.cc -fPIC -quiet -dumpbase X.cc -auxbase X -version -o /var/tmp//cchzTFoc.s
ignoring nonexistent directory "/Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/
3.4.0/../../../../powerpc-apple-darwin7.3.0/include"
#include "..." search starts here:
#include <...> search starts here:
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../../../include/c++/
3.4.0
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../../../include/c++/
3.4.0/powerpc-apple-darwin7.3.0
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../../../include/c++/
3.4.0/backward
 /usr/local/include
 /Users/derrick/gnu/gcc-3.4.0/include
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/include
 /usr/include
End of search list.
GNU C++ version 3.4.0 (powerpc-apple-darwin7.3.0)
        compiled by GNU C version 3.4.0.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
 as -arch ppc -o /var/tmp//ccGAUkl2.o /var/tmp//cchzTFoc.s
 /Users/derrick/gnu/gcc-3.4.0/libexec/gcc/powerpc-apple-darwin7.3.0/3.4.0/cc1plus -quiet -v 
-D__DYNAMIC__ Y.cc -fPIC -quiet -dumpbase Y.cc -auxbase Y -version -o /var/tmp//cchzTFoc.s
ignoring nonexistent directory "/Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/
3.4.0/../../../../powerpc-apple-darwin7.3.0/include"
#include "..." search starts here:
#include <...> search starts here:
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../../../include/c++/
3.4.0
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../../../include/c++/
3.4.0/powerpc-apple-darwin7.3.0
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../../../include/c++/
3.4.0/backward
 /usr/local/include
 /Users/derrick/gnu/gcc-3.4.0/include
 /Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/include
 /usr/include
End of search list.
GNU C++ version 3.4.0 (powerpc-apple-darwin7.3.0)
        compiled by GNU C version 3.4.0.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
 as -arch ppc -o /var/tmp//cchMiW9x.o /var/tmp//cchzTFoc.s
 /Users/derrick/gnu/gcc-3.4.0/libexec/gcc/powerpc-apple-darwin7.3.0/3.4.0/collect2 -arch ppc 
-dynamic -o X -lcrt1.o -lcrt2.o -L/Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/
3.4.0 -L/Users/derrick/gnu/gcc-3.4.0/lib/gcc/powerpc-apple-darwin7.3.0/3.4.0/../../.. /var/tmp//
ccGAUkl2.o /var/tmp//cchMiW9x.o -lstdc++ -lgcc_s -lgcc -lSystem |
 c++filt
/usr/bin/ld: multiple definitions of symbol typeinfo for X
/var/tmp//ccGAUkl2.o definition of typeinfo for Xin section (__DATA,__const)
/var/tmp//cchMiW9x.o definition of typeinfo for Xin section (__DATA,__const)
/usr/bin/ld: multiple definitions of symbol typeinfo name for X
/var/tmp//ccGAUkl2.o definition of typeinfo name for Xin section (__TEXT,__const)
/var/tmp//cchMiW9x.o definition of typeinfo name for Xin section (__TEXT,__const)
/usr/bin/ld: multiple definitions of symbol vtable for X
/var/tmp//ccGAUkl2.o definition of vtable for Xin section (__DATA,__const)
/var/tmp//cchMiW9x.o definition of vtable for Xin section (__DATA,__const)
collect2: ld returned 1 exit status

-- 
           Summary: Link problems with inline virtual function in multiple
                    translation units
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: derrick at cco dot caltech dot edu
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: powerpc-apple-darwin7.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16218