[Bug c++/12175] [3.4 Regression] Tru64 UNIX bootstrap failure: multiply defined symbols linking libstdc++.so

[hubicka at ucw dot cz]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12175



------- Additional Comments From hubicka at ucw dot cz  2003-09-28 20:17 -------
Subject: Re:  [3.4 Regression] Tru64 UNIX bootstrap failure: multiply defined symbols linking libstdc++.so

> > Can you also send me the assembly file you get with latest GCC snapshot?
> > You may also try to breakpoint on notice_global_symbol and try to figure
> > out why the symbol passes the tests even tought it is not global.
> 
> Attached is the assembler file.  I will try a quick look at
> notice_global_symbol.
The symbol in question exists and is external symbol.
I am not quite sure what can call notice_global_symbol on external
symbol, but perhaps the attached patch will help.

Index: varasm.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/varasm.c,v
retrieving revision 1.386
diff -c -3 -p -r1.386 varasm.c
*** varasm.c	23 Sep 2003 19:47:00 -0000	1.386
--- varasm.c	28 Sep 2003 20:15:53 -0000
*************** notice_global_symbol (tree decl)
*** 1043,1048 ****
--- 1043,1049 ----
  {
    if ((!first_global_object_name || !weak_global_object_name)
        && TREE_PUBLIC (decl) && !DECL_COMMON (decl)
+       && !DECL_EXTERNAL (decl)
        && (TREE_CODE (decl) == FUNCTION_DECL
  	  || (TREE_CODE (decl) == VAR_DECL
  	      && (DECL_INITIAL (decl) != 0