[Bug middle-end/20218] Can't use __attribute__ ((visibility ("hidden"))) to hide a symbol

[pluto at agmk dot net]

------- Additional Comments From pluto at agmk dot net  2005-05-16 01:42 -------
(In reply to comment #16)  
> I posted an updated patch  
>   
> http://gcc.gnu.org/ml/gcc-patches/2005-05/msg00391.html  
>   
> It works for me on ia32, ia64 and x86_64.  
  
with this version of the patch gcc builds fine on x86_64. 
PR20218 testcase works, PR21382 testcase still fails.  
 
# gcc-4.0.1-20050514 + patches for PR19664,PR20218.  
  
(...)  
.libs/IexBaseExc.o: In function `Iex::BaseExc::~BaseExc()':  
IexBaseExc.cpp:(.text+0x59): undefined reference to  
`std::basic_string<char, std::char_traits<char>,  
 std::allocator<char> >::~basic_string()'  
/usr/bin/ld: .libs/IexBaseExc.o: relocation R_X86_64_PC32 against `_ZNSsD1Ev'  
can not be used when making a shared object; recompile with -fPIC  
/usr/bin/ld: final link failed: Bad value  
collect2: ld returned 1 exit status  
(...)  
 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20218