Description of problem:
gcc hidden visibility doesn't work on rhel5. This blocks kernel build with hidden visibility. I've made a simplified reproduce step for it.

Version-Release number of selected component (if applicable):
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46)

How reproducible:
each time

Steps to Reproduce:
$ cat A.c
void hidden_fn(void) { return; }

$ cat B.c
extern void __attribute__((visibility("hidden"))) hidden_fn(void);
void fn(void) { hidden_fn(); }

$ cat C.c
extern void hidden_fn(void);
void fn(void) { hidden_fn(); }gcc -Wall -O2 -fPIC -c A.c -o A.o
$ gcc -Wall -O2 -fPIC -c B.c -o B.o
$ gcc -Wall -O2 -fPIC -c C.c -o C.o
$ gcc -Wall -O2 -shared -fPIC A.o B.o -o
  
Actual results:
/usr/bin/ld: B.o: relocation R_X86_64_PC32 against `hidden_fn' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value

Expected results:
pass compile

Additional info:
I'd like to know if there's a way to workaround this