glibc.undefined_static

This works around an old binutils bug, which would delete static
constants out of the code, thus causing undefined symbols. Not sure if
this patch is still needed.

diff -rc libc-orig/stdio-common/psiginfo-define.h libc-new/stdio-common/psiginfo-define.h
*** libc-orig/stdio-common/psiginfo-define.h	2009-04-09 08:12:53.000000000 -0500
--- libc-new/stdio-common/psiginfo-define.h	2009-04-09 08:20:36.000000000 -0500
***************
*** 1,4 ****
! static const union C(codestrs_t_, NOW) {
    struct {
  #define P(n, s) char MF(__LINE__)[sizeof (s)];
  #include "psiginfo-data.h"
--- 1,4 ----
! const union C(codestrs_t_, NOW) {
    struct {
  #define P(n, s) char MF(__LINE__)[sizeof (s)];
  #include "psiginfo-data.h"
***************
*** 8,14 ****
  #define P(n, s) s,
  #include "psiginfo-data.h"
    } };
! static const uint8_t C(codes_, NOW)[] = {
  #define P(n, s) [(n) - 1] = offsetof (union C(codestrs_t_, NOW), MF(__LINE__)),
  #include "psiginfo-data.h"
  };
--- 8,14 ----
  #define P(n, s) s,
  #include "psiginfo-data.h"
    } };
! const uint8_t C(codes_, NOW)[] = {
  #define P(n, s) [(n) - 1] = offsetof (union C(codestrs_t_, NOW), MF(__LINE__)),
  #include "psiginfo-data.h"
  };