*** ./gcc/config/rs6000/rs6000.c.ORIG	Thu Mar 22 13:38:15 2012
--- ./gcc/config/rs6000/rs6000.c	Thu Mar 22 13:38:30 2012
***************
*** 11728,11739 ****
  				    NULL_TREE);
    def_builtin ("__builtin_bswap16", ftype, RS6000_BUILTIN_BSWAP_HI);
  
- #if TARGET_XCOFF
-   /* AIX libm provides clog as __clog.  */
-   if ((tdecl = builtin_decl_explicit (BUILT_IN_CLOG)) != NULL_TREE)
-     set_user_assembler_name (tdecl, "__clog");
- #endif
- 
  #ifdef SUBTARGET_INIT_BUILTINS
    SUBTARGET_INIT_BUILTINS;
  #endif
--- 11728,11733 ----
*** ./gcc/config/rs6000/aix52.h.ORIG	Fri Jun 15 20:57:58 2012
--- ./gcc/config/rs6000/aix52.h	Fri Jun 15 20:58:39 2012
***************
*** 121,126 ****
--- 121,128 ----
  #define TARGET_ALTIVEC 0
  #undef  TARGET_ALTIVEC_ABI
  #define TARGET_ALTIVEC_ABI 0
+ #undef  TARGET_EXTRA_BUILTINS
+ #define TARGET_EXTRA_BUILTINS 0
  
  /* Define this macro as a C expression for the initializer of an
     array of string to tell the driver program which options are