re PR target/78336 (powerpc-darwin bootstrap broken (probably by 241930))

        PR target/78336
        * config/rs6000/rs6000.c (rs6000_asm_weaken_decl): Protect
        ASM_OUTPUT_DEF.

From-SVN: r242353

gcc/ChangeLog

+2016-11-13  David Edelsohn  <dje.gcc@gmail.com>
+
+	PR target/78336
+	* config/rs6000/rs6000.c (rs6000_asm_weaken_decl): Protect
+	ASM_OUTPUT_DEF.
+
 2016-11-12  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	PR target/77957

gcc/config/rs6000/rs6000.c

@@ -35673,7 +35673,9 @@ rs6000_asm_weaken_decl (FILE *stream, tree decl,
   fputc ('\n', stream);
   if (val)
     {
+#ifdef ASM_OUTPUT_DEF
       ASM_OUTPUT_DEF (stream, name, val);
+#endif
       if (decl && TREE_CODE (decl) == FUNCTION_DECL
 	  && DEFAULT_ABI == ABI_AIX && DOT_SYMBOLS)
 	{