Fix indirect function pointers on eABI.

From-SVN: r8857

gcc/config/rs6000/rs6000.md

@@ -4587,10 +4587,13 @@
   operands[0] = XEXP (operands[0], 0);
   if (GET_CODE (operands[0]) != SYMBOL_REF)
     {
+#ifndef USING_SVR4_H
+      /* AIX function pointers are really pointers to a three word area */
       rtx temp = gen_reg_rtx (SImode);
 
       emit_insn (gen_call_via_ptr (temp, force_reg (SImode, operands[0])));
       operands[0] = temp;
+#endif	/* !USING_SVR4_H */
     }
 }")
 
@@ -4608,10 +4611,13 @@
   operands[1] = XEXP (operands[1], 0);
   if (GET_CODE (operands[1]) != SYMBOL_REF)
     {
+#ifndef USING_SVR4_H
+      /* AIX function pointers are really pointers to a three word area */
       rtx temp = gen_reg_rtx (SImode);
 
       emit_insn (gen_call_via_ptr (temp, force_reg (SImode, operands[1])));
       operands[1] = temp;
+#endif	/* !USING_SVR4_H */
     }
 }")