Prepend vxworks-dummy.h to tm_file for powerpc*

2018-09-20  Olivier Hainque  <hainque@adacore.com>

	* config.gcc (powerpc*-*-*): Prepend vxworks-dummy.h to tm_file.

From-SVN: r264471

gcc/ChangeLog

+2018-09-21  Olivier Hainque  <hainque@adacore.com>
+
+        * config.gcc: Prepend vxworks-dummy.h to tm_file for powerpc*
+
 2018-09-21  Shaokun Zhang  <zhangshaokun@hisilicon.com>
             Bo Zhou  <zbo.zhou@hisilicon.com>
 

gcc/config.gcc

@@ -621,7 +621,7 @@ arm*-*-*)
 	tm_p_file="arm/arm-flags.h ${tm_p_file} arm/aarch-common-protos.h"
 	tm_file="vxworks-dummy.h ${tm_file}"
 	;;
-mips*-*-* | sh*-*-* | sparc*-*-*)
+mips*-*-* | powerpc*-*-* | sh*-*-* | sparc*-*-*)
 	tm_file="vxworks-dummy.h ${tm_file}"
 	;;
 esac