--- binutils-2.26/bfd/config.bfd.orig	2016-02-29 14:15:53.000000000 +1100
+++ binutils-2.26/bfd/config.bfd	2016-02-29 15:52:38.000000000 +1100
@@ -169,7 +169,7 @@
 
 # START OF targmatch.h
 #ifdef BFD64
-  aarch64-*-elf)
+  aarch64-*-elf | aarch64-*-rtems*)
     targ_defvec=aarch64_elf64_le_vec
     targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec"
     want64=true
@@ -675,7 +675,7 @@
     targ_selvecs="i386_elf32_vec iamcu_elf32_vec l1om_elf64_vec k1om_elf64_vec"
     want64=true
     ;;
-  x86_64-*-elf*)
+  x86_64-*-elf* | x86_64-*-rtems*)
     targ_defvec=x86_64_elf64_vec
     targ_selvecs="i386_elf32_vec iamcu_elf32_vec x86_64_elf32_vec l1om_elf64_vec k1om_elf64_vec"
     want64=true
--- binutils-2.26/gas/configure.tgt.orig	2016-02-29 16:06:25.000000000 +1100
+++ binutils-2.26/gas/configure.tgt	2016-02-29 16:00:55.000000000 +1100
@@ -6,12 +6,12 @@
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.
@@ -120,7 +120,7 @@
 generic_target=${cpu_type}-$vendor-$os
 # Note: This table is alpha-sorted, please try to keep it that way.
 case ${generic_target} in
-  aarch64*-*-elf)			fmt=elf;;
+  aarch64*-*-elf | aarch64-*-rtems*)	fmt=elf;;
   aarch64*-*-linux*)			fmt=elf em=linux ;;
 
   alpha-*-*vms*)			fmt=evax ;;
@@ -354,7 +354,7 @@
   moxie-*-uclinux)			fmt=elf em=linux ;;
   moxie-*-moxiebox*)                    fmt=elf endian=little ;;
   moxie-*-*)				fmt=elf ;;
-    
+
   mt-*-elf)				fmt=elf bfd_gas=yes ;;
 
   msp430-*-*)				fmt=elf ;;
@@ -463,7 +463,7 @@
   visium-*-elf)				fmt=elf ;;
 
   xstormy16-*-*)			fmt=elf ;;
-  
+
   xgate-*-*)    			fmt=elf ;;
 
   xtensa*-*-*)				fmt=elf ;;
--- binutils-2.26/ld/configure.tgt.orig	2016-02-29 15:49:14.000000000 +1100
+++ binutils-2.26/ld/configure.tgt	2016-02-29 15:51:59.000000000 +1100
@@ -47,7 +47,8 @@
 case "${targ}" in
 aarch64_be-*-elf)	targ_emul=aarch64elfb
 			targ_extra_emuls="aarch64elf aarch64elf32 aarch64elf32b armelfb armelf" ;;
-aarch64-*-elf)		targ_emul=aarch64elf
+aarch64-*-elf | aarch64-*-rtems*)
+			targ_emul=aarch64elf
 			targ_extra_emuls="aarch64elf32 aarch64elf32b aarch64elfb armelf armelfb" ;;
 aarch64-*-cloudabi*)	targ_emul=aarch64cloudabi
 			targ_extra_emuls=aarch64cloudabib ;;
@@ -314,7 +315,8 @@
 			targ_extra_emuls=elf_i386 ;;
 i[3-7]86-*-elf*)	targ_emul=elf_i386
 			targ_extra_emuls=elf_iamcu ;;
-x86_64-*-elf*)		targ_emul=elf_x86_64
+x86_64-*-elf* | x86_64-*-rtems*)
+			targ_emul=elf_x86_64
 			targ_extra_emuls="elf_i386 elf_iamcu elf32_x86_64 elf_l1om elf_k1om"
 			targ_extra_libpath="elf_i386 elf_iamcu elf32_x86_64 elf_l1om elf_k1om"
 			tdir_elf_i386=`echo ${targ_alias} | sed -e 's/x86_64/i386/'`