diff -ru gdb-7.6/gdb/configure.tgt gdb-7.6.patched/gdb/configure.tgt
--- gdb-7.6/gdb/configure.tgt	2013-03-05 05:37:10.000000000 -0800
+++ gdb-7.6.patched/gdb/configure.tgt	2013-10-01 19:58:55.000000000 -0700
@@ -646,6 +646,11 @@
 			solib-svr4.o symfile-mem.o linux-tdep.o linux-record.o"
 	build_gdbserver=yes
 	;;
+x86_64-*-elf*)
+	# Target: x86-64
+	gdb_target_obs="amd64-tdep.o i386-tdep.o \
+			i387-tdep.o"
+	;;
 x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
 	# Target: FreeBSD/amd64
 	gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o i386-tdep.o \