This patch prevents a linker testsuite error if the checks are run with a

toolchain that just contains the binutils - ie without a compiler.

	* lib/ld-lib.exp (check_lto_available): Check that a compiler is
	available before testing for LTO support.

ld/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2014-07-07  Nick Clifton  <nickc@redhat.com>
+
+	* lib/ld-lib.exp (check_lto_available): Check that a compiler is
+	available before testing for LTO support.
+
 2014-07-07  Alan Modra  <amodra@gmail.com>
 
 	* config/default.exp: Don't make tmpdir/gas.  Put as symlink into

ld/testsuite/lib/ld-lib.exp

@@ -1666,6 +1666,10 @@ proc check_lto_available { } {
     global CC
 
     if {![info exists lto_available_saved]} {
+        if { [which $CC] == 0 } {
+	    set lto_available_saved 0
+	    return 0
+	}
 	# Check if gcc supports -flto -fuse-linker-plugin
 	set flags ""
 	if [board_info [target_info name] exists cflags] {