Failures on Debian-s390x-native-gdbserver-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	debian-jessie-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Debian-s390x-native-gdbserver-m64/builds/4197>

Commit(s) tested:
	ad32986fdf9da1c8748e47b8b45100398223dba8

Author(s) (in the same order as the commits):
	Nick Clifton <nickc@redhat.com>

Subject:
	Fix null pointer dereferences when using a link built with clang.

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Debian-s390x-native-gdbserver-m64/ad/ad32986fdf9da1c8748e47b8b45100398223dba8/>