Failures on Fedora-x86_64-native-gdbserver-m64, branch gdb-8.0-branch

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	fedora-x86-64-3

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Fedora-x86_64-native-gdbserver-m64/builds/6230>

Commit(s) tested:
	ce3dd59c3d6e677bb6bbed432205d3a75476f548

Author(s) (in the same order as the commits):
	Eli Zaretskii <eliz@gnu.org>

Subject:
	Avoid compilation warning on MinGW in xstrndup

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Fedora-x86_64-native-gdbserver-m64/ce/ce3dd59c3d6e677bb6bbed432205d3a75476f548/>

*** Diff to previous build ***
============================
PASS -> FAIL: gdb.threads/thread-unwindonsignal.exp: continue until exit
============================


*** Complete list of XFAILs for this builder ***

FAILURE TO OBTAIN THE COMMIT FOR THE XFAIL LIST.  PLEASE CONTACT THE BUILDBOT ADMIN.