Failures on Fedora-s390x-m64, branch master

[sergiodj+buildbot@redhat.com]

Buildslave:
	marist-fedora-s390x

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Fedora-s390x-m64/builds/1793>

Commit(s) tested:
	d41401ace01c234f42697e190a2ac95991780626

Author(s) (in the same order as the commits):
	Doug Evans <dje@google.com>

Subject:
	Add some casts for building on musl.

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/cgit/Fedora-s390x-m64/.git/tree/?h=master&id=83abcc8355066c75ec2bc4f16b13799248bf8507>

*** Regressions found ***
============================
new FAIL: gdb.threads/signal-while-stepping-over-bp-other-thread.exp: step (pattern 3)
============================


*** Regressions against the baseline ***
============================
new FAIL: gdb.opt/solib-intra-step.exp: second-hit
PASS -> FAIL: gdb.server/non-existing-program.exp: gdbserver exits cleanly
new FAIL: gdb.threads/signal-while-stepping-over-bp-other-thread.exp: step (pattern 3)
PASS -> FAIL: gdb.threads/watchthreads.exp: threaded watch loop
PASS -> FAIL: gdb.threads/watchthreads.exp: combination of threaded watchpoints = 30
PASS -> FAIL: gdb.trace/mi-traceframe-changed.exp: tfile: tfind 0 again
PASS -> FAIL: gdb.trace/mi-traceframe-changed.exp: tfile: -trace-find frame-number 0
============================


*** Failures that are being ignored ***
============================
FAIL: gdb.base/async-shell.exp: process stopped (timeout)
============================