Failures on Fedora-ppc64be-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	fedora-ppc64be-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Fedora-ppc64be-m64/builds/3647>

Commit(s) tested:
	0ae534d2cfef358bcde3166ce3a29faf85bc632a

Author(s) (in the same order as the commits):
	Jon Turney <jon.turney@dronecode.org.uk>

Subject:
	Fix C++ build for Cygwin

Testsuite log (gdb.sum and gdb.log) URL(s):
	<Error fetching commit ID for 0ae534d2cfef358bcde3166ce3a29faf85bc632a>