[Solaris] fix build with gcc-4.9

[matlo607]

[matlo607]

Hello,

Is the build on Windows meeting some issues ? The errors are not related at all to my changes and I met exactly the same problem in another pull request (fix-path-test-binaries) on Windows.

24: ======================================================================
24: ERROR: test_ssl_no_name (__main__.ContainerExampleSSLTest)
24: ----------------------------------------------------------------------
24: Traceback (most recent call last):
24:   File "C:/projects/qpid-proton/examples/cpp/example_test.py", line 253, in tearDown
24:     super(ContainerExampleSSLTest, self).tearDown()
24:   File "C:/projects/qpid-proton/examples/cpp/example_test.py", line 108, in tearDown
24:     raise ProcError(b, "broker crash")
24: ProcError: ['broker', '-a', 'APPVYR-WIN:1650'] broker crash, code=-1073740791
24: vvvvvvvvvvvvvvvv
24: broker listening on APPVYR-WIN:1650
24: fixme: dangling listener_maybe_free.  aborting
24: ^^^^^^^^^^^^^^^^
24: 
24: 
24: ----------------------------------------------------------------------
24: Ran 4 tests in 1.391s
24: 
24: FAILED (errors=8)
24/24 Test #24: cpp-example-container-ssl ........***Failed    1.48 sec
88% tests passed, 3 tests failed out of 24
Total Test time (real) =  28.40 sec
The following tests FAILED:
	 10 - cpp-container_test (OTHER_FAULT)
	 23 - cpp-example-container (Failed)
	 24 - cpp-example-container-ssl (Failed)
Errors while running CTest
Command exited with code 8