[Asterisk-code-review] BuildSystem: Fix a few issues hightlighted by gcc 6.x (asterisk[certified/11.6])

[Joshua Colp]

Joshua Colp has restored this change.

Change subject: BuildSystem:  Fix a few issues hightlighted by gcc 6.x
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Gerrit-MessageType: restore
Gerrit-Change-Id: I6664d8f34a45bc1481d2a854481c7878b0c1cf8e
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: certified/11.6
Gerrit-Owner: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Anonymous Coward #1000019
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>