hg: jdk9/dev: 8037825: Fix warnings and enable "warnings as errors" in serviceability native libraries

[staffan.larsen at oracle.com]

Changeset: 1cf2abab835f
Author:    sla
Date:      2014-03-21 09:35 +0100
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/1cf2abab835f

8037825: Fix warnings and enable "warnings as errors" in serviceability native libraries
Reviewed-by: erikj, ihse

! common/autoconf/flags.m4
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in