FreeBSD_HEAD_i386 - Build #2619 - Fixed

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FreeBSD_HEAD_i386 - Build #2619 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/2619/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/2619/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/2619/console

Change summaries:

296979 by sjg:
xo_config.h no longer in contrib, so -I's needed

PR:		/homes/sjg/commit-logs/freebsd/libxo/xo_config.diff
Reviewed by:	jkim