pkg/52975: multimedia/mpv doesn't actually have DVD-Video support

[jakllsch%kollasch.net@localhost]

>Number:         52975
>Category:       pkg
>Synopsis:       multimedia/mpv doesn't actually have DVD support
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 03 03:35:00 +0000 2018
>Originator:     Jonathan A. Kollasch
>Release:        NetBSD 7.1.1, pkgsrc-2017Q4
>Organization:
>Environment:
System: NetBSD xenotaph.kollasch.net 7.1.1 NetBSD 7.1.1 (GENERIC.201712222334Z) amd64
Architecture: x86_64
Machine: amd64
>Description:
multimedia/mpv package doesn't have functional DVD-Video support,
despite being presented with the buildlink3.mks therefor at build time
>How-To-Repeat:
mpv --dvd-device=/path/to/directory/of/DVD/filesystem/VIDEO_TS/.. dvd://
note how the DVD does not play as expected.
>Fix:
+WAF_CONFIGURE_ARGS+=	--enable-dvdread --enable-dvdnav