http://berklix.com/~jhs/src/bsd/fixes/FreeBSD/ports/gen/www/firefox/Makefile.REL=9.2-RELEASE.diff

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> Subject: Re: ports/186174: add LIB_DEPENDS=  libv4l2 to www/firefox/Makefile
> From: FreeBSD-gnats-submit@@FreeBSD.org
> Date: Mon, 27 Jan 2014 16:00:00 GMT
> To: "Julian H. Stacey" <jhs@@berklix.com>
> 
> Thank you very much for your problem report.
> It has the internal identification `ports/186174'.
> The individual assigned to look at your
> report is: freebsd-ports-bugs. 
> 
> You can access the state of your problem report at any time
> via this link:
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=186174
> 
> >Category:       ports
> >Responsible:    freebsd-ports-bugs
> >Synopsis:       add LIB_DEPENDS=  libv4l2 to www/firefox/Makefile
> >Arrival-Date:   Mon Jan 27 16:00:00 UTC 2014
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Compile broke before my fix below. Error as below.
My fix below is doubtless not quite ideal re. lib Mk/ nomenclature,
MAINTAINER=gecko is invited to improve it please.

# LIB_DEPENDS has been added in 9.3-RELEASE

*** 9.2-RELEASE/ports/www/firefox/Makefile.orig	Thu Sep 26 21:04:39 2013
--- new-generic/ports/www/firefox/Makefile	Mon Jan 27 16:17:24 2014
***************
*** 17,22 ****
--- 17,28 ----
  		${PYTHON_PKGNAMEPREFIX}sqlite3>0:${PORTSDIR}/databases/py-sqlite3 \
  		cairo>=1.10.2_1,1:${PORTSDIR}/graphics/cairo \
  		unzip:${PORTSDIR}/archivers/unzip
+ #		{LOCALBASE}/lib/libv4l2.so.0:${PORTSDIR}/multimedia/libv4l
+ LIB_DEPENDS=	libv4l2:${PORTSDIR}/multimedia/libv4l
+ 
+ # /usr/bin/ld: warning: ../libv4lconvert/libv4lconvert.so.0, needed by /usr/local/lib/libv4l2.so.0, not found (try using -rpath or -rpath-link)
+ # /usr/local/lib/libv4l2.so.0: undefined reference to `v4lconvert_supported_dst_fmt_only'
+ 
  
  USE_AUTOTOOLS=	autoconf213:env
  USE_PYTHON_BUILD=-2.7