missing dependency for gphoto2

[Glen Overby]

Hi,

The gphoto2 port is missing a dependency of devel/libusb.  This is from a
ports.tar.gz file dated April 14 on FreeBSD 5.4.  I have a lot of output from
configure, etc.  about it, but rerunning:
	 portinstall -w devel/libusb gphoto2
built the port properly, so it doesn't seem necessary.

Glen Overby

* Fatal: libgphoto2_port by default requires libusb to build.
*        You must explicitly disable libusb to build libgphoto2_port without it.
*
* Possible solutions:
*   - call configure with --with-libusb=no or --without-libusb
*   - set PKG_CONFIG_PATH to adequate value
*   - call configure with LIBUSB_LIBS=.. and LIBUSB_CFLAGS=..
*   - call configure with one of the --with-libusb parameters
*   - get libusb and install it

configure: error: /bin/sh './configure' failed for libgphoto2_port
===>  Script "configure" failed unexpectedly.
Please report the problem to ports at FreeBSD.org [maintainer] and attach the
"/usr/ports/graphics/libgphoto2/work/libgphoto2-2.1.99/config.log" including
the output of the failure of your make command. Also, it might be a good idea
to provide an overview of all packages installed on your system (e.g. an `ls
/var/db/pkg`).
*** Error code 1