Log message:
update libgphoto2 to 2.3.1nb2 - fix typo in patch-aa

Log message:
Patch ptp code to work with (hopefully) all implementations of iconv,
including NetBSD in-tree, pkgsrc and glibc.

Log message:
Fix build on Solaris.
 - There is no configure test for limits.h, just use it.
 - M_READ is a define pulled in from system headers
 - s/= =/=/ in a Makefile

Log message:
libusb is recursively needed on !SunOS.

Log message:
Don't run doxygen, even if it is installed.

Log message:
PLIST fix

Log message:
Changes 2.3.1:

PTP:
   * Fixed a memory leak in continuous Nikon / Canon capture mode.
Bindings:
   * Moved all bindings into separate packages.
Package / System integration:
   * Add README.packaging file.
   * Removed obsolete print-usb-usermap. Use
     "print-camera-list usb-usermap usbcam" instead.
   * Fix libgphoto2 symbol list: Removed gpi_gphoto_port_type_map
   * Add new permission setup script doing class based matching for
     PTP class cameras not listed explicitly by USB IDs.

Changes 2.3.0:

PTP:
   * Improved Nikon remote control
   * Improved Canon file download
	- faster directory retrieval (especially on cameras with lots of files)
	- "new" images are marked (gphoto2 --new, digikam)
   * MTP Playlist support (upload and download)
   * MTP Metadata support (upload and download, Artist, Title, Playtime ... )
   * Lots of other MTP related fixes.
   * MTP autodetection on Microsoft OS Descriptor.
   * New devices:
          Canon PowerShot A540, A530, S3 IS, SD430, SD600, SD700, IXUS 800

Log message:
Change the format of BUILDLINK_ORDER to contain depth information as well,
and add a new helper target and script, "show-buildlink3", that outputs
a listing of the buildlink3.mk files included as well as the depth at
which they are included.

For example, "make show-buildlink3" in fonts/Xft2 displays:

	zlib
	fontconfig
	    iconv
	    zlib
	    freetype2
	    expat
	freetype2
	Xrender
	    renderproto

Log message:
Track information in a new variable BUILDLINK_ORDER that informs us
of the order in which buildlink3.mk files are (recursively) included
by a package Makefile.

Log message:
Fixed pkglint warning.