110060 – [patch] ports/graphics/graphviz plugins do not work

no flags

Graphviz' plugins to not work, making most common graphics formats
inaccessible. For example:

# dot -Tpng
Renderer type: "png" not recognized. Use one of: dia dot fig hpgl mif mp pcl pic
# 

Some debugging revealed that the plugin loading is broken.
lib/gv/gvconfig.c references the Makefile's GVLIBDIR
build-time environment variable which is defined as
/usr/local/lib/graphviz/graphviz. (Note the double "graphviz".)
This directory doesn't exist, Actually the correct directory is
/usr/local/lib/graphviz (single "graphviz").

The root cause is an incomplete ${REINPLACE_CMD} in the ports' Makefile,
applied to lib/Makefile.in. While it is correct to amend libdir, we must
consequently rectify pkglibdir to avoid the double "graphviz". See the
patch below.

After application of the patch:

# dot -Twhatever
Renderer type: "whatever" not recognized. Use one of: canon cmap cmapx dia dot fig gd gd2 gif hpgl imap ismap jpeg jpg mif mp pcl pic plain plain-ext png ps ps2 svg svgz vrml vtx wbmp xdot
# 

While we're at it, ports/graphviz/files/patch-configure is an empty file
that should be removed.

Fix: rm ports/graphviz/files/patch-configure
How-To-Repeat: 
See above.