Graphviz seems doesn't support png and map
<p>Hi I must convert a graph (a .dot)  to a map and to a png because I must generate dependencies graph with doxygen using graphviz.   But I have a error:</p>

<pre><code> error: problems opening map file
</code></pre>

<p>If I do dot -v I have</p>

<pre><code>dot - graphviz version 2.38.0 (20140413.2041)
libdir = "/usr/local/lib/graphviz"
Activated plugin library: libgvplugin_dot_layout.so.6
Using layout: dot:dot_layout
Activated plugin library: libgvplugin_core.so.6
Using render: dot:core
Using device: dot:dot:core
The plugin configuration file:
/usr/local/lib/graphviz/config6
was successfully loaded.
render  :  dot fig map pic pov ps svg tk vml xdot
layout  :  circo dot fdp neato nop nop1 nop2 osage patchwork sfdp
twopi
textlayout  : 
device  :  canon cmap cmapx cmapx_np dot eps fig gv imap imap_np ismap                    
pic plain plain-ext pov ps ps2 svg svgz tk vml vmlz xdot xdot1.2 
loadimage   :  (lib) eps gif jpe jpeg jpg png ps svg
</code></pre>

<p>There isn't map and png for render</p>

<p>Moreover if I do   dot -Tpng     </p>

<pre><code>Format: "png" not recognized. Use one of: canon cmap cmapx cmapx_np   
dot eps fig gv imap imap_np ismap pic plain plain-ext pov ps ps2 svg 
tk vml vmlz xdot xdot1.2 xdot1.4
</code></pre>

<p>It seem that I have not the library for png and map.
How can I fix the problem?
(I do not remember how at the time I installed grapghviz)
(I'm working on Linux SO)</p>