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Martin Nordholts authored
Add gegl_dot_node_to_png() which is a debug function supposed to be called directly from a debugger. E.g. in gdb it is used like this: p gegl_dot_node_to_png (node, "/tmp/foo.png") where 'node' is a node of interest. That will show the graphviz graph of 'node' and its dependencies. svn path=/trunk/; revision=3051
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