Hello,

	to all users: the most up-to-date list of guile s/w is here:

		http://sph.mn/foreign/guile-software.html

	[ and at the end of the list, it also offers 'searching links'
	[ to notabug, savannah, (give-up on) github and ML

> Can you recommend any library for working with graphs (I did not find
> it in srfi and mailing list). Almost what I need to have in graphviz
> bindings, but there are no predicate functions and the like.

In addition to the answers from Maxime and Ricardo ... I searched
because I thought guile has(had) a graphviz binding somewhere, here is
what I found

	https://reposcope.com/man/en/3guile/gv

Then I checked on debian, it has 

	libgv-guile	2.42.2-7
	Guile bindings for graphviz

	[ which seems up-to-date because it depends on the
	[ debian guile-3.0-libs 3.0.8-2

I also found this

	https://github.com/roelj/graphviz-guile

	which is 'old', but as it is merely a guile module definition to
	make the above lib available in guile 'proper', it should work
	or work with very little effort ...

I didn't try, short on time, but this should work or should work with
little effort, maybe just updating the graphviz-guile module ...

David