Add note that Graphviz is not thread-safe.

diff --git a/doc/libguide/intro.tex b/doc/libguide/intro.tex
index bce7e25977910a7baed94cff8109c9bf46886bed..e9cda3d19d5484c17c15148af5c6fceae37bb35a 100644 (file)
--- a/doc/libguide/intro.tex
+++ b/doc/libguide/intro.tex
@@ -303,3 +303,4 @@ Section~\ref{sec:unconnect}
 discusses an auxiliary library for dealing with graphs containing
 multiple connected components.
 
+{\bf N.B. Using \gviz\ as a library is not thread-safe.}

diff --git a/doc/libguide/libguide.pdf b/doc/libguide/libguide.pdf
index 90dcc0ad95411afef660de0e1ae8a478e9e8ab13..7913ff9f9b3c2780884feb2e440e2235c811904d 100644 (file)
Binary files a/doc/libguide/libguide.pdf and b/doc/libguide/libguide.pdf differ