doxy: honor CMake's path for Graphviz's dot

diff --git a/doxygen/Doxyfile.in b/doxygen/Doxyfile.in
index 6755e2a03cdb811ca5516b15c1f00da095dfd96b..d3da6a997a776eea240e924ac1ccf70e46e55d22 100644 (file)
--- a/doxygen/Doxyfile.in
+++ b/doxygen/Doxyfile.in
@@ -2240,7 +2240,7 @@ INTERACTIVE_SVG        = NO
 # found. If left blank, it is assumed the dot tool can be found in the path.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_PATH               =
+DOT_PATH               = @DOXYGEN_DOT_PATH@
 
 # The DOTFILE_DIRS tag can be used to specify one or more directories that
 # contain dot files that are included in the documentation (see the \dotfile