patchwork: add linking to cgraph

E.g. patchwork.c uses agfstnode from lib/cgraph/node.c.

This removes the need to link to cgraph for downstream libraries that
do not explicitly use cgraph.

diff --git a/lib/patchwork/CMakeLists.txt b/lib/patchwork/CMakeLists.txt
index 0ef621f0e0a1553103b6512320945e42bb7417e9..0ee7d954ec2298912274b6415a85e6444ff82ef2 100644 (file)
--- a/lib/patchwork/CMakeLists.txt
+++ b/lib/patchwork/CMakeLists.txt
@@ -18,3 +18,7 @@ target_include_directories(patchwork PRIVATE
     ${GRAPHVIZ_LIB_DIR}/pack
     ${GRAPHVIZ_LIB_DIR}/pathplan
 )
+
+target_link_libraries(patchwork PRIVATE
+    cgraph
+)