patchwork mkTreeNode: use cgraph wrapper for allocation

The lib/cgraph/alloc.h wrappers are similar to the older lib/common/memory.h
wrappers except (1) they are header-only and (2) they live in a directory
(cgraph) that is at the root of the dependency tree. The long term plan is to
replace all use of lib/common/memory.h with lib/cgraph/alloc.h.

diff --git a/lib/patchwork/patchwork.c b/lib/patchwork/patchwork.c
index 48f93376d7cdb4e0fe2f2cdae2206fa220827cee..15b4acf434d02d64b598ea6945ae9c125fbc72d7 100644 (file)
--- a/lib/patchwork/patchwork.c
+++ b/lib/patchwork/patchwork.c
@@ -8,6 +8,7 @@
  * Contributors: Details at https://graphviz.org
  *************************************************************************/
 
+#include <cgraph/alloc.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <patchwork/patchwork.h>
@@ -68,7 +69,7 @@ static double getArea (void* obj, attrsym_t* ap)
  */
 static treenode_t* mkTreeNode (Agnode_t* n, attrsym_t* ap)
 {
-    treenode_t *p = NEW(treenode_t);
+    treenode_t *p = gv_alloc(sizeof(treenode_t));
 
     p->area = getArea (n, ap);
     p->kind = AGNODE;