BUILD: ebtree: don't redefine types u32/s32 in scope-aware trees
Clang emits a warning about these types being redefined in eb32sctree
while they are already defined in eb32tree. Let's simply not redefine
them if eb32tree was already included.
diff --git a/ebtree/eb32sctree.h b/ebtree/eb32sctree.h
index be469ba..9d0c997 100644
--- a/ebtree/eb32sctree.h
+++ b/ebtree/eb32sctree.h
@@ -28,8 +28,10 @@
#define eb32sc_entry(ptr, type, member) container_of(ptr, type, member)
/* These types may sometimes already be defined */
+#ifndef _EB32TREE_H
typedef unsigned int u32;
typedef signed int s32;
+#endif
/* This structure carries a node, a leaf, a scope, and a key. It must start
* with the eb_node so that it can be cast into an eb_node. We could also