Header refactoring: break out rb.h dependencies

include/jemalloc/internal/jemalloc_internal.h.in

@@ -180,10 +180,6 @@ static const bool have_percpu_arena =
 #include <mach/vm_map.h>
 #endif
 
-#ifndef __PGI
-#define RB_COMPACT
-#endif
-#include "jemalloc/internal/rb.h"
 #include "jemalloc/internal/qr.h"
 #include "jemalloc/internal/ql.h"
 

include/jemalloc/internal/prof_structs.h

@@ -1,6 +1,8 @@
 #ifndef JEMALLOC_INTERNAL_PROF_STRUCTS_H
 #define JEMALLOC_INTERNAL_PROF_STRUCTS_H
 
+#include "jemalloc/internal/rb.h"
+
 struct prof_bt_s {
 	/* Backtrace, stored as len program counters. */
 	void		**vec;

include/jemalloc/internal/rb.h

@@ -22,6 +22,10 @@
 #ifndef RB_H_
 #define RB_H_
 
+#ifndef __PGI
+#define RB_COMPACT
+#endif
+
 #ifdef RB_COMPACT
 /* Node structure. */
 #define rb_node(a_type)							\

test/unit/rb.c

@@ -1,5 +1,7 @@
 #include "test/jemalloc_test.h"
 
+#include "jemalloc/internal/rb.h"
+
 #define rbtn_black_height(a_type, a_field, a_rbt, r_height) do {	\
 	a_type *rbp_bh_t;						\
 	for (rbp_bh_t = (a_rbt)->rbt_root, (r_height) = 0; rbp_bh_t !=	\