#ifndef USED_FOR_TARGET
+struct bitmap_head_def;
+typedef struct bitmap_head_def *bitmap;
struct rtx_def;
typedef struct rtx_def *rtx;
struct rtvec_def;
typedef struct rtvec_def *rtvec;
union tree_node;
typedef union tree_node *tree;
+union section;
+typedef union section section;
/* Provide forward struct declaration so that we don't have to include
all of cpplib.h whenever a random prototype includes a pointer.