R=r
https://golang.org/cl/152085
#define getc aagetc
#define ungetc aaungetc
-#define BUFSIZ AABUFSIZ
+#undef BUFSIZ
typedef struct Sym Sym;
typedef struct Gen Gen;
#define getc aagetc
#define ungetc aaungetc
-#define BUFSIZ AABUFSIZ
+#undef BUFSIZ
typedef struct Sym Sym;
typedef struct Ref Ref;
#define getc aagetc
#define ungetc aaungetc
-#define BUFSIZ AABUFSIZ
+#undef BUFSIZ
typedef struct Sym Sym;
typedef struct Ref Ref;
#define getc ccgetc
#define ungetc ccungetc
-#define BUFSIZ GCBUFSIZ
+#undef BUFSIZ
typedef struct Node Node;
typedef struct Sym Sym;
#define getc gcgetc
#define ungetc gcungetc
-#define BUFSIZ GCBUFSIZ
+#undef BUFSIZ
enum
{