Let's try this. It's BUGGERED.

src/cmd/pic/prevy.tab.h

@@ -0,0 +1,97 @@
+# define BOX 1
+# define LINE 2
+# define ARROW 3
+# define CIRCLE 4
+# define ELLIPSE 5
+# define ARC 6
+# define SPLINE 7
+# define BLOCK 8
+# define TEXT 9
+# define TROFF 10
+# define MOVE 11
+# define BLOCKEND 12
+# define PLACE 13
+# define PRINT 270
+# define RESET 271
+# define THRU 272
+# define UNTIL 273
+# define FOR 274
+# define IF 275
+# define COPY 276
+# define THENSTR 277
+# define ELSESTR 278
+# define DOSTR 279
+# define PLACENAME 280
+# define VARNAME 281
+# define SPRINTF 282
+# define DEFNAME 283
+# define ATTR 284
+# define TEXTATTR 285
+# define LEFT 286
+# define RIGHT 287
+# define UP 288
+# define DOWN 289
+# define FROM 290
+# define TO 291
+# define AT 292
+# define BY 293
+# define WITH 294
+# define HEAD 295
+# define CW 296
+# define CCW 297
+# define THEN 298
+# define HEIGHT 299
+# define WIDTH 300
+# define RADIUS 301
+# define DIAMETER 302
+# define LENGTH 303
+# define SIZE 304
+# define CORNER 305
+# define HERE 306
+# define LAST 307
+# define NTH 308
+# define SAME 309
+# define BETWEEN 310
+# define AND 311
+# define EAST 312
+# define WEST 313
+# define NORTH 314
+# define SOUTH 315
+# define NE 316
+# define NW 317
+# define SE 318
+# define SW 319
+# define START 320
+# define END 321
+# define DOTX 322
+# define DOTY 323
+# define DOTHT 324
+# define DOTWID 325
+# define DOTRAD 326
+# define NUMBER 327
+# define LOG 328
+# define EXP 329
+# define SIN 330
+# define COS 331
+# define ATAN2 332
+# define SQRT 333
+# define RAND 334
+# define MIN 335
+# define MAX 336
+# define INT 337
+# define DIR 338
+# define DOT 339
+# define DASH 340
+# define CHOP 341
+# define FILL 342
+# define ST 343
+# define OROR 344
+# define ANDAND 345
+# define GT 346
+# define LT 347
+# define LE 348
+# define GE 349
+# define EQ 350
+# define NEQ 351
+# define UMINUS 352
+# define NOT 353