bool is a keyword in C23, so don't try to typedef it.

mach/proto/top/top.h

@@ -5,6 +5,8 @@
  */
 /* Tunable constants; may be overruled by machine descriptor table */
 
+#include <stdbool.h>
+
 #ifndef OP_SEPARATOR
 #define OP_SEPARATOR ','
 #endif
@@ -82,8 +84,6 @@ struct instr_descr {
 	struct templat templates[MAXOP];
 };
 
-typedef int bool;
-
 #define TRUE 	1
 #define FALSE	0
 

util/ego/share/types.h

@@ -8,6 +8,9 @@
 /* This file contains the definitions of the global data types.
  */
 
+#include <stdint.h>
+#include <stdbool.h>
+
 /* TEMPORARY: */
 #define LONGOFF
 
@@ -18,7 +21,6 @@
 
 typedef struct argbytes argb_t;
 typedef char byte;
-typedef byte bool;
 typedef long offset;
 typedef short obj_id;
 typedef short proc_id;

util/opt/types.h

@@ -5,8 +5,9 @@
 #ifndef TYPES_H_
 #define TYPES_H_
 
+#include <stdbool.h>
+
 typedef unsigned char byte;
-typedef char bool;
 typedef struct line line_t;
 typedef struct line *line_p;
 typedef struct sym sym_t;