diff --git a/usr.bin/top/top.c b/usr.bin/top/top.c
--- a/usr.bin/top/top.c
+++ b/usr.bin/top/top.c
@@ -42,6 +42,17 @@
 /* Size of the stdio buffer given to stdout */
 #define Buffersize	2048
 
+#ifdef TOP_SHOW_ARGS
+#define	SHOW_ARGS	true
+#else
+#define	SHOW_ARGS	false
+#endif
+#ifdef TOP_PCPU_STATS
+#define	PCPU_STATS	true
+#else
+#define	PCPU_STATS	false
+#endif
+
 char copyright[] =
     "Copyright (c) 1984 through 1996, William LeFebvre";
 
@@ -51,8 +62,8 @@
 static char stdoutbuf[Buffersize];
 
 static int fmt_flags = 0;
-int show_args = false;
-int pcpu_stats = false;
+int show_args = SHOW_ARGS;
+int pcpu_stats = PCPU_STATS;
 
 /* signal handling routines */
 static sigret_t leave(int);