You have this ↓ guy a lot to thank for.

00:45 -!- variable [root@freebsd/developer/variable] has joined #!/bin/mksh

• +b *!*root@*, +b $a:root, +b $r:root on one more channel
• certain checks to prevent:
00:47 < variable> wjcw: sh.h:308: error: conflicting types for 'getrusage'
01:19 < variable> oh
01:19 < variable> I needed to run Build.sh

sh.h

@@ -152,7 +152,7 @@
 #endif
 
 #ifdef EXTERN
-__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.529 2012/03/26 21:10:44 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.530 2012/03/27 21:23:52 tg Exp $");
 #endif
 #define MKSH_VERSION "R40 2012/03/26"
 
@@ -429,6 +429,11 @@ char *ucstrstr(char *, const char *);
 #define mkssert(e)	((void)0)
 #endif
 
+#if !defined(MKSH_BUILDMAKEFILE4BSD) && !defined(MKSH_BUILDSH)
+I'm sorry, Dave. I'm afraid I can't do that.
+#error Must run Build.sh to compile this.
+#endif
+
 /* use this ipv strchr(s, 0) but no side effects in s! */
 #define strnul(s)	((s) + strlen(s))