laffer1 agreed they will need -DMKSH_MIDNIGHTBSD01ASH_COMPAT in the

short term, but only for /bin/sh – thus recommend to also define
-DMKSH_BINSHREDUCED and make it dependent on FPOSIX

sh.h

@@ -122,7 +122,7 @@
 #define __SCCSID(x)	__IDSTRING(sccsid,x)
 
 #ifdef EXTERN
-__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.299 2009/05/16 19:34:07 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.300 2009/05/16 21:00:52 tg Exp $");
 #endif
 #define MKSH_VERSION "R38 2009/05/16"
 
@@ -333,12 +333,6 @@ typedef uint32_t mksh_uari_t;
 #define PATH_MAX	1024	/* pathname size */
 #endif
 
-#ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT
-#define initvsn__add_1	" MidnightBSD-0.1-ash-compat"
-#else
-#define initvsn__add_1	""
-#endif
-
 EXTERN const char *kshname;	/* $0 */
 EXTERN pid_t kshpid;		/* $$, shell pid */
 EXTERN pid_t procpid;		/* pid of executing process */
@@ -347,8 +341,7 @@ EXTERN uid_t ksheuid;		/* effective uid of shell */
 EXTERN int exstat;		/* exit status */
 EXTERN int subst_exstat;	/* exit status of last $(..)/`..` */
 EXTERN const char *safe_prompt; /* safe prompt if PS1 substitution fails */
-EXTERN const char initvsn[] I__("KSH_VERSION=@(#)MIRBSD KSH "
-    MKSH_VERSION initvsn__add_1);
+EXTERN const char initvsn[] I__("KSH_VERSION=@(#)MIRBSD KSH " MKSH_VERSION);
 #define KSH_VERSION	(initvsn + /* "KSH_VERSION=@(#)" */ 16)
 
 /*