oksh-noxz [fork] Portable OpenBSD ksh, based on the Public Domain Korn Shell (pdksh).
	git clone https://noxz.tech/git/oksh-noxz.git
	oksh-noxz

commit: d54b0d119607477eed06bc9b00b3a8a1eefba382
parent: a8c51c0cfc568dae4586513c77487004c7a420db
author: Brian Callahan <bcallah@openbsd.org>
date:   Sat, 31 Oct 2020 20:40:56 -0400

Add an OKSH_VERSION default variable with the current oksh version.

diff --git a/main.c b/main.c
@@ -82,6 +82,7 @@ static const char initsubs[] = "${PS2=> } ${PS3=#? } ${PS4=+ }";
 
 static const char *initcoms [] = {
 	"typeset", "-r", "KSH_VERSION", NULL,
+	"typeset", "-r", "OKSH_VERSION", NULL,
 	"typeset", "-x", "SHELL", "PATH", "HOME", "PWD", "OLDPWD", NULL,
 	"typeset", "-ir", "PPID", NULL,
 	"typeset", "-i", "OPTIND=1", NULL,
@@ -300,6 +301,7 @@ main(int argc, char *argv[])
 	setint(global("PPID"), (int64_t) ppid);
 	/* setstr can't fail here */
 	setstr(global(version_param), ksh_version, KSH_RETURN_ERROR);
+	setstr(global("OKSH_VERSION"), "oksh 6.8", KSH_RETURN_ERROR);
 
 	/* execute initialization statements */
 	for (wp = (char**) initcoms; *wp != NULL; wp++) {