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: 4ff209138921b71c799fdc8b445f8df60cb951d9
parent: 749b46f920852202c7a5fedd8f1ddfd7f3cea44a
author: Brian Callahan <bcallah@openbsd.org>
date:   Thu, 11 Jan 2018 23:16:14 -0500

Partially revert FreeBSD fix.

diff --git a/configure b/configure
@@ -273,9 +273,6 @@ echo "$os"
 
 if [ "x$os" = "xLinux" ] ; then
   cflags="$cflags -D_GNU_SOURCE"
-elif [ "x$os" = "xFreeBSD" ] ; then
-  prefix="\\${DESTDIR}$prefix"
-  mandir="$prefix/man"
 elif [ "x$os" = "xNetBSD" ] ; then
   tflags="-D_OPENBSD_SOURCE"
   cflags="$cflags $tflags"