sinc with TeXLive revision 41027 (trunk).

source/README

-$Id: README 40046 2016-03-16 21:35:53Z karl $
+$Id: README 41021 2016-05-10 22:48:54Z karl $
 Public domain.  Originally written 2005 by Karl Berry.
 
 For a high-level overview of building TeX Live, see
@@ -34,12 +34,16 @@ amd64-netbsd:
   NetBSD/amd64 6.1.3
   TL_MAKE=gmake LDFLAGS='-L/usr/X11R7/lib -Wl,-rpath,/usr/X11R7/lib' ./Build
   
+i386-openbsd, amd64-openbsd:
+  e.g., see CONFIGURE_ARGS in the Makefile in
+  http://cvsweb.openbsd.org/cgi-bin/cvsweb/ports/print/texlive/base/
+
 i386-solaris, x86_64-solaris: Solaris 10.  See doc/README.solaris.
 
 i386-cygwin, x86_64-cygwin: gcc-4.8.2, cygwin-1.7.29.
   ./Build (with --enable-xindy for i386).
 
-powerpc-linux (Debian Squeeze)
+powerpc-linux (Debian Squeeze):
   Linux homer 2.6.32-5-powerpc64 #1 SMP Tue Mar 8 02:01:42 UTC 2011
   ppc64 Debian GNU/Linux 6.0
   (only the kernel is 64bit, the entire userland is 32bit)