README.xbuild update

@@ -21,11 +21,16 @@
 pfexec tar xvzf armtc.tar.gz -C /
 find /opt/armtc
 
 Fun way:
 
-Clone this repository again and do a normal i386 on i386 build.
+Using a normal i386 on i386 build:
+cd usr/src
+dmake setup
+cd cmd/sgs
+dmake install
+
 mkdir -p /opt/armtc/lib/amd64 /opt/armtc/usr/bin/amd64
 cd /opt/armtc/lib/
 ln -s amd64 64
 cd ../usr/bin
 ln -s amd64 64