Index: Makefile
===================================================================
--- Makefile	(revision 37036)
+++ Makefile	(revision 37037)
@@ -3,7 +3,7 @@
 
 all: keys.html user/05_ui/04_common/keytree.svg user/05_ui/04_common/keytree.txt
 	ROOT="" ./Autostyle.sh *.html
-	./datasheet.sh
+	LIBRND_LIBDIR="$(LIBRND_LIBDIR)" ./datasheet.sh
 
 include ../Makefile.conf
 include $(LIBRND_MAK)
Index: datasheet.sh
===================================================================
--- datasheet.sh	(revision 37036)
+++ datasheet.sh	(revision 37037)
@@ -2,7 +2,11 @@
 
 ROOT=..
 
-LIBRND_LIBDIR=`cd developer/packaging && make -f librnd_root.mk libdir`
+if test -z "$LIBRND_LIBDIR"
+then
+	# when not run from the Makefile
+	LIBRND_LIBDIR=`cd developer/packaging && make -f librnd_root.mk libdir`
+fi
 
 proot=$ROOT/src_plugins
 . $LIBRND_LIBDIR/devhelpers/awk_on_formats.sh