+# Populate a directory with links to all busybox applets
+
+LINKSDIR="${bindir}/runtest-tempdir-links"
+rm -rf "$LINKSDIR" 2>/dev/null
+mkdir "$LINKSDIR"
+for i in $(sed 's@/[a-z0-9/\[]*/@@' $bindir/busybox.links 2>/dev/null)
+do
+ ln -s $bindir/busybox "$LINKSDIR"/$i
+done
+
+# Set up option flags so tests can be selective.
+
+configfile=${bindir:-../../}/.config
+export OPTIONFLAGS=:$(echo $(sed -nr 's/^CONFIG_(.*)=.*/\1/p' $configfile) | sed 's/ /:/g')
+