+# Check that we have all boot packages.
+for dir in `grep "^[^# ][^ ]* *[^ ][^ ]* *[^ ][^ ]*$" packages | sed "s/ .*//"`
+do
+ if test ! -d $dir
+ then
+ echo "Looks like you're missing $dir." >&2
+ echo "Maybe you haven't done './darcs-all get'?" >&2
+ exit 1
+ fi
+done
+
+# autoreconf everything that needs it.
+for dir in . libraries/*
+do
+ if test -f $dir/configure.ac
+ then
+ echo "Booting $dir"
+ ( cd $dir && autoreconf )
+ fi
+done