new file mode 100644
--- /dev/null
+++ b/runtime/spell/de/main.aap
@@ -0,0 +1,82 @@
+# Aap recipe for Dutch Vim spell files.
+
+# Use a freshly compiled Vim if it exists.
+@if os.path.exists('../../../src/vim'):
+    VIM = ../../../src/vim
+@else:
+    VIM = vim
+
+SPELLDIR = ..
+FILES    = de_DE.aff de_DE.dic
+ZIPFILE  = de_DE_comb.zip
+
+all: $(SPELLDIR)/de.latin1.spl $(SPELLDIR)/de.utf-8.spl ../README_de.txt
+
+$(SPELLDIR)/de.latin1.spl : $(VIM) $(FILES)
+        :sys env LANG=de_DE.ISO8859-1
+		$(VIM) -e -c "mkspell! $(SPELLDIR)/de de_DE" -c q
+
+$(SPELLDIR)/de.utf-8.spl : $(VIM) $(FILES)
+        :sys env LANG=de_DE.UTF-8
+		$(VIM) -e -c "mkspell! $(SPELLDIR)/de de_DE" -c q
+
+../README_de.txt: README_de_DE_comb.txt
+        :copy $source $target
+
+#
+# Fetching the files from OpenOffice.org.
+#
+OODIR = http://ftp.services.openoffice.org/pub/OpenOffice.org/contrib/dictionaries
+:attr {fetch = $(OODIR)/%file%} $(ZIPFILE)
+
+# The files don't depend on the .zip file so that we can delete it.
+# Only download the zip file if the targets don't exist.
+de_DE.aff de_DE.dic: {buildcheck=}
+        :assertpkg unzip patch
+        :fetch $(ZIPFILE)
+        :sys $(UNZIP) $(ZIPFILE)
+        :delete $(ZIPFILE)
+        :move de_DE_comb.aff de_DE.aff
+        :move de_DE_comb.dic de_DE.dic
+        @if not os.path.exists('de_DE.orig.aff'):
+                :copy de_DE.aff de_DE.orig.aff
+        @if not os.path.exists('de_DE.orig.dic'):
+                :copy de_DE.aff de_DE.orig.dic
+        :sys patch <de_DE.diff
+
+
+# Generate diff files, so that others can get the OpenOffice files and apply
+# the diffs to get the Vim versions.
+
+diff:
+        :assertpkg diff
+        :sys {force} diff -a -C 1 de_DE.orig.aff de_DE.aff >de_DE.diff
+        :sys {force} diff -a -C 1 de_DE.orig.dic de_DE.dic >>de_DE.diff
+
+
+# Check for updated OpenOffice spell files.  When there are changes the
+# ".new.aff" and ".new.dic" files are left behind for manual inspection.
+
+check:
+        :assertpkg unzip diff
+        :fetch $(ZIPFILE)
+        :mkdir tmp
+        :cd tmp
+        @try:
+            @import stat
+            :sys $(UNZIP) ../$(ZIPFILE)
+            :move de_DE_comb.aff de_DE.aff
+            :move de_DE_comb.dic de_DE.dic
+            :sys {force} diff ../de_DE.orig.aff de_DE.aff >d
+            @if os.stat('d')[stat.ST_SIZE] > 0:
+                :copy de_DE.aff ../de_DE.new.aff
+            :sys {force} diff ../de_DE.orig.dic de_DE.dic >d
+            @if os.stat('d')[stat.ST_SIZE] > 0:
+                :copy de_DE.dic ../de_DE.new.dic
+        @finally:
+            :cd ..
+            :delete {r}{f}{q} tmp
+            :delete $(ZIPFILE)
+
+
+# vim: set sts=4 sw=4 :