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diff --git a/games/xu4/repackage.sh b/games/xu4/repackage.sh
new file mode 100644
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+++ b/games/xu4/repackage.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+
+# Repackage the official UltimaIV.zip from http://www.ultimaforever.com/
+# so that its zip file structure is the more-or-less the same as the dragon
+# release listed in the .info file. Also the official release includes the
+# PDF docs, so we pack them into ultima4_scanned_docs.zip like the build
+# script expects.
+
+# The resulting package will be missing Keyboard.txt. Since the contents
+# of Keyboard.txt are in the man page, I don't see it as a problem. The
+# package will also have an extra copy of the map (Map.jpg), higher res
+# than Map.bmp, but scanned from a creased map.
+
+SRCZIP="$1"
+if [ -z "$SRCZIP" -o ! -e "$SRCZIP" ]; then
+	echo "Usage: $0 /full/path/to/UltimaIV.zip"
+fi
+
+TMP=${TMP:-/tmp/SBo}
+WORK=$TMP/u4_repackage
+
+set -e
+
+OUTPUT="$( dirname $SRCZIP )"
+
+rm -rf $WORK
+mkdir -p $WORK
+cd $WORK
+unzip "$SRCZIP"
+
+# The manuals & map. This map is a jpeg, higher quality than the
+# bmp version, except the jpeg was scanned from a map with a big
+# crease in the middle. The dragon release lacks the jpeg map,
+# so the SlackBuild script will be smart enough to handle the
+# case where it's missing.
+mkdir ultima4_scanned_docs
+mv ultima4/EXTRAS/*.pdf ultima4_scanned_docs
+zip -r "$OUTPUT/ultima4_scanned_docs.zip" ultima4_scanned_docs
+mv "ultima4/EXTRAS/UltimaIV_Cloth Map.jpg" ultima4/Map.jpg
+rm -rf ultima4_scanned_docs ultima4/EXTRAS
+
+# dragon release has no containing directory inside the zipfile, so work
+# from here.
+cd ultima4
+
+# Rename some files:
+
+# The low-res (but not creased) map.
+mv MAP.BMP Map.bmp
+
+# there is no KEYBOARD.TXT. Use the word doc or the man page.
+# there is no README.TXT. It doesn't apply to xu4 anyway.
+mv HINTS.TXT Hints.txt
+mv WISDOM.TXT Wisdom.txt
+mv HISTORY.TXT History.txt
+
+mv KEYBOARD.DOC "Keyboard Reference.doc"
+# Readme.doc is different but has the same name. We don't need it anyway.
+mv HINTS.DOC Hints.doc
+mv THEBOOKO.DOC "The Book of Mystic Wisdom.doc"
+mv THEHISTO.DOC "The History of Britannia.doc"
+
+zip -r "$OUTPUT/ultima4.zip" .
+
+if [ "$2" != "--keep" ]; then
+	cd $TMP
+	rm -rf $WORK
+fi