diff --git a/debian/unpack.sh b/debian/unpack.sh
new file mode 100644
index 00000000..2017d3d7
--- /dev/null
+++ b/debian/unpack.sh
@@ -0,0 +1,21 @@
+set -e
+
+MAJOR_VERSION=`ls -1 *svn*bz2 | tail -1|perl -ne 'print "$1\n" if /(\d+)~svn/;' | sort -ru`
+SVN_REV=`ls -1 *svn*bz2 | tail -1|perl -ne 'print "$1\n" if /svn(\d+)/;' | sort -ru`
+echo "Unpack of llvm"
+tar jxf llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig.tar.bz2
+cd llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV/ || ( echo "Bad SVN_REV:\"$SVN_REV\"" && exit 1 )
+for f in ../llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig-clang.tar.bz2 ../llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig-clang-tools-extra.tar.bz2 ../llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig-compiler-rt.tar.bz2 ../llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig-lld.tar.bz2 ../llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig-lldb.tar.bz2 ../llvm-toolchain-snapshot_$MAJOR_VERSION~svn$SVN_REV.orig-polly.tar.bz2; do
+	if test -e $f; then
+		echo "unpack of $f"
+		tar jxf $f
+	fi
+ done
+ln -s clang_$MAJOR_VERSION~svn$SVN_REV clang
+ln -s clang-tools-extra_$MAJOR_VERSION~svn$SVN_REV clang-tools-extra
+ln -s compiler-rt_$MAJOR_VERSION~svn$SVN_REV compiler-rt
+ln -s polly_$MAJOR_VERSION~svn$SVN_REV polly
+ln -s lld_$MAJOR_VERSION~svn$SVN_REV lld
+ln -s lldb_$MAJOR_VERSION~svn$SVN_REV lldb
+cp -R ../snapshot/debian .
+QUILT_PATCHES=debian/patches/ quilt push -a --fuzz=0