diff --git a/scripts/to-spec.sh b/scripts/to-spec.sh
new file mode 100644
index 00000000..ca343a1f
--- /dev/null
+++ b/scripts/to-spec.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+KLR_SPEC_FILE=$1
+repo_path=.
+tmpd=$(mktemp -d /tmp/spec.XXX)
+
+sed -i '/PK XXXX/,/#END/{//!d}' ${KLR_SPEC_FILE}
+sed -i '/patchXXXX/,/End XXXX/{//!d}' ${KLR_SPEC_FILE}
+
+for patch in ${repo_path}/[01234]*.patch
+do
+    P=${patch##*/}
+    N=$(echo ${P} | cut -c 1-4)
+    echo "Patch${N}: ${P}"  >> ${tmpd}/PatchXXXX
+    echo "%patch${N} -p1" >> ${tmpd}/patchYYYY
+done
+
+sed -i "/PK XXXX/r ${tmpd}/PatchXXXX"   ${KLR_SPEC_FILE}
+sed -i "/patchXXXX/r ${tmpd}/patchYYYY" ${KLR_SPEC_FILE}
+
+rm -rf ${tmpd}