diff --git a/scripts/rtems/mkspec.in b/scripts/rtems/mkspec.in
new file mode 100644
index 0000000000..3e9487b9d1
--- /dev/null
+++ b/scripts/rtems/mkspec.in
@@ -0,0 +1,61 @@
+#!/bin/sh 
+#
+
+RTEMS_DIR=`dirname $0`/@top_srcdir@
+RTEMS_VERSION=@RTEMS_VERSION@
+
+CFG=setup.cache
+dst=@RPM_SPECSdir@
+exe_ext=@EXEEXT@
+
+usage()
+{
+  echo "$0 [options] <target_alias> <bsp>"
+  echo "  options:"
+  echo "    -cfg <setup.cache>"
+  echo "    -o <rpm-spec-dir>"
+  exit 1 ;
+}
+
+while test $# -ge 3; do
+case $1 in
+-cfg) 
+  shift
+  CFG=$1
+  shift
+  ;;
+-o)
+  shift
+  dst=$1
+  shift
+  ;;
+-*)
+  echo "invalid option $1";
+  usage
+  ;;
+esac
+done
+
+if test ! $# -eq 2;
+then
+  echo "Invalid number of arguments"
+  usage
+fi
+
+# target to build for
+target_alias=$1
+bsp=$2
+
+. ./$CFG
+
+specfile=${dst}/$target_alias-$bsp-${rtems_version}.spec
+
+sed -e "s%@Release\@%${rtems_rpm_release}%g" \
+    -e "s%@bsp\@%${bsp}%g" \
+    -e "s%@rtems_version\@%${rtems_version}%g" \
+    -e "s%@target_alias\@%${target_alias}%g" \
+    -e "s%@exe_ext\@%${exe_ext}%g" \
+< ${RTEMS_DIR}/rtems/rtems.spec.in \
+> ${specfile}
+
+echo Generated ${specfile}