Clean up vpp build bootstrap step

Net of rewriting vppapigen in python-ply, there's no need to compile
vppinfra.

Install a copy of vppapigen in .../build-root/tools/bin, so
the sample plugin build will work. Rationalize suffix-rules.mk.

Add clang, clang++ links to .../build-root/ccache-bin.

Change-Id: Ib4017848b7767b6054238ea544ee5319667c3659
Signed-off-by: Dave Barach <dave@barachs.net>

build-root/scripts/set-rpath

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+# Copyright (c) 2015 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if [ -z $1 ]; then
+	echo "Please specify path"
+	exit 1
+fi
+
+which chrpath &> /dev/null
+
+if [ $? -ne 0 ] ; then
+	echo "Please install chrpath tool"
+	exit 1
+fi
+
+cd $1
+
+libs=$(find * -type f -name \*.so\*)
+execs=$(find * -type f -path bin/\* )
+
+echo "Setting RPATH to $2 ..."
+
+for i in $libs $execs; do
+	# in case non-ELF file is found
+	chrpath $i 2> /dev/null > /dev/null
+	if [ $? -eq 0 ] ; then
+		echo $i
+		chrpath -r $2
+	fi
+done
+