-If VPP is not installed, but rather built in a separate directory, you can use the VPP_DIR 'configure' argument.
-```bash
-# 1. Set environment variables for source
-cd vpp/extras/vcl-ldpreload
-source ./env.sh
-
-# 2. Change to VPP source directory and build
-- Change director and modify uri.am to enable socket_test program
-
-cd $VPP_DIR
-perl -pi -e 's/noinst_PROGRAMS/bin_PROGRAMS/g' $VPP_DIR/src/uri.am
-
-- Build VPP release
-
-make install-dep wipe-release bootstrap dpdk-install-dev build-release
-
-# 2. Build LD_PRELOAD library against VPP build above
-## This does not install the LD_PRELOAD library in your system.
-## Instead it will be referenced from the build directory set in VCL_LDPRELOAD_LIB
-
-cd $LDP_DIR/vcl-ldpreload/src
-autoreconf -i -f
-./configure VPP_DIR=$VPP_DIR
-make
-```bash
-
-
-# 3. Running the demo