Adding portaudio script to build portaudio and portaudiocpp

tools/portaudio.sh

+#!/bin/sh
+PORTAUDIO_SOURCE=http://portaudio.com/archives/pa_snapshot_v19.tar.gz
+PORTAUDIO_FILE=$(basename $PORTAUDIO_SOURCE)
+PORTAUDIO_DIR=portaudio
+PORTAUDIO_CONFIGURE_ARG=
+
+if [ ! -f $PORTAUDIO_FILE ]; then
+ wget $PORTAUDIO_SOURCE
+fi
+
+if [ ! -d $PORTAUDIO_DIR ]; then
+ tar xzvf $PORTAUDIO_FILE
+fi
+
+if [ ! -f $PORTAUDIO_DIR/Makefile ]; then
+  cd $PORTAUDIO_DIR
+  ./configure --enable-cxx $PORTAUDIO_CONFIGURE_ARG
+
+  make
+  
+  echo "To install portaudio (as root): " 
+  echo "su -c \"cd $PORTAUDIO_DIR && make install\""
+  echo ""
+
+  
+fi