Updating linux helper script (new boost release).

docs/linux_build_scripts/prepare_pokerth.sh

@@ -3,7 +3,7 @@ PKTH_GSASL="libgsasl-1.4.4"
 PKTH_GSASL_FILE="$PKTH_GSASL.tar.gz"
 PKTH_QT="qt-everywhere-opensource-src-4.7.1"
 PKTH_QT_FILE="$PKTH_QT.tar.gz"
-PKTH_BOOST="boost_1_45_0"
+PKTH_BOOST="boost_1_46_0"
 PKTH_BOOST_FILE="$PKTH_BOOST.tar.bz2"
 
 if [ ! -e $PKTH_GSASL_FILE ]; then
@@ -42,7 +42,8 @@ if [ ! -d boost ]; then
 fi
 if [ ! -e boost/stage/lib/libboost_system.a ]; then
         cd boost
-        bjam link=static --build-dir=../boost_temp --toolset=gcc stage
+	./bootstrap.sh
+        ./bjam link=static --build-dir=../boost_temp --toolset=gcc stage
         cd ..
         rm -rf boost_temp
 fi