setup.sh: use locate instead of find

setup.sh

@@ -19,12 +19,14 @@ fi
 echo "TAPASCO_HOME=$TAPASCO_HOME"
 export PATH=$TAPASCO_HOME/bin:$PATH
 export MANPATH=$MANPATH:$TAPASCO_HOME/man
-if uname -a | grep -i ubuntu > /dev/null 2>&1; then
-	if find /usr/lib -name libmpfr.so > /dev/null 2>&1; then
-		export LD_PRELOAD=`find /usr/lib -name libmpfr.so 2>/dev/null`
+#if uname -a | grep -i ubuntu > /dev/null 2>&1; then
+	LIB=`locate -l 1 libmpfr`
+	if [[ $? -eq 0 ]]; then
+		export LD_PRELOAD=$LIB
+		echo "LD_PRELOAD=$LIB"
 	else
 		echo "WARNING: awk in Ubuntu Linux is incompatible with Vivado's old libmpfr.so" >&2
 		echo "This can be fixed by pre-loading a new libmpfr.so, but none was found in /usr/lib." >&2
 		echo "If you run into problems (awk: symbols not found), please install libmpfr."
 	fi
-fi
+#fi