$PNG = "piped-demo.png";
# some magic to find the correct rrdtol executable
+$prefix="@prefix@";
+
if ( -x "@exec_prefix@/bin/rrdtool") {
RRDp::start "@exec_prefix@/bin/rrdtool";
-} elsif ( -x "../bin/rrdtool") {
- RRDp::start "../bin/rrdtool";
+} elsif ( -x "../../../bin/rrdtool") {
+ RRDp::start "../../../bin/rrdtool";
} else {
RRDp::start "../src/rrdtool";
}