changing the port on rosserial_embeddedlinux node results in segmentation fault?

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running the HelloRos example in rosserial_embeddedlinux package on Raspberry Pi, Raspbian.

if default port is used, compiles and runs OK

when adding port number to path like so: nh.initNode(192.168.1.101:114411)

results in immediate segmentation fault..

how can the port number be added to the initNode call?

Quoted from UPenn Publisher example:

NodeHandle.initNode() accepts arguments like:

/dev/ttyUSB1 uses the designated serial port for messages to rosserial_python 192.168.1.2 connects to rosserial_python at the specified IP address on the default port 11411 192.168.1.2:12345 connects to rosserial_python at the specified IP address on the specified port number