I'm trying to use TV (8.11.0-3) on my desktop which is running FC20 64-bit: 3.13.5-200.fc20.x86_64

When I run a hello-world program with TV, it displays only the assembler and not the source.
If I run the same code with gdb then it can access the source code.
I've tried explicitly adding the folder containing the source to the search path but that makes no difference.

I've used TV without problems on a second machine, also 64-bit and running FC 18. However, that machine has gcc
version 4.7.2 whereas my desktop has 4.8.2-7. Could that be the issue?

Many thanks for any suggestions,