Brian, I'm not sure my scanModem code is adequate on Fedora, but you likely need to install kernel-headers matching Linux version 3.17.7-300.fc21.i686+PAE in order to support compiling of the martian driver. But I just tried a compile under a Ubuntu kernel 3.13.0-39-generic, and there was a failure. We no longer have really code competent maintainers for these very old modem codes. You are best off seeking some alternate CONNECT modality. I'll further look into this tomorrow, but am not hopeful. John, What was the last kernel you were able to compile under? MarvS