I tried gps-sdr-sim for NI USRP-2920. At the first, I cloned gps-sdr-sim in github. The next, I typed 'gcc gpssim.c -lm -03 -o gps-sdr-sim' in terminal. As a result, gps-sdr-sim was created in gps-sdr-sim directory. At the last, I typed 'gps-sdr-sim -e brdc3540.14n -g triumphv3.txt'. But, it is displayed 'command in not found' in terminal.
I can't understand this reason. Could you tell me any advices? Thank you.