cc1: warnings being treated as errors nm-setting-bond.c: In function 'verify': nm-setting-bond.c:408: error: format not a string literal and no format arguments At top level: cc1: error: unrecognized command line option "-Wno-unused-but-set-variable" make[4]: *** [libnm_util_la-nm-setting-bond.lo] Error 1 make[4]: Leaving directory `/Vica/Desktop/NetworkManager-0.9.4.0/libnm-util' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/Vica/Desktop/NetworkManager-0.9.4.0/libnm-util' make[2]: *** [all] Error 2 make[2]: Leaving directory `/Vica/Desktop/NetworkManager-0.9.4.0/libnm-util' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/Vica/Desktop/NetworkManager-0.9.4.0' make: *** [all] Error 2 Vica@bt:~/Desktop/NetworkManager-0.9.4.0#