Package: libc6-dev Version: 2.1.1-9 In /usr/include/netax25/ax25.h, there is a missing definition #define AX25_PIDINCL 8 which is included in <linux/ax25.h> (tested on kernels 2.2.7, 2.2.9, 2.2.10). amongst the others. I don't know if it is obsolete, but package ax25-utils-2.1.42a needs it to compile (file rose/rsdwnlnk.c, line 168) -- Konstantinos Margaritis