I was using 1.3.77 and pppd worked fine. (version 2.2.0e)
I upgraded to 1.3.83, and it doesn't work fine.
Followed the instructions, line by line, and got an error in
sys-linux.c, that it was missing MAX_ADDR_LEN. Found it in
<linux/netdevices.h> and added that include. Tons and tons of
undefined references to __constant_c_and_count_memset,
__constant_c_memset, and __memset_generic, and a single undefined
reference to __memcpy resulted.