stray ‘\’ in program

problem
compiling error:

mmi_gfx_macro.h:21: parse error before `{‘
mmi_gfx_macro.h:21: stray ‘\’ in program
mmi_gfx_macro.h:22: stray ‘\’ in program

root cause
Possibly \ at “end" of a CRLF terminated line is not seen as
line-continued?
solution:
%dos2unix <your_c_file>

tcpdump network packets

sudo tcpdump -vvv -XX -s 2000 -i eth0 tcp port 80 -l > dat

-s 2000: snarf data size = 2000 bytes
-i eth0: interface = eth0