Corss Compile tcpdump for linux/mips

1. download libpcap (I use version 1.1.1 at the time of post) and tcpdump (v4.1.1 as of time of post)

2. unzip both directory under the same directory, such as download/libpcap-1.1.1 and download/tcpdump-4.1.1


Build libpcap:

3. cd libpcap-1.1.1 ;

4. vi configure; search for "linux version", and remove the entire section of "case" under "linux)" until "do we have the wireless extensions". This is so that ./configure does not try to detect linux (and fail). Our linux is fine.

5. CC=/YOUR-CROSS-COMPILER-PATH/mips-openwrt-linux-gcc ./configure --host=mips-linux  --with-pcap=linux
6.  make. after make is successful, you'll have a libpcap.a

Build tcpdump:

7. cd ../tcpdump-4.1.1

8 .vi configure; earch for "linux version", and remove the entire section of "case" under "linux*)" until ";; \n *)".

9. CC=/YOUR-CROSS-COMPILER-PATH/mips-openwrt-linux-gcc ./configure --host=mips-linux  --with-pcap=linux


10. vi Makefile; search for /usr/include and remove them; the Makefile by mistake include including files in the host system. Remove them.





11. make. you can strip the final tcpdump if you like. all done.