error with pcap_findalldevs()

["Mustafa Abu Sedera" <tifa_80 () hotmail com>]

Hi all!

I had pcap 0.6.1 installed on my redhat 8. I wanted to use the 
pcap_findalldevs funcion so i installed 0.8.1 on top of it (i don't know how 
to uninstall a non rpm package, i am noob still).

when I use the function I get an error: undefined reference to 
pcap_findalldevs(). I checked the pcap.h file (in 2 locations /usr/include 
and /usr/local/include) and found the function defined in there.

Strange is that:
1- the compiler doesn't complain about the definition of pcap_if_t which i 
think wasn't available in 0.6.1

2- when i enter an invalid type argument(eg: int in place of char* of 
errBuf) the compiler displays: incorrect data type in argument of 
pcap_findalldevs().
And when I write 3 arguments it says: function takes 2 parameters.
This would mean that the compilers "knows" the function.

Any suggestions would be appreciated.

Thanks in advance.

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