Conflicting types during libpcap compilation

Question

I'm trying to compile libpcap with cross compilator arm-linux-gcc. When I run 'make' I get an error:

./pcap-linux.c:254:14: conflicting types for socklen_t /usr/arm-linux-gnueabi/include/unistd.h:275:21: note previous declaration of 'socklen_t'

I've also tried to compile it using common gcc but i have the same error. I work on ubuntu. How to resolve this problem

Sergio · Answer 1 · 2016-07-21T08:40:36.600

3

pcap-linux.c makes an alias in next way:

#ifndef HAVE_SOCKLEN_T
typedef int     socklen_t;
#endif

You should pass -DHAVE_SOCKLEN_T to compiler or put

#define HAVE_SOCKLEN_T

to some header (usually it is done automatically by configure script or similar, that generates config.h).

Seems like you skipped build configuration step, so be ready to see another weird build errors.

edited Jul 21 '16 at 08:40

answered Jul 21 '16 at 08:32

Sergio

thanks for your response. There is strange problem. When I define HAVE_SOCKLEN_T in the file or in makefile in DEFS I have still the same error – kmbm Jul 21 '16 at 08:59
What does `configure --help` tell you? – alk Jul 21 '16 at 09:05
unfortunatelly nothing – kmbm Jul 21 '16 at 09:09

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