re macros conflict with macros within the iOS SDK

[MitchellFreeman]

Two macros (that I am aware of), LIST_INIT and LIST_FOREACH conflict with macros within sys/queue.h in the iOS SDK. re can't be built with these due to multiple definitions and they need to be altered in some way before they can build.

[sreimers]

Is sys/queue.h included by a system library or something you include in your project? Can you share a code/project example?

[sreimers]

We simply undef these macros before include re headers if needed, like here:

re/src/main/main.c

Lines 30 to 44 in 198fbd9

	#ifdef HAVE_KQUEUE
	#include <sys/types.h>
	#include <sys/event.h>
	#include <sys/time.h>
	#undef LIST_INIT
	#undef LIST_FOREACH
	#endif
	#include <re_types.h>
	#include <re_fmt.h>
	#include <re_mem.h>
	#include <re_mbuf.h>
	#include <re_list.h>
	#include <re_tmr.h>
	#include <re_main.h>
	#include "main.h"

[sreimers]

I have documented this a little better here: https://github.com/baresip/re/wiki/Development#conflicting-macro-definitions

I think it is better to solve this in the application itself, because it also makes you aware that there are conflicts. Let me know if this fixes your problems.