cyr_qsort_r.h
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cyr_qsort_r.h
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	/* cyr_qsort_r.h -- Cyrus compatibility header for qsort_r
	*
	* Always use the QSORT_R_COMPAR_ARGS macro to declare the
	* comparison function, e.g.
	*
	* int mysort QSORT_R_COMPAR_ARGS(const void *pa,
	* const void *pb,
	* void *arg)
	* {
	* ... your code here ...
	* }
	*
	*/
	#ifndef INCLUDED_CYR_QSORT_R_H
	#define INCLUDED_CYR_QSORT_R_H

	#include "config.h"

	#include <stdlib.h>

	#if defined(_GNU_SOURCE) && defined (__GLIBC__) && \
	((__GLIBC__ > 2) \|\| ((__GLIBC__ == 2) && (__GLIBC_MINOR__ >=0)))
	#define HAVE_GLIBC_QSORT_R
	#endif

	#if defined(__NEWLIB__) && \
	((__NEWLIB__ > 2) \|\| ((__NEWLIB__ == 2) && (__NEWLIB_MINOR__ >= 2)))
	#if defined(_GNU_SOURCE)
	#define HAVE_GLIBC_QSORT_R
	#else
	#define HAVE_BSD_QSORT_R
	#endif
	#endif

	#if !defined(HAVE_GLIBC_QSORT_R) && \
	(defined(__FreeBSD__) \|\| defined(__DragonFly__) \|\| defined(__APPLE__))
	#define HAVE_BSD_QSORT_R
	#endif

	#ifdef HAVE_BSD_QSORT_R
	#define QSORT_R_COMPAR_ARGS(a,b,c) (c,a,b)
	#define cyr_qsort_r(base, nmemb, size, compar, thunk) qsort_r(base, nmemb, size, thunk, compar)
	#else
	#define QSORT_R_COMPAR_ARGS(a,b,c) (a,b,c)
	# if defined(HAVE_GLIBC_QSORT_R)
	#define cyr_qsort_r(base, nmemb, size, compar, thunk) qsort_r(base, nmemb, size, compar, thunk)
	# elif defined(__GNUC__)
	extern void cyr_qsort_r(void *base, size_t nmemb, size_t size,
	int (compar)(const void , const void , void ),
	void *thunk);
	# else
	# error No qsort_r support
	# endif
	#endif

	#endif /* INCLUDED_CYR_QSORT_R_H */