engines/afalg: make it compile with backward compatibility headers.

 */

/* Required for vmsplice */

#ifndef _GNU_SOURCE

# define _GNU_SOURCE

#endif

#include <stdio.h>

#include <string.h>

#include <unistd.h>

#include <openssl/async.h>

#include <openssl/err.h>

#include <sys/socket.h>

#include <linux/version.h>

#define K_MAJ   4

#define K_MIN1  1

#define K_MIN2  0

#if LINUX_VERSION_CODE <= KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)

#if LINUX_VERSION_CODE <= KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2) || \

    !defined(AF_ALG)

# warning "AFALG ENGINE requires Kernel Headers >= 4.1.0"

# warning "Skipping Compilation of AFALG engine"

void engine_load_afalg_int(void)

#else

# include <linux/if_alg.h>

# include <sys/socket.h>

# include <fcntl.h>

# include <sys/utsname.h>