diff --git a/Makefile b/Makefile
index 40f6708..4d96fe8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 TARGET = ciadpi
 
-CPPFLAGS = -D_XOPEN_SOURCE=500
+#CPPFLAGS = -D_XOPEN_SOURCE=500
 CFLAGS += -I. -std=c99 -Wall -Wno-unused -O2
 WIN_LDFLAGS = -lws2_32 -lmswsock
 
diff --git a/conev.c b/conev.c
index 6387775..a3f1ce0 100644
--- a/conev.c
+++ b/conev.c
@@ -1,4 +1,3 @@
-
 #include "conev.h"
 
 #include <stdlib.h>
diff --git a/extend.c b/extend.c
index d5d6d59..ac90b02 100644
--- a/extend.c
+++ b/extend.c
@@ -1,4 +1,3 @@
-
 #include "extend.h"
 
 #ifdef _WIN32
diff --git a/extend.h b/extend.h
index 8a6ab8f..22d8ed8 100644
--- a/extend.h
+++ b/extend.h
@@ -3,7 +3,6 @@
 
 #include <stddef.h>
 
-#include "conev.h"
 #include "proxy.h"
 
 int connect_hook(struct poolhd *pool, struct eval *val, 
diff --git a/main.c b/main.c
index 19e0c2b..28a17a3 100644
--- a/main.c
+++ b/main.c
@@ -16,8 +16,9 @@
     #include <unistd.h>
     #include <netdb.h>
     #include <fcntl.h>
+    #include <netinet/in.h>
     #include <netinet/tcp.h>
-    #include <sys/mman.h>
+    #include <sys/socket.h>
 #else
     #include <ws2tcpip.h>
     #include "win_service.h"
@@ -441,7 +442,7 @@ int main(int argc, char **argv)
         return -1;
     }
     
-    while (!invalid && (rez = getopt_long_only(
+    while (!invalid && (rez = getopt_long(
              argc, argv, opt, options, 0)) != -1) {
         switch (rez) {
         
diff --git a/mpool.c b/mpool.c
index 9d4fd42..50fe43e 100644
--- a/mpool.c
+++ b/mpool.c
@@ -1,11 +1,9 @@
-
 #include "mpool.h"
 
 #include <stdlib.h>
 #include <string.h>
 
 
-
 static inline int scmp(const struct elem *p, const struct elem *q)
 {
     if (p->len != q ->len) {
diff --git a/packets.c b/packets.c
index ebe4d39..ecc84ab 100644
--- a/packets.c
+++ b/packets.c
@@ -1,5 +1,3 @@
-#define _GNU_SOURCE
-
 #include "packets.h"
 
 #include <ctype.h>
@@ -8,6 +6,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <string.h>
+#include <strings.h>
 
 #ifdef _WIN32
     #include <winsock2.h>
diff --git a/params.h b/params.h
index a8ff74b..d329108 100644
--- a/params.h
+++ b/params.h
@@ -10,6 +10,9 @@
     #include <ws2tcpip.h>
 #else
     #include <arpa/inet.h>
+    #include <netinet/in.h>
+    #include <unistd.h>
+    #include <sys/socket.h>
 #endif
 
 #if defined(__linux__) || defined(_WIN32)
diff --git a/proxy.c b/proxy.c
index c938857..88539e4 100644
--- a/proxy.c
+++ b/proxy.c
@@ -346,7 +346,7 @@ int create_conn(struct poolhd *pool,
         }
     }
     if (bind(sfd, (struct sockaddr *)&params.baddr, 
-            sizeof(params.baddr)) < 0) {
+            SA_SIZE(&params.baddr)) < 0) {
         uniperror("bind");  
         close(sfd);
         return -1;
@@ -376,7 +376,7 @@ int create_conn(struct poolhd *pool,
         close(sfd);
         return -1;
     }
-    int status = connect(sfd, &addr.sa, sizeof(addr));
+    int status = connect(sfd, &addr.sa, SA_SIZE(&addr));
     if (status == 0 && params.tfo) {
         LOG(LOG_S, "TFO supported!\n");
     }
@@ -432,7 +432,7 @@ int udp_associate(struct poolhd *pool,
         map_fix(&addr, 6);
     }
     if (bind(ufd, (struct sockaddr *)&params.baddr, 
-            sizeof(params.baddr)) < 0) {
+            SA_SIZE(&params.baddr)) < 0) {
         uniperror("bind");  
         close(ufd);
         return -1;
@@ -443,7 +443,7 @@ int udp_associate(struct poolhd *pool,
         return -1;
     }
     if (dst->in6.sin6_port != 0) {
-        if (connect(ufd, &addr.sa, sizeof(addr)) < 0) {
+        if (connect(ufd, &addr.sa, SA_SIZE(&addr)) < 0) {
             uniperror("connect");
             del_event(pool, pair);
             return -1;
@@ -465,7 +465,7 @@ int udp_associate(struct poolhd *pool,
         del_event(pool, pair);
         return -1;
     }
-    if (bind(cfd, &addr.sa, sizeof(addr)) < 0) {
+    if (bind(cfd, &addr.sa, SA_SIZE(&addr)) < 0) {
         uniperror("bind");
         del_event(pool, pair);
         close(cfd);
@@ -670,7 +670,7 @@ int on_udp_tunnel(struct eval *val, char *buffer, size_t bfsize)
                 if (!addr_equ(&addr, (struct sockaddr_ina *)&val->in6)) {
                     return 0;
                 }
-                if (connect(val->fd, &addr.sa, sizeof(addr)) < 0) {
+                if (connect(val->fd, &addr.sa, SA_SIZE(&addr)) < 0) {
                     uniperror("connect");
                     return -1;
                 }
@@ -691,7 +691,7 @@ int on_udp_tunnel(struct eval *val, char *buffer, size_t bfsize)
                 if (params.baddr.sin6_family != addr.sa.sa_family) {
                     return -1;
                 }
-                if (connect(val->pair->fd, &addr.sa, sizeof(addr)) < 0) {
+                if (connect(val->pair->fd, &addr.sa, SA_SIZE(&addr)) < 0) {
                     uniperror("connect");
                     return -1;
                 }
@@ -940,7 +940,7 @@ int listen_socket(struct sockaddr_ina *srv)
         close(srvfd);
         return -1;
     }
-    if (bind(srvfd, &srv->sa, sizeof(*srv)) < 0) {
+    if (bind(srvfd, &srv->sa, SA_SIZE(srv)) < 0) {
         uniperror("bind");  
         close(srvfd);
         return -1;
diff --git a/proxy.h b/proxy.h
index 43e5756..29eaee2 100644
--- a/proxy.h
+++ b/proxy.h
@@ -7,10 +7,15 @@
     #include <ws2tcpip.h>
 #else
     #include <arpa/inet.h>
+    #include <sys/socket.h>
 #endif
 
 #include "conev.h"
 
+#define SA_SIZE(s) \
+    (((struct sockaddr *)s)->sa_family == AF_INET6) ? \
+        sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in)
+
 struct sockaddr_ina {
     union {
         struct sockaddr sa;
diff --git a/win_service.c b/win_service.c
index 8645f45..9399974 100644
--- a/win_service.c
+++ b/win_service.c
@@ -1,4 +1,3 @@
-
 #include "win_service.h"
 
 #include <windows.h>
diff --git a/win_service.h b/win_service.h
index 65b797a..104c44c 100644
--- a/win_service.h
+++ b/win_service.h
@@ -1,7 +1 @@
-#ifndef WIN_SERVICE_H
-#define WIN_SERVICE_H
-
 int register_winsvc(int argc, char *argv[]);
-
-
-#endif