Check for winsock2.h instead of __MINGW32__

Originally committed as revision 9988 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -695,6 +695,7 @@ HAVE_LIST="
     sys_soundcard_h
     termios_h
     threads
+    winsock2_h
 "
 
 CMDLINE_SELECT="
@@ -1534,6 +1535,7 @@ check_header termios.h
 check_header conio.h
 
 check_header arpa/inet.h
+check_header winsock2.h
 
 check_func inet_aton
 enabled zlib && check_lib zlib.h zlibVersion -lz || zlib="no"

libavformat/network.h

@@ -21,7 +21,7 @@
 #ifndef NETWORK_H
 #define NETWORK_H
 
-#ifdef __MINGW32__
+#ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
 #include <ws2tcpip.h>
 

libavformat/os_support.c

@@ -25,7 +25,7 @@
 #include <fcntl.h>
 
 #ifndef HAVE_SYS_POLL_H
-#if defined(__MINGW32__)
+#ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
 #else
 #include <sys/select.h>
@@ -70,7 +70,7 @@ int resolve_host(struct in_addr *sin_addr, const char *hostname)
 
 int ff_socket_nonblock(int socket, int enable)
 {
-#ifdef __MINGW32__
+#ifdef HAVE_WINSOCK2_H
    return ioctlsocket(socket, FIONBIO, &enable);
 #else
    if (enable)
@@ -92,7 +92,7 @@ int poll(struct pollfd *fds, nfds_t numfds, int timeout)
     int n;
     int rc;
 
-#ifdef __MINGW32__
+#ifdef HAVE_WINSOCK2_H
     if (numfds >= FD_SETSIZE) {
         errno = EINVAL;
         return -1;
@@ -107,7 +107,7 @@ int poll(struct pollfd *fds, nfds_t numfds, int timeout)
     for(i = 0; i < numfds; i++) {
         if (fds[i].fd < 0)
             continue;
-#ifndef __MINGW32__
+#ifndef HAVE_WINSOCK2_H
         if (fds[i].fd >= FD_SETSIZE) {
             errno = EINVAL;
             return -1;

libavformat/os_support.h

@@ -43,6 +43,9 @@ __declspec(dllimport) void __stdcall Sleep(unsigned long dwMilliseconds);
 #  define usleep(t)    Sleep((t) / 1000)
 #  include <fcntl.h>
 #  define lseek(f,p,w) _lseeki64((f), (p), (w))
+#endif
+
+#ifdef HAVE_WINSOCK2_H
 #  define HAVE_CLOSESOCKET 1
 #endif