mingw/mingw-packages/mingw-w64-vlc/0021-fix-inet_pton-search.patch

diff --git a/configure.ac b/configure.ac
index bca8081..30f0414 100644
--- a/configure.ac
+++ b/configure.ac
@@ -652,15 +652,22 @@  AC_CHECK_TYPES([struct pollfd],,,
 dnl Checks for socket stuff
 VLC_SAVE_FLAGS
 SOCKET_LIBS=""
-AC_SEARCH_LIBS(connect, [socket], [
+AC_SEARCH_LIBS(connect, [socket ws2_32], [
   AS_IF([test "$ac_cv_search_connect" != "none required"], [
     SOCKET_LIBS="$ac_cv_search_connect"
   ])
-], [
-  AS_IF([test "${SYS}" = "mingw32"], [
-    SOCKET_LIBS="-lws2_32"
-  ])
-])
+],
+dnl on 32-bit Windows, API functions are stdcall, so use the prototype in the API header
+   [ AC_MSG_CHECKING(for connect in 32-bit Windows) ]
+   [ SAVELIBS=${LIBS} ]
+   [ LIBS="${LIBS} -lws2_32" ]
+   [ AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <winsock2.h>],[return connect(0,0,0);])],
+     [ SOCKET_LIBS="-lws2_32" ]
+     [ AC_MSG_RESULT(yes) ],
+     [ AC_MSG_RESULT(no) ]
+   )]
+   [ LIBS=${SAVELIBS} ]
+)
 
 AC_SEARCH_LIBS([inet_pton], [nsl], [
  AS_IF([test "$ac_cv_search_inet_pton" != "none required"], [
@@ -670,6 +670,7 @@
 LIBS="${LIBS} ${SOCKET_LIBS}"
 AC_LINK_IFELSE([
     AC_LANG_PROGRAM([#ifdef _WIN32
+        #include <windows.h>
         # if _WIN32_WINNT < 0x600
         #  error Needs vista+
         # endif
@@ -680,7 +680,29 @@
         inet_pton(AF_INET, "127.0.0.1", dst);
     ])],[AC_DEFINE([HAVE_INET_PTON],[1],[Define to 1 if you have inet_pton function])],[AC_LIBOBJ([inet_pton])])
 AC_CHECK_TYPES([struct if_nameindex],,,[#include <net/if.h>])
-AC_CHECK_FUNCS([if_nameindex if_nametoindex])
+
+AC_SEARCH_LIBS([if_nametoindex], [iphlpapi], [
+  AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Define to 1 if if_nametoindex is available.])
+  AS_IF([test "$ac_cv_search_if_nametoindex" != "none required"], [
+    SOCKET_LIBS="$ac_cv_search_if_nametoindex $SOCKET_LIBS"
+  ])
+],
+dnl on 32-bit Windows, API functions are stdcall, so use the prototype in the API header
+   [ AC_MSG_CHECKING(for if_nametoindex in 32-bit Windows) ]
+   [ SAVELIBS=${LIBS} ]
+   [ LIBS="${LIBS} -liphlpapi" ]
+   [ AC_LINK_IFELSE([AC_LANG_PROGRAM([
+   #include <winsock2.h>
+   #include <Iphlpapi.h>],[return if_nametoindex(0);])],
+     [ AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Define to 1 if if_nametoindex is available.]) ]
+     [ SOCKET_LIBS="-liphlpapi $SOCKET_LIBS" ]
+     [ AC_MSG_RESULT(yes) ],
+     [ AC_MSG_RESULT(no) ]
+   )]
+   [ LIBS=${SAVELIBS} ]
+)
+
+AC_CHECK_FUNC([if_nameindex])
 VLC_RESTORE_FLAGS
 AC_SUBST(SOCKET_LIBS)
 
diff --git a/src/network/udp.c b/src/network/udp.c
index b2c8a50..46ce470 100644
--- a/src/network/udp.c
+++ b/src/network/udp.c
@@ -41,6 +41,9 @@ 
 #ifdef _WIN32
 #   undef EAFNOSUPPORT
 #   define EAFNOSUPPORT WSAEAFNOSUPPORT
+#   ifdef HAVE_IF_NAMETOINDEX
+#       include <iphlpapi.h>
+#   endif
 #else
 #   include <unistd.h>
 #   ifdef HAVE_NET_IF_H