configure: move network tests before results are needed

This moves network_extralibs setup before use so that the link tests
for network functions work correctly.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 54fe299b88)

configure

@@ -2683,6 +2683,32 @@ elif check_func dlopen -ldl; then
     ldl=-ldl
 fi
 
+if enabled network; then
+    check_type "sys/types.h sys/socket.h" socklen_t
+    check_type netdb.h "struct addrinfo"
+    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
+    check_type netinet/in.h "struct sockaddr_in6"
+    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
+    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
+    # Prefer arpa/inet.h over winsock2
+    if check_header arpa/inet.h ; then
+        check_func closesocket
+    elif check_header winsock2.h ; then
+        check_func_headers winsock2.h closesocket -lws2 && \
+            network_extralibs="-lws2" || \
+        { check_func_headers winsock2.h closesocket -lws2_32 && \
+            network_extralibs="-lws2_32"; }
+        check_type ws2tcpip.h socklen_t
+        check_type ws2tcpip.h "struct addrinfo"
+        check_type ws2tcpip.h "struct ipv6_mreq"
+        check_type ws2tcpip.h "struct sockaddr_in6"
+        check_type ws2tcpip.h "struct sockaddr_storage"
+        check_struct winsock2.h "struct sockaddr" sa_len
+    else
+        disable network
+    fi
+fi
+
 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
 
@@ -2828,32 +2854,6 @@ fi
 
 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
 
-if enabled network; then
-    check_type "sys/types.h sys/socket.h" socklen_t
-    check_type netdb.h "struct addrinfo"
-    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
-    check_type netinet/in.h "struct sockaddr_in6"
-    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
-    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
-    # Prefer arpa/inet.h over winsock2
-    if check_header arpa/inet.h ; then
-        check_func closesocket
-    elif check_header winsock2.h ; then
-        check_func_headers winsock2.h closesocket -lws2 && \
-            network_extralibs="-lws2" || \
-        { check_func_headers winsock2.h closesocket -lws2_32 && \
-            network_extralibs="-lws2_32"; }
-        check_type ws2tcpip.h socklen_t
-        check_type ws2tcpip.h "struct addrinfo"
-        check_type ws2tcpip.h "struct ipv6_mreq"
-        check_type ws2tcpip.h "struct sockaddr_in6"
-        check_type ws2tcpip.h "struct sockaddr_storage"
-        check_struct winsock2.h "struct sockaddr" sa_len
-    else
-        disable network
-    fi
-fi
-
 check_header linux/videodev.h
 check_header linux/videodev2.h
 check_header sys/videoio.h