[PATCH lib/libXdmcp] Link with winsock library for socket functions on MinGW

[Jon TURNEY]

Signed-off-by: Jon TURNEY <jon.turney at dronecode.org.uk>
---
 configure.ac | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/configure.ac b/configure.ac
index d117aa1..21a6048 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,6 +55,14 @@ AC_PROG_LN_S
 # Checks for libraries.
 AC_SEARCH_LIBS([recvfrom],[socket])
 
+case $host_os in
+     *mingw*)
+        AC_CHECK_LIB([ws2_32],[main])
+        ;;
+     *)
+        ;;
+esac
+
 # Checks for library functions.
 AC_CHECK_LIB([bsd], [arc4random_buf])
 AC_CHECK_FUNCS([srand48 lrand48 arc4random_buf])
-- 
2.3.2