MinGW/MSYS needs lib ws2_32 for proper operation of configure script.

diff --git a/ares/configure.ac b/ares/configure.ac
index e2867d10f337c53e5b139b8501ed112fd3d27d26..989dee2adf450aaae551809aa81f28b27acf6a4a 100644 (file)
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -81,6 +81,18 @@ esac
 AC_MSG_RESULT($need_no_undefined)
 AM_CONDITIONAL(NO_UNDEFINED, test x$need_no_undefined = xyes)
 
+AC_MSG_CHECKING([if we need ws2_32 lib])
+case $host in
+  *-*-mingw* | *-*-pw32*)
+    need_lib_ws2_32=yes
+    LIBS="$LIBS -lws2_32"
+    ;;
+  *)
+    need_lib_ws2_32=no
+    ;;
+esac
+AC_MSG_RESULT($need_lib_ws2_32)
+
 dnl Checks for header files.
 AC_HEADER_STDC