-dnl getnameinfo, which implies {get,free}addrinfo, but not gai_strerror,
-dnl -lws2_32 required with Mingw32, -lresolv NOT needed on Solaris.
-dnl AC_SEARCH_LIBS won't work with Mingw32
-AH_TEMPLATE(HAVE_GETNAMEINFO,
- [Define to 1 if you have the `getnameinfo' function.])
-ac_func_getnameinfo_save_LIBS=$LIBS
-AS_IF([test "${SYS}" = "mingw32"],
- [LIBS="-lws2_32 $LIBS"])
-AC_CACHE_CHECK([for getnameinfo], ac_cv_func_getnameinfo,
-[AC_LINK_IFELSE([AC_LANG_PROGRAM([
-[#include <sys/types.h>
-#if defined( UNDER_CE )
-# include <winsock.h>
-#elif defined( WIN32 )
-# include <winsock2.h>
-# include <ws2tcpip.h>
-#else
-# include <sys/socket.h>
-# include <netdb.h>
-#endif]
-], [[getnameinfo(0,0,0,0,0,0,0);]])],
-ac_cv_func_getnameinfo=yes,
-ac_cv_func_getnameinfo=no)])
-AS_IF([test $ac_cv_func_getnameinfo = yes],
- [AC_DEFINE(HAVE_GETNAMEINFO)])
-LIBS=$ac_func_getnameinfo_save_LIBS
-
-dnl Cannot have gai_strerror if not getaddrinfo
-AH_TEMPLATE(HAVE_GAI_STRERROR,
- [Define to 1 if you have the `gai_strerror' function.])
-AC_CACHE_CHECK([for gai_strerror], ac_cv_func_gai_strerror,
-[AC_LINK_IFELSE([AC_LANG_PROGRAM([
+dnl getaddrinfo, getnameinfo and gai_strerror check
+dnl -lresolv is NOT needed on Solaris
+dnl we purposedly make the test fail on Windows
+AC_CHECK_FUNCS([getaddrinfo getnameinfo gai_strerror])
+AH_TEMPLATE(HAVE_ADDRINFO, [Define to `1' if <netdb.h> defines struct addrinfo.])
+AC_CHECK_TYPES([struct addrinfo],[AC_DEFINE(HAVE_ADDRINFO)],,