Merge commit '441aa3044f43e5572f58c354f01e6bc070acd5c7'

[gnulib.git] / m4 / netdb_h.m4

diff --git a/m4/netdb_h.m4 b/m4/netdb_h.m4
index 6ae1248..5a12251 100644 (file)
--- a/m4/netdb_h.m4
+++ b/m4/netdb_h.m4
@@ -1,4 +1,4 @@
-# netdb_h.m4 serial 4
+# netdb_h.m4 serial 5
 dnl Copyright (C) 2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,8 +9,14 @@ AC_DEFUN([gl_HEADER_NETDB],
   AC_REQUIRE([gl_NETDB_H_DEFAULTS])
   gl_CHECK_NEXT_HEADERS([netdb.h])
   if test $ac_cv_header_netdb_h = yes; then
-    AC_CHECK_TYPES([struct addrinfo], [NETDB_H=''], [NETDB_H='netdb.h'],
-                   [[#include <netdb.h>]])
+    AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM([[
+         #include <netdb.h>
+         struct addrinfo a;
+         int b = EAI_OVERFLOW;
+         int c = AI_NUMERICSERV;
+       ]])],
+      [NETDB_H=''], [NETDB_H='netdb.h'])
     HAVE_NETDB_H=1
   else
     NETDB_H='netdb.h'