1 files changed, 46 insertions, 0 deletions
diff --git a/m4/dnsperf.m4 b/m4/dnsperf.m4
new file mode 100644
index 0000000..d0d8d03
--- /dev/null
+++ b/m4/dnsperf.m4
@@ -0,0 +1,46 @@
+# Copyright 2019-2021 OARC, Inc.
+# Copyright 2017-2018 Akamai Technologies
+# Copyright 2006-2016 Nominum, Inc.
+# All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+AC_DEFUN([AX_TYPE_SOCKLEN_T],
+[AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
+[
+  AC_TRY_COMPILE(
+  [#include <sys/types.h>
+   #include <sys/socket.h>],
+  [socklen_t len = 42; return len;],
+  ac_cv_type_socklen_t=yes,
+  ac_cv_type_socklen_t=no)
+])
+  if test $ac_cv_type_socklen_t != yes; then
+    AC_DEFINE([socklen_t], [int], [The type of socklen_t.])
+  fi
+])
+
+AC_DEFUN([AX_SA_LEN],
+[AC_CACHE_CHECK([for sa_len], ac_cv_sa_len,
+[
+  AC_TRY_COMPILE(
+  [#include <sys/types.h>
+   #include <sys/socket.h>],
+  [struct sockaddr sa; sa.sa_len = 0;],
+  ac_cv_sa_len=yes,
+  ac_cv_sa_len=no)
+])
+  if test $ac_cv_sa_len = yes; then
+    AC_DEFINE([HAVE_SA_LEN], [1], [Set if struct sockaddr sa_len exists.])
+  fi
+])