From 9b4253fe67f076b0ed085f4df99d1bb571c5910c Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Sun, 3 May 2009 17:35:44 +0000
Subject: HP-UX's X/Open network library requirement check follow-up

---
 ares/acinclude.m4 | 28 ++++++++++++++++++++++++++++
 ares/configure.ac | 22 +---------------------
 2 files changed, 29 insertions(+), 21 deletions(-)

(limited to 'ares')

diff --git a/ares/acinclude.m4 b/ares/acinclude.m4
index cf6383a33..7495faff8 100644
--- a/ares/acinclude.m4
+++ b/ares/acinclude.m4
@@ -134,6 +134,34 @@ int main (void)
 ])
 
 
+dnl CARES_CHECK_LIB_XNET
+dnl -------------------------------------------------
+dnl Verify if X/Open network library is required.
+
+AC_DEFUN([CARES_CHECK_LIB_XNET], [
+  AC_MSG_CHECKING([if X/Open network library is required])
+  tst_lib_xnet_required="no"
+  AC_COMPILE_IFELSE([
+    AC_LANG_SOURCE([[
+int main (void)
+{
+#if defined(__hpux) && defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE >= 600)
+  return 0;
+#if defined(__hpux) && defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)
+  return 0;
+#else
+  force compilation error
+#endif
+}
+    ]])
+  ],[
+    tst_lib_xnet_required="yes"
+    LIBS="$LIBS -lxnet"
+  ])
+  AC_MSG_RESULT([$tst_lib_xnet_required])
+])
+
+
 dnl CARES_CHECK_AIX_ALL_SOURCE
 dnl -------------------------------------------------
 dnl Provides a replacement of traditional AC_AIX with
diff --git a/ares/configure.ac b/ares/configure.ac
index 78dde8973..5655e5382 100644
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -191,27 +191,7 @@ dnl **********************************************************************
 dnl Checks for libraries.
 dnl **********************************************************************
 
-tst_lib_xnet_required="no"
-AC_MSG_CHECKING([if X/Open network library is required])
-CURL_CHECK_DEF([__hpux], [], [silent])
-CURL_CHECK_DEF_CC([_XOPEN_SOURCE_EXTENDED], [], [silent])
-if test "$curl_cv_have_def__XOPEN_SOURCE_EXTENDED" = "yes" &&
-  test "$curl_cv_have_def___hpux" = "yes"; then
-  my_ac_save_LIBS=$LIBS
-  LIBS="-lxnet $LIBS"
-  AC_LINK_IFELSE([
-    AC_LANG_PROGRAM([[
-    ]],[[
-      if(0 != getpeername(0, 0, 0))
-        return 1;
-    ]])
-  ],[
-    tst_lib_xnet_required="yes"
-  ],[
-    LIBS=$my_ac_save_LIBS
-  ])
-fi
-AC_MSG_RESULT([$tst_lib_xnet_required])
+CARES_CHECK_LIB_XNET
 
 dnl gethostbyname without lib or in the nsl lib?
 AC_CHECK_FUNC(gethostbyname,
-- 
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