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-rw-r--r--m4/extensions.m48
1 files changed, 7 insertions, 1 deletions
diff --git a/m4/extensions.m4 b/m4/extensions.m4
index 1a8e899d369..fd1ce817f06 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -1,4 +1,4 @@
-# serial 17 -*- Autoconf -*-
+# serial 18 -*- Autoconf -*-
# Enable extensions on systems that normally disable them.
# Copyright (C) 2003, 2006-2019 Free Software Foundation, Inc.
@@ -118,6 +118,11 @@ dnl configure.ac when using autoheader 2.62.
#ifndef _XOPEN_SOURCE
# undef _XOPEN_SOURCE
#endif
+/* Enable X/Open compliant socket functions that do not require linking
+ with -lxnet on HP-UX 11.11. */
+#ifndef _HPUX_ALT_XOPEN_SOCKET_API
+# undef _HPUX_ALT_XOPEN_SOCKET_API
+#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# undef __EXTENSIONS__
@@ -163,6 +168,7 @@ dnl configure.ac when using autoheader 2.62.
[ac_cv_should_define__xopen_source=yes])])])
test $ac_cv_should_define__xopen_source = yes &&
AC_DEFINE([_XOPEN_SOURCE], [500])
+ AC_DEFINE([_HPUX_ALT_XOPEN_SOCKET_API])
])# AC_USE_SYSTEM_EXTENSIONS
# gl_USE_SYSTEM_EXTENSIONS