inet: Make IN6_IS_ADDR_UNSPECIFIED etc. usable with POSIX [BZ #16421]

Previously, under some feature test macros and compilers, the
macros were defined, but references undefined struct members
in their implementation.

1 files changed, 24 insertions, 0 deletions

diff --git a/inet/tst-checks-posix.c b/inet/tst-checks-posix.c
new file mode 100644
index 0000000000..c41a180bf5
--- /dev/null
+++ b/inet/tst-checks-posix.c
@@ -0,0 +1,24 @@
+/* Test IPv6 classification macros in POSIX mode.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Process tst-checks.c in POSIX mode.  */
+#undef _GNU_SOURCE
+#define _POSIX_C_SOURCE 200112L
+#define _ISOMAC
+
+#include "tst-checks.c"