* lib/math.in.h (signbit): Do previous change only if
__cplusplus < 201103. See Jonathan Wakely in:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/UY3VX3W7XEXYTUKHG5BALU4ACUD7ZLGE/
+2016-02-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ signbit: port back to pre-C++11 GCC
+ * lib/math.in.h (signbit): Do previous change only if
+ __cplusplus < 201103. See Jonathan Wakely in:
+ https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/UY3VX3W7XEXYTUKHG5BALU4ACUD7ZLGE/
+
2016-02-19 Kamil Dudka <kdudka@redhat.com>
mountlist: recognize autofs-mounted remote file systems, too
#if @GNULIB_SIGNBIT@
-# if @REPLACE_SIGNBIT_USING_GCC@ && !defined __cplusplus
+# if (@REPLACE_SIGNBIT_USING_GCC@ \
+ && (!defined __cplusplus || __cplusplus < 201103))
# undef signbit
/* GCC 4.0 and newer provides three built-ins for signbit. */
# define signbit(x) \