Orion Poplawski wrote:
Some comments from fedora-devel: https://lists.fedoraproject.org/archives/list/de...@lists.fedoraproject.org/message/UY3VX3W7XEXYTUKHG5BALU4ACUD7ZLGE/
Thanks, I didn't understand those comments about #defining signbit to 1, but it does appear that the recent patch should apply only if C++11 or later, so I installed the attached further patch into gnulib.
>From a72d7017053394f1603bdb2cf6b605e61eaa800a Mon Sep 17 00:00:00 2001 From: Paul Eggert <egg...@cs.ucla.edu> Date: Sat, 20 Feb 2016 07:52:53 -0800 Subject: [PATCH] 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/de...@lists.fedoraproject.org/message/UY3VX3W7XEXYTUKHG5BALU4ACUD7ZLGE/ --- ChangeLog | 7 +++++++ lib/math.in.h | 3 ++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index 7e06adf..8634579 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2016-02-20 Paul Eggert <egg...@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/de...@lists.fedoraproject.org/message/UY3VX3W7XEXYTUKHG5BALU4ACUD7ZLGE/ + 2016-02-19 Kamil Dudka <kdu...@redhat.com> mountlist: recognize autofs-mounted remote file systems, too diff --git a/lib/math.in.h b/lib/math.in.h index afb080c..e3fd994 100644 --- a/lib/math.in.h +++ b/lib/math.in.h @@ -2205,7 +2205,8 @@ _GL_WARN_REAL_FLOATING_DECL (isnan); #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) \ -- 2.5.0
