diff options
Diffstat (limited to 'lib/math.in.h')
| -rw-r--r-- | lib/math.in.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/math.in.h b/lib/math.in.h index 4f2aa862b..b3832c10e 100644 --- a/lib/math.in.h +++ b/lib/math.in.h @@ -1,6 +1,6 @@ /* A GNU-like <math.h>. - Copyright (C) 2002-2003, 2007-2014 Free Software Foundation, Inc. + Copyright (C) 2002-2003, 2007-2016 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -2205,7 +2205,8 @@ _GL_WARN_REAL_FLOATING_DECL (isnan); #if @GNULIB_SIGNBIT@ -# if @REPLACE_SIGNBIT_USING_GCC@ +# 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) \ |