https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
--- Comment #7 from joseph at codesourcery dot com ---
On Tue, 26 Jan 2016, vincent-gcc at vinc17 dot net wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
>
> --- Comment #5 from Vincent Lefèvre ---
> (In reply to jos...@codesourcer
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
--- Comment #6 from Vincent Lefèvre ---
(In reply to Vincent Lefèvre from comment #5)
> As said in bug 28314 (resolved as wontfix), __linux is not defined on
> Linux/PowerPC in C99 mode (-std=c99).
Just in case this isn't clear (because bug 2831
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
--- Comment #5 from Vincent Lefèvre ---
(In reply to jos...@codesourcery.com from comment #4)
> __linux__ and __linux should always be defined for systems with the Linux
> kernel (plain linux only in non-ISO modes);
As said in bug 28314 (resolv
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
--- Comment #4 from joseph at codesourcery dot com ---
__linux__ and __linux should always be defined for systems with the Linux
kernel (plain linux only in non-ISO modes); __gnu_linux__ for systems with
the Linux kernel and glibc (the nearest
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
--- Comment #3 from Vincent Lefèvre ---
Well, the versions with two underscores at the beginning and two underscores at
the end seem to always be present, if this is what is intended. However even
that is not completely clear. For GNU/Linux, one
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69473
--- Comment #2 from Martin Sebor ---
The purpose of macros like __linux__ or __linux is to enable users to write
code that's portable to different versions or distributions of the same OS
without necessarily testing it on them all, or even having
