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Date: Thu, 9 Jul 2015 02:47:19 -0700
Message-ID: <CAGHfRMDy+bh1w0csW0ufw3xZP9AA9kLUdKVRzoD+u7+ejnJyAA@mail.gmail.com>
Subject: Re: svn commit: r285284 - head/lib/liblzma
From: NGie Cooper <yaneurabeya@gmail.com>
To: David Chisnall <theraven@freebsd.org>
Cc: Dimitry Andric <dim@freebsd.org>, Adrian Chadd <adrian.chadd@gmail.com>, 
 Pedro Giffuni <pfg@freebsd.org>, Luigi Rizzo <luigi@freebsd.org>, 
 "src-committers@freebsd.org" <src-committers@freebsd.org>, 
 "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, 
 "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>
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On Thu, Jul 9, 2015 at 2:23 AM, David Chisnall <theraven@freebsd.org> wrote=
:
> On 9 Jul 2015, at 10:19, NGie Cooper <yaneurabeya@gmail.com> wrote:
>>
>> Yes, but this case will fail for gcc 4.3 ~ 4.4 through 5.x if you use
>> my recommended method...
>
> I think that=E2=80=99s probably fine.  We basically have four cases that =
we care about:
>
> - People who are using clang because it=E2=80=99s the system compiler [wo=
rks]
> - People who are using new clang from ports / svn because it=E2=80=99s ne=
w and shiny [works]
> - People who are using gcc from base because it=E2=80=99s the system comp=
iler [works]
> - People who are using new gcc from ports / svn because it=E2=80=99s new =
and shiny [works]
>
> The only people it doesn=E2=80=99t work for are the ones building FreeBSD=
 using an out-of-tree old GCC.  There probably aren=E2=80=99t too many of t=
hose=E2=80=A6

Item 4. needs to be full understood when working with some features as
it could result in undefined behavior.