<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Sun, Mar 16, 2014 at 11:33 AM, René J.V. <span dir="ltr"><<a href="mailto:rjvbertin@gmail.com" target="_blank">rjvbertin@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div class="">On Sunday March 16 2014 09:56:47 Ryan Schmidt wrote:> clang 3.5 and later require C++11, and will say so if you try to install them on a system without C++11. Effectively, this means clang 3.5 and later require OS X 10.9 Mavericks or later.<br>
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</div>Hmmm, I thought clang supported C++11 ; I presume you're referring to a system-dependent C++11 runtime that is not (or cannot) be provided by clang itself? Out of curiosity, how does this work on Linux?<br></blockquote>
<div><br></div><div>Apple provides, and ships libraries that require, specific runtimes. You could build the C++11 runtime yourself, but you will get link errors with Apple libraries that use C++ because they only work with the old runtime. (And conversely on 10.9, Apple libraries require the C++11 runtime and you can't use them with stuff requiring the older one.)</div>
<div><br></div><div><a href="http://trac.macports.org/wiki/FAQ#libcpp">http://trac.macports.org/wiki/FAQ#libcpp</a><br></div><div><br></div><div>Linux gets around this by forcing everything to the new runtime; Apple will not ship GPL3 stuff so stuck to older gcc with the older runtime, until they moved to clang completely in 10.9 and switched to clang's C++11 runtime. (gcc/g++'s C++11 runtime is GPL3+ only.)</div>
<div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">I hate it when generic programming languages or their features become dependent on an OS. I can more or less accept that for ObjC because like .Net it is so closely related to an OS-specific GUI framework. But much less so for C++ ... isn't there some kind of standards committee that could avoid this from happening?</blockquote>
</div><div><br></div><div>Hi, "C++11" refers to a standard defined by a standards committee. The problem is a *licensing* issue, and Apple made its choice in that matter and nobody can do anything about it.</div>
<div><br></div>-- <br><div dir="ltr"><div>brandon s allbery kf8nh sine nomine associates</div><div><a href="mailto:allbery.b@gmail.com" target="_blank">allbery.b@gmail.com</a> <a href="mailto:ballbery@sinenomine.net" target="_blank">ballbery@sinenomine.net</a></div>
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