<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Ken,<div class=""><br class=""></div><div class="">Google sent me to </div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://stackoverflow.com/questions/10613126/what-are-the-differences-between-std-c11-and-std-gnu11" class="">http://stackoverflow.com/questions/10613126/what-are-the-differences-between-std-c11-and-std-gnu11</a></div><div class=""><br class=""></div><div class="">for the answer to a question about the difference between. -std=c++11 and -std=gnu++1. The answer</div><div class="">says the gnu flag allows extensions that are "implementation-defining" or "specifying things that the</div><div class="">standard is silent on."</div><div class=""><br class=""></div><div class="">The Mac and some flavors of BSD now favor clang; gcc is no longer provided by XCode.</div><div class="">Therefore I recommend -std=c++11.</div><div class=""><br class=""></div><div class="">Dick Koch</div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Feb 3, 2017, at 7:59 AM, Ken Brown <<a href="mailto:kbrow1i@gmail.com" class="">kbrow1i@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On 2/2/2017 6:01 PM, Karl Berry wrote:<br class=""><blockquote type="cite" class=""> kb><br class=""> -AX_CXX_COMPILE_STDCXX([11], [noext])<br class=""> +AX_CXX_COMPILE_STDCXX([11])<br class=""><br class="">Ken, I sent the idea to Martin. Will see what he says.<br class=""><br class=""> dk> Maybe this information could be used to fix then TeXLive source<br class=""><br class="">Dick, I sent this info to Martin also. Better to make changes upstream<br class="">than in TL, if at all possible, after all.<br class=""></blockquote><br class="">Hi Karl and Martin,<br class=""><br class="">I wonder if Dick's issue could be the same as mine. I think his error messages all refer to types, functions, and constants that are not defined in ISO C/C++, so the fix might again be to use -std=gnu++11 or -D_DEFAULT_SOURCE.<br class=""><br class="">Ken<br class=""></div></div></blockquote></div><br class=""></div></body></html>