<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="">Dirk,<div class=""><br class=""></div><div class="">I really am not qualified to answer. However, I am led to believe that this is an issue that should affect most OS X C++/macports/boost environments where there is a need to relate to GNU libraries. Perhaps we get more clarity when George reports back or else move the topic to a dedicated C++/OS X forum.</div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Ben</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 06 Aug 2016, at 23:58, Dirk Eddelbuettel <<a href="mailto:edd@debian.org" class="">edd@debian.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">stdlib=libstdc++</span></div></blockquote></div><br class=""></div></body></html>