<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi,<div class=""><br class=""></div><div class="">10.15 issues are worked around in</div><div class=""><br class=""></div><div class=""><a href="https://github.com/macports/macports-ports/commit/36c3a9a2844ab979be1388280922b25d1f7b56ce" class="">https://github.com/macports/macports-ports/commit/36c3a9a2844ab979be1388280922b25d1f7b56ce</a></div><div class=""><br class=""></div><div class=""><a href="https://github.com/macports/macports-ports/commit/2de6959b098cb95883863a2cf46575dfcf4c211c" class="">https://github.com/macports/macports-ports/commit/2de6959b098cb95883863a2cf46575dfcf4c211c</a></div><div class=""><br class=""></div><div class="">They blacklist Xcode 11 clang, and thus the builds fallback to one of MacPorts MP’s clang compilers (9.0). </div><div class=""><br class=""></div><div class="">Running Xcode 10 on macOS10.15 is unnecessary, and not really a good idea.</div><div class=""><br class=""></div><div class="">For ‘Part B’ difficult to say as long as Xcode has issues (which I understand as off 11.1 it does). Until those are addressed hard to say if the project themselves also have issues to address.</div><div class=""><br class=""></div><div class="">Chris<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 17 Oct 2019, at 9:58 pm, Gill Bates <<a href="mailto:smogus@shaw.ca" class="">smogus@shaw.ca</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt;" class=""><div class="">I recently updated to catalina (10.15) and Xcode (11.1), installed MacPorts from source (2.6.1) and had it build mpv and its dependencies. However, mpv (and ffmpeg for example) do not run apparently related to some new default compiler option enforcing 16 byte stack alignment? See:</div><div class=""><a href="https://trac.ffmpeg.org/ticket/8073" class="">https://trac.ffmpeg.org/ticket/8073</a><br data-mce-bogus="1" class=""></div><div class=""><a href="https://github.com/mpv-player/mpv/issues/7053" class="">https://github.com/mpv-player/mpv/issues/7053</a><br data-mce-bogus="1" class=""></div><div class=""><a href="https://forums.developer.apple.com/thread/121887" class="">https://forums.developer.apple.com/thread/121887</a><br data-mce-bogus="1" class=""></div><div class=""><br data-mce-bogus="1" class=""></div><div class="">The advice seems to be to revert Xcode but will rebuilding everything with Xcode 10.3 on macos 10.15 really be a workaround? Or is a better choice to modify portfiles to include the CFLAG option to disable stack checks as mentioned in the linked posts and use Xcode 11.1?</div><div class=""><br data-mce-bogus="1" class=""></div><div class="">"Part B" is a question for my understanding, is this a really an Xcode/compiler issue or a problem with the source software packages?</div><div class=""><br data-mce-bogus="1" class=""></div><div class="">Thanks in advance for any advice.</div></div></div></div></blockquote></div><br class=""></div></body></html>