<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="">Any port that forces the use of gcc10 or older on M1 macs cannot work, as these gcc versions are never going to be supported on these machines. Even gcc11 support seems unlikely at this time, so for a while gccdevel is likely going to be the only supported version on these machines, which currently uses a special fork of the gcc mainline by the primary Darwin maintainer with experimental M1 support.<div class=""><br class=""></div><div class="">However, ports using the compilers PG should automatically use gccdevel, so we need to see why the port below is trying to install libgcc9, as this is incorrect. Please show what</div><div class=""><br class=""></div><div class="">port info sundials2 +atlas</div><div class=""><br class=""></div><div class="">and</div><div class=""><br class=""></div><div class="">port rdeps <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">sundials2 +atlas</span></div><div class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><br class=""></span></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">Finally, if you want this to get fixed you need to follow the final instructions below and submit a trac ticket for the issue.</span></font></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class=""><br class=""></span></font></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">Chris</span></font></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class=""><br class=""></span></font></div><div class=""><div><blockquote type="cite" class=""><div class="">On 18 Apr 2021, at 11:40 am, <a href="mailto:petr.2006@centrum.cz" class="">petr.2006@centrum.cz</a> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hello,<br class=""><br class="">I run "sudo port selfupdate" and "sudo port upgrade outdated" occasionally and I see that there are updates and improvements. Which is nice.<br class=""><br class="">Yes, gcc-devel is pulled by default, it includes fortran and it seems to work.<br class=""><br class="">However I am experiencing problems with some packages which need other version which is ether not available for arm64 or it is conflict with gcc-devel .<br class=""><br class="">Just as an example, I tried to install cantera and it wants sundials2 +atlas<br class="">but :<br class=""><br class="">sudo port install sundials2 +atlas<br class="">Warning: The macOS 11.2 SDK does not appear to be installed. Ports may not build correctly.<br class="">Warning: You can install it as part of the Xcode Command Line Tools package by running `xcode-select --install'.<br class="">---> Computing dependencies for sundials2<br class="">Error: Can't install libgcc9 because conflicting ports are active: libgcc-devel<br class="">Error: Follow <a href="https://guide.macports.org/#project.tickets" class="">https://guide.macports.org/#project.tickets</a> to report a bug.<br class="">Error: Processing of port sundials2 failed<br class=""><br class="">And I am finished at this point.<br class=""><br class="">Petr<br class=""><br class=""><br class="">______________________________________________________________<br class=""><blockquote type="cite" class="">Od: "Marius Schamschula" <<a href="mailto:lists@schamschula.com" class="">lists@schamschula.com</a>><br class="">Komu: "MacPorts Users" <<a href="mailto:macports-users@lists.macports.org" class="">macports-users@lists.macports.org</a>><br class="">Datum: 17.04.2021 20:50<br class="">Předmět: Re: Update on Big Sur Problems<br class=""><br class="">James,<br class=""><br class="">gcc-devel works fine on M1 macs. E.g. I’ve used it to install octave.<br class=""><br class=""><blockquote type="cite" class="">On Apr 17, 2021, at 1:05 PM, James Secan <<a href="mailto:james.secan@gmail.com" class="">james.secan@gmail.com</a>> wrote:<br class=""><br class="">I just checked the MacPorts wiki page for Big Sur problems and noted that it hasn’t been updated for three months (at least that’s what the wiki page says). With the possibility that new M1 iMacs might show up soon can you provide a short update on where things stand vis-a-vis Big Sur and M1-based Macs? I’m most interested in where things stand on the gcc compiler package (gfortran in particular).<br class=""><br class="">Thanks.<br class="">Jim<br class="">Seattle, WA<br class=""></blockquote><br class="">Marius<br class="">--<br class="">Marius Schamschula<br class=""><br class=""><br class=""><br class=""><br class=""><br class=""><br class="">Marius<br class="">--<br class="">Marius Schamschula<br class=""><br class=""><br class=""><br class=""><br class=""><br class=""><br class=""></blockquote></div></div></blockquote></div><br class=""></div></div></body></html>