<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=""><pre style="white-space: pre-wrap; background-color: rgb(255, 255, 255);" class=""></pre><blockquote type="cite" class=""><pre style="white-space: pre-wrap; background-color: rgb(255, 255, 255);" class="">I try to fix build issues on old systems. The problem is that it’s very difficult to
do it since I need to merge blindly something and wait for the buildbots.</pre></blockquote><div class="">If you would like to set up a VM or several to help do this, it is very easy, I found.</div><div class=""><br class=""></div><div class="">I like Parallels, and it does VMs from 10.5 to BigSur on my 2010 MacPro 5,1 running Mojave.</div><div class=""><br class=""></div><div class="">I put them all on one 1TB SSD.</div><div class=""><br class=""></div><div class="">All the systems from 10.7 to BigSur are available free from Apple, as are the Xcode setups, the documentation, and the command line tools.</div><div class=""><br class=""></div><div class="">10.5 and 10.6 you have to find in Server editions to run on Parallels. VirtualBox runs my 10.4 Intel VM.</div><div class=""><br class=""></div><div class="">I think it's really hard to just throw things at the buildbots and hope they stick.</div><div class=""><br class=""></div><div class="">Best,</div><div class=""><br class=""></div><div class="">Ken</div><div class=""><br class=""></div></body></html>