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<p class="MsoNormal">Not malice, just an “it’s not our problem” response. That was from one person; others have been more helpful. It turns out that it is complicated because of the gdal dependency tree. Here’s an explanation from
<a href="https://github.com/Homebrew/homebrew-core/pull/94807">https://github.com/Homebrew/homebrew-core/pull/94807</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#24292F">We're in a bit of bind here. I was able to migrate all dependents of </span><span style="font-size:9.0pt;font-family:Menlo;color:#24292F">proj@7</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#24292F"> to </span><span style="font-size:9.0pt;font-family:Menlo;color:#24292F">proj</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#24292F"> except
3:<o:p></o:p></span></p>
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<li class="MsoNormal" style="color:#24292F;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:9.0pt;font-family:Menlo">liblwgeom</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"> - deprecated, appears to be superseded by </span><span style="font-size:9.0pt;font-family:Menlo">librttopo</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"><o:p></o:p></span></li><li class="MsoNormal" style="color:#24292F;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:9.0pt;font-family:Menlo">osm2pgsql</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"> - this project appears to be active (the last release was 16 days ago). We should open an upstream issue to inquire about PROJ
8 support<o:p></o:p></span></li><li class="MsoNormal" style="color:#24292F;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:9.0pt;font-family:Menlo">spatialite-gui</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"> - this is where our remaining dependency conflict comes from, and it's not pretty. The last stable version doesn't support
PROJ 8, but the 2.1 beta does. I tried to build the 2.1 beta just to see if would work, and it fails because it needs </span><span style="font-size:9.0pt;font-family:Menlo">librasterlite2</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif">,
which we don't package. Our </span><span style="font-size:9.0pt;font-family:Menlo">librasterlite</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"> formula is for an older library which is no longer developed because it has been superseded
by </span><span style="font-size:9.0pt;font-family:Menlo">librasterlite2</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif">. Potentially we could just update the </span><span style="font-size:9.0pt;font-family:Menlo">librasterlite</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"> formula
because it has no dependents. But that doesn't help with version 2.1 of </span><span style="font-size:9.0pt;font-family:Menlo">spatialite-gui</span><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif"> still being in beta.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#24292F">Any thoughts on the best solution here?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is way outside my level of expertise. But it seems someone with some serious homebrew expertise is looking into it seriously.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="text-align:justify">Gerald C. Nelson<o:p></o:p></p>
<p class="MsoNormal" style="text-align:justify">Professor Emeritus, UIUC<o:p></o:p></p>
<p class="MsoNormal" style="text-align:justify">+1 217-390-7888 (cell)<o:p></o:p></p>
<p class="MsoNormal" style="text-align:justify">+1 970-639-2079 (land line)<o:p></o:p></p>
<p class="MsoNormal" style="text-align:justify">Skype: jerrynelson<o:p></o:p></p>
<p class="MsoNormal" style="text-align:justify">http://bit.ly/1arho7d<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Robert Coup <robert.coup@koordinates.com><br>
<b>Date: </b>Thursday, February 10, 2022 at 7:27 AM<br>
<b>To: </b>Gerald Nelson <nelson.gerald.c@gmail.com><br>
<b>Cc: </b>Paul Harwood <runette@gmail.com>, gdal-dev <gdal-dev@lists.osgeo.org><br>
<b>Subject: </b>Re: [gdal-dev] does GDAL require proj@7?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, 9 Feb 2022 at 16:30, Gerald Nelson <<a href="mailto:nelson.gerald.c@gmail.com">nelson.gerald.c@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The homebrew folks just blew me off. Said it was not their problem. So I more or less politely responded that it would be helpful if they could provide me with contact info for
the entity that was responsible for the formula. This seems like a minimal information request.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Seems it was changed to depend on proj@7 (from proj) in May 2021:
<a href="https://github.com/Homebrew/homebrew-core/commit/2bc75f848e33cfbc39b17ad4f60bb1ab6274dd65">
https://github.com/Homebrew/homebrew-core/commit/2bc75f848e33cfbc39b17ad4f60bb1ab6274dd65</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That was just before the proj formula updated from 7.2.1 to 8.0.1:
<a href="https://github.com/Homebrew/homebrew-core/commits/488f635d6b77620abed9278e2c9031676c4b9b42/Formula/proj.rb">
https://github.com/Homebrew/homebrew-core/commits/488f635d6b77620abed9278e2c9031676c4b9b42/Formula/proj.rb</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">At that point the gdal formula was using 3.3.0. I don't know off the top of my head whether 3.3.0 was compatible with Proj 8.0.1 or not.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I don't think there's any malice involved, maybe just being conservative by the packager, or working around a test failure.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Updating the GDAL Homebrew formula back to depending on proj (or proj@8) instead of proj@7 is a case of making a PR/issue to propose reverting the changes from 2bc75f84.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Rob :)<o:p></o:p></p>
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