> > Is it really a problem to use only libgccjit 12.0 and older for the > release branch? > No. This libgccjit.dylib path problem is specific for the situation of Homebrew libgccjit 12.1.0 and above. I found that this problem is caused by the following Homebrew change: https://github.com/Homebrew/homebrew-core/commit/eb60b7d88a5bc4ffdff8859e88c4c11f5f403167#diff-14dead016a29e43c6e17b0e951d2a23e62156cf732e7d6d2cf603934397e8670R52 --8<---------------cut here---------------start------------->8--- eb60b7d88a5bc4ffdff8859e88c4c11f5f403167 Author: Francois-Xavier Coudert AuthorDate: Fri Apr 29 23:47:04 2022 +0200 Commit: BrewTestBot <1589480+BrewTestBot@users.noreply.github.com> CommitDate: Fri Aug 5 14:27:51 2022 +0000 Parent: 39c1b9e gcc 12.1.0 Contained: master libgccjit 12.1.0 - align with GCC lib dir --8<---------------cut here---------------end--------------->8--- --8<---------------cut here---------------start------------->8--- + # Use `lib/gcc/current` to align with the GCC formula. args = %W[ --prefix=#{prefix} - --libdir=#{lib}/gcc/#{version.major} + --libdir=#{lib}/gcc/current --8<---------------cut here---------------end--------------->8--- But, unfortunately, macOS Homebrew users have no way to keep installing libgccjit 11.x at the moment. Yes, its just a matter of maintaining Homebrew libgccjit package... :-< gcc packages are maintaned as gcc@VERSION, but libgccjit is not: --8<---------------cut here---------------start------------->8--- $ brew search gcc ==> Formulae aarch64-elf-gcc gcc@5 i686-elf-gcc scc gcc ✔ gcc@6 libgccjit ✔ tcc gcc@10 gcc@7 x86_64-elf-gcc ncc gcc@11 gcc@8 grc gcc@4.9 gcc@9 ghc ✔ ==> Casks gcc-aarch64-embedded gcs gcc-arm-embedded icc $ --8<---------------cut here---------------start------------->8--- --8<---------------cut here---------------start------------->8--- $ ./emacs/28/bin/emacs-28.1.91 dyld[40808]: Library not loaded: '/usr/local/opt/libgccjit/lib/gcc/11/libgccjit.0.dylib' Referenced from: '/Users/naofumi/.local/emacs/28/bin/emacs-28.1.91' Reason: tried: '/usr/local/opt/libgccjit/lib/gcc/11/libgccjit.0.dylib' (no such file), '/usr/local/lib/libgccjit.0.dylib' (no such file), '/usr/lib/libgccjit.0.dylib' (no such file) zsh: abort ./emacs/28/bin/emacs-28.1.91 $ $ otool -L ./emacs/28/bin/emacs-28.1.91 emacs/28/bin/emacs-28.1.91: /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 2113.40.126) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon (compatibility version 2.0.0, current version 165.0.0) /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore (compatibility version 1.2.0, current version 1.11.0) /usr/local/opt/libtiff/lib/libtiff.5.dylib (compatibility version 14.0.0, current version 14.0.0) /usr/local/opt/jpeg/lib/libjpeg.9.dylib (compatibility version 15.0.0, current version 15.0.0) /usr/local/opt/libpng/lib/libpng16.16.dylib (compatibility version 54.0.0, current version 54.0.0) /usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.11) /usr/local/opt/giflib/lib/libgif.dylib (compatibility version 0.0.0, current version 7.2.0) /usr/local/opt/librsvg/lib/librsvg-2.2.dylib (compatibility version 51.0.0, current version 51.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1311.100.3) /usr/local/opt/glib/lib/libgio-2.0.0.dylib (compatibility version 7201.0.0, current version 7201.3.0) /usr/local/opt/gdk-pixbuf/lib/libgdk_pixbuf-2.0.0.dylib (compatibility version 4201.0.0, current version 4201.8.0) /usr/local/opt/glib/lib/libgobject-2.0.0.dylib (compatibility version 7201.0.0, current version 7201.3.0) /usr/local/opt/glib/lib/libglib-2.0.0.dylib (compatibility version 7201.0.0, current version 7201.3.0) /usr/local/opt/gettext/lib/libintl.8.dylib (compatibility version 11.0.0, current version 11.0.0) /usr/local/opt/cairo/lib/libcairo.2.dylib (compatibility version 11603.0.0, current version 11603.0.0) /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit (compatibility version 1.0.0, current version 613.1.17) /usr/lib/libxml2.2.dylib (compatibility version 10.0.0, current version 10.9.0) /usr/lib/libncurses.5.4.dylib (compatibility version 5.4.0, current version 5.4.0) /usr/local/opt/gnutls/lib/libgnutls.30.dylib (compatibility version 64.0.0, current version 64.1.0) /usr/local/opt/little-cms2/lib/liblcms2.2.dylib (compatibility version 3.0.0, current version 3.13.0) /usr/local/opt/jansson/lib/libjansson.4.dylib (compatibility version 19.0.0, current version 19.0.0) /usr/local/opt/gmp/lib/libgmp.10.dylib (compatibility version 15.0.0, current version 15.1.0) /usr/local/opt/libgccjit/lib/gcc/11/libgccjit.0.dylib (compatibility version 0.0.0, current version 0.0.1) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1331.0.7) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1858.112.0) /System/Library/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics (compatibility version 64.0.0, current version 1557.5.4) /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices (compatibility version 1.0.0, current version 1141.1.0) /System/Library/Frameworks/CoreText.framework/Versions/A/CoreText (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1858.112.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) $ --8<---------------cut here---------------end--------------->8--- Regards, Naofumi