[MacPorts] #68274: emacs 29.1+nativecomp+treesitter: configuration failure

[MacPorts]

#68274: emacs 29.1+nativecomp+treesitter: configuration failure
-----------------------------+--------------------
  Reporter:  kenniskoldewyn  |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.8.1
Resolution:                  |   Keywords:  sonoma
      Port:  emacs           |
-----------------------------+--------------------

Comment (by hutches):

 This may be related, so I'll avoid creating a potentially duplicate defect
 report. After an update to gcc (gcc12 @12.3.0_1+stdlib_flag) today, Emacs
 (at least) would fail to start with a missing dynamic shared library error
 of the following form (as expected, a similar error is produced when
 attempting to start emacs-app):


 {{{
 dyld[69541]: Library not loaded: @rpath/libgccjit.0.dylib
   Referenced from: <30776C42-135A-363C-9A57-39E9A1EA4AA4>
 /opt/local/bin/emacs-29.1
   Reason: tried: '/opt/local/lib/gcc12/libgccjit.0.dylib' (no such file),
 '/System/Volumes/Preboot/Cryptexes/OS/opt/local/lib/gcc12/libgccjit.0.dylib'
 (no such file), '/opt/local/lib/gcc12/libgccjit.0.dylib' (no such file),
 '/System/Volumes/Preboot/Cryptexes/OS/opt/local/lib/gcc12/libgccjit.0.dylib'
 (no such file), '/usr/local/lib/libgccjit.0.dylib' (no such file),
 '/usr/lib/libgccjit.0.dylib' (no such file, not in dyld cache)
 Abort
 }}}

 Reviewing backups from prior to the gcc update, it appears that the
 libgccjit.0.dylib file that had previously resided in /opt/local/lib/gcc12
 was removed and replaced by a symlink to a target of the same name in
 /opt/local/lib/libgcc, except that no corresponding shared library
 exists/was built for gcc JIT. All of the other symlinks in
 /opt/local/lib/gcc12 point to targets that actually exist and were
 updated/installed in /opt/local/lib/libgcc during the course of today's
 rebuild of gcc (i.e., only the target for the gcc JIT shared library is
 missing).

 System details:

 {{{
 Model Name: Mac Studio (2022)
 Model Identifier: Mac13,1
 Model Number: Z14J000GDLL/A
 Chip: Apple M1 Max
 System Version: macOS 13.5.2 (22G91)
 Kernel Version: Darwin 22.6.0
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/68274#comment:2>
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