[MacPorts] #71821: Cabal does not build / OSX Sequoia 15.2 / dependency of Jupyter-Lab

[MacPorts]

#71821: Cabal does not build / OSX Sequoia 15.2 / dependency of Jupyter-Lab
-------------------------------------------------+--------------------
 Reporter:  christianboily                       |      Owner:  (none)
     Type:  defect                               |     Status:  new
 Priority:  Normal                               |  Milestone:
Component:  ports                                |    Version:
 Keywords:  Cabal, Haskell, Jupyter, Jupyterlab  |       Port:  Cabal
-------------------------------------------------+--------------------
 The port Cabal fail to compile (with/out clean, same result) :

 sudo port install cabal
 --->  Computing dependencies for cabal
 --->  Fetching archive for cabal
 --->  Attempting to fetch cabal-3.10.3.0_0.darwin_24.arm64.tbz2 from
 https://fra.de.packages.macports.org/cabal
 --->  Attempting to fetch cabal-3.10.3.0_0.darwin_24.arm64.tbz2 from
 https://packages.macports.org/cabal
 --->  Attempting to fetch cabal-3.10.3.0_0.darwin_24.arm64.tbz2 from
 https://mse.uk.packages.macports.org/cabal
 --->  Building cabal
 Error: Failed to build cabal: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_cabal/cabal/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there is a bug.


 From the logfile (cited above) I found the first major error message (not
 simpler ones related to downloads /fetching, omitted here ) :

 :info:build [__2] fail (backjumping, conflict set: Cabal, base, unix)
 :info:build After searching the rest of the dependency tree exhaustively,
 these were the
 :info:build goals I've had most trouble fulfilling: Cabal, base, unix
 :info:build Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_r
 elease_tarballs_ports_lang_cabal/cabal/work/cabal-3.10.3.0" &&
 /opt/local/bin/cabal-prebuilt --config-file=/opt/local/var/ma
 cports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_cabal/cabal/work/.home/
 .cabal/config build cabal-install --project-file=cabal.project.release
 -j10 --builddir=/opt/local/var/macports/build/_opt_lo
 cal_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_cabal/cabal/work/dist
 --prefix=/opt/local -
 -datadir=/opt/local/share/cabal --docdir=/opt/local/share/doc/cabal
 --htmldir=/opt/local/share/doc/cabal --haddockdir=/opt/l
 ocal/share/doc/cabal --sysconfdir=/opt/local/etc/cabal --enable-
 relocatable --bindir=/opt/local/bin --datadir=/opt/local/sha
 re/cabal
 :info:build Exit code: 1
 :error:build Failed to build cabal: command execution failed

 Note - the first persone "I" in the message is part of the output message.

-- 
Ticket URL: <https://trac.macports.org/ticket/71821>
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