GitX build fails: error: unsafe_unretained property 'parent' may not also be declared __weak

[chucko58 (Chuck Fry)]

On a MacBook Pro (Retina, 15-inch, Early 2013) running macOS Sierra 10.12.6:

MacPorts 2.5.3 is installed without root privileges, with prefix=/Users/cfry

'port install gitx' fails with what appear to be clang compiler error messages. Several files have errors similar to this:

:info:build In file included from /Users/cfry/var/macports/build/_Users_cfry_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_GitX/GitX/work/gitx-0.7.1/ApplicationController.m:10:
:info:build In file included from /Users/cfry/var/macports/build/_Users_cfry_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_GitX/GitX/work/gitx-0.7.1/PBGitRevisionCell.h:10:
:info:build In file included from /Users/cfry/var/macports/build/_Users_cfry_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_GitX/GitX/work/gitx-0.7.1/PBGitGrapher.h:10:
:info:build In file included from /Users/cfry/var/macports/build/_Users_cfry_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_GitX/GitX/work/gitx-0.7.1/PBGitCommit.h:11:
:info:build /Users/cfry/var/macports/build/_Users_cfry_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_GitX/GitX/work/gitx-0.7.1/PBGitTree.h:37:37: error: unsafe_unretained property 'parent' may not also be declared __weak
:info:build @property(assign) __weak PBGitTree* parent;

Not sure if this is the proximate cause of the build failure, but it can't be helping.

See attached (gzipped) log file.

[chucko58 (Chuck Fry)]

Gzipped install log from 'port install gitx'

[kencu (Ken)]

This software is truly ancient.

After some monkeying around, I got the same error.

[neverpanic (Clemens Lang)]

GitX needs to replaced by a successor. See #42957.