ghc-filesystem @1.5.10 does not build on PPC: Easy fix apparently found

[barracuda156]

c1plus: all warnings being treated as errors
make[2]: *** [test/CMakeFiles/filesystem_test.dir/filesystem_test.cpp.o] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/work/build'
make[1]: *** [test/CMakeFiles/filesystem_test.dir/all] Error 2
cc1plus: all warnings being treated as errors
make[2]: *** [test/CMakeFiles/fwd_impl_test.dir/impl_test.cpp.o] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/work/build'
make[1]: *** [test/CMakeFiles/fwd_impl_test.dir/all] Error 2
cc1plus: all warnings being treated as errors
make[2]: *** [test/CMakeFiles/filesystem_test_cpp17.dir/filesystem_test.cpp.o] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/work/build'
make[1]: *** [test/CMakeFiles/filesystem_test_cpp17.dir/all] Error 2
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/work/build'
make: *** [all] Error 2
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/work/build'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/work/build" && /usr/bin/make -j4 -w all VERBOSE=ON 
Exit code: 2
Error: Failed to build ghc-filesystem: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_ghc-filesystem/ghc-filesystem/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there
is a bug.
Error: Processing of port ghc-filesystem failed

[barracuda156]

This line added makes it build:

configure.args-append -DGHC_FILESYSTEM_BUILD_TESTING=OFF

[evanmiller (Evan Miller)]

In ca0a35dea7bf1caad510ec0123a8d3d56d3c44cd/macports-ports (master):

ghc-filesystem: skip tests on PowerPC / i386

Closes: #64654