$ sudo port install glib2 +quartz +universal
--->  Computing dependencies for glib2
--->  Fetching archive for glib2
--->  Attempting to fetch glib2-2.62.6_1+quartz+universal.darwin_20.arm64-x86_64.tbz2 from https://packages.macports.org/glib2
--->  Attempting to fetch glib2-2.62.6_1+quartz+universal.darwin_20.arm64-x86_64.tbz2 from https://nue.de.packages.macports.org/glib2
--->  Attempting to fetch glib2-2.62.6_1+quartz+universal.darwin_20.arm64-x86_64.tbz2 from https://fra.de.packages.macports.org/glib2
--->  Fetching distfiles for glib2
--->  Verifying checksums for glib2
--->  Extracting glib2
--->  Applying patches to glib2
--->  Configuring glib2
Warning: Configuration logfiles contain indications of -Wimplicit-function-declaration; check that features were not accidentally disabled:
  isnanf: found in build-x86_64/meson-logs/meson-log.txt
--->  Building glib2
--->  Staging glib2 into destroot                        
Error: Failed to destroot glib2: glib-2.0.pc differs in /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_glib2/glib2/work/destroot-arm64//opt/local/lib/pkgconfig and /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_glib2/glib2/work/destroot-ppc-intel//opt/local/lib/pkgconfig and cannot be merged
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_glib2/glib2/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port glib2 failed