FYI - the gtk3 upgrade does ultimately proceed normally on 10.6, once the LibCxxOnOlderSystems toolchain is repaired, per the separate instructions I posted.
The problem was not with gtk specifically, but the toolchain it appears. Ken $ sudo port upgrade gtk3 ---> Computing dependencies for gtk3 ---> Fetching distfiles for gtk3 ---> Attempting to fetch gtk+-3.20.9.tar.xz from http://sea.us.distfiles.macports.org/macports/distfiles/gtk3 ---> Attempting to fetch gtk+-3.20.9.tar.xz from https://muug.ca/mirror/gnome/sources/gtk+/3.20/ ---> Verifying checksums for gtk3 ---> Extracting gtk3 ---> Applying patches to gtk3 ---> Configuring gtk3 ---> Building gtk3 ---> Staging gtk3 into destroot ---> Installing gtk3 @3.20.9_0+quartz ---> Cleaning gtk3 ---> Computing dependencies for gtk3 ---> Deactivating gtk3 @3.20.6_0+quartz ---> Cleaning gtk3 ---> Activating gtk3 @3.20.9_0+quartz ---> Cleaning gtk3 ---> Updating database of binaries ---> Scanning binaries for linking errors ---> No broken files found. _______________________________________________ macports-users mailing list macports-users@lists.macosforge.org https://lists.macosforge.org/mailman/listinfo/macports-users