[macports-base] branch release-2.6 updated (abe65ba -> d2c776f)

[Joshua Root]

Joshua Root (jmroot) pushed a change to branch release-2.6
in repository macports-base.

    from abe65ba  Update Xcode versions
     new 48ec112  Always allow macports-gcc if using libstdc++
     new 76cc428  Filter archive_sites based on prefix_frozen
     new 29a9141  bump: Error out if checksums lines are missing from Portfile
     new 853273e  mportinit: Disable running unknown cmds in $SHELL
     new 12ee92f  postflight: Remove unused LOGIN_FLAG variable
     new 0e8ebd7  postflight: Support zsh
     new d2c776f  Recommend Xcode 11.1 on Catalina

The 7 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 portmgr/dmg/postflight.in           |  8 ++++++--
 src/macports1.0/macports.tcl        |  4 ++++
 src/package1.0/portarchivefetch.tcl |  4 ++--
 src/port1.0/portbump.tcl            |  2 ++
 src/port1.0/portconfigure.tcl       | 14 ++++++++------
 src/port1.0/portutil.tcl            |  4 ++--
 6 files changed, 24 insertions(+), 12 deletions(-)