Narrow down the upgrade problem with CMUCL.

** Modify SBCL and other implementations so they provide UIOP

   independently from ASDF?

* CMUCL has bugs:

** In ASDF 2.32.13, sibling-dependencies is renamed to sideway-dependencies

   in defclass component, a superclass of system, and upgrade from

   2.32 or earlier thus fails with

   Error in function KERNEL:CLASS-TYPEP:  Class is currently invalid:

   #<KERNEL::STANDARD-CLASS ASDF/SYSTEM:SYSTEM {58398145}>

   in a direct call from ASDF/FIND-SYSTEM:LOCATE-SYSTEM,

   which suggests CMUCL's PCL fails to finalize classes properly.

** Non-default optimize settings may or may not subtly break PCL.

   For the longest time (from 2.26.136 to 3.1.0.42), ASDF had:

   (declaim (optimize (speed 1) (safety 3) (debug 3)))

   This form may or may not work around that breakage in some cases:

   (setf c::top-level-lambda-max 0)

** At some point there was massive breakage due to uninitialized slots

   as revealed in 3.1.0.37 with

   make t l=cmucl t=test-encodings.script

   which was a different PCL bug from the above (without same workaround)

   but possibly also triggered by the non-standard declaim.

* XCL has bad bugs:

  make-pathname doesn't handle :type nil properly and

  has massive lossage in logical-pathname support.

    # 1.97 (2006-05-14) is the last release before Gary King takes over

    # 1.369 (2009-10-27) is the last release by Gary King

    #

    # 2.000 to 2.019 and 2.20 to 2.26 and beyond are Faré's "stable" ASDF 2 releases

    # 2.26.61 is the last single-file, single-package ASDF.

    # 2.27 and beyond are Faré's "stable" ASDF 3 pre-releases

    #

    # 2.000 to 2.019 and 2.20 to 2.26 are Faré's "stable" ASDF 2 releases

    #   2.000 (2010-05-31) was the first ASDF 2 release

    #   2.008 (2010-09-10) was a somewhat stable ASDF 2 release

    #   2.011 (2010-11-28) was used by CLISP 2.49, Debian squeeze, Ubuntu 10.04 LTS

    #   2.014.6 (2011-04-06) was used by Quicklisp in 2011

    # 2.019 (2011-11-27) was stable

    #   2.019 (2011-11-27) was stable and used by LispWorks since 2012.

    #   2.20 (2012-01-18) was in CCL 1.8, Ubuntu 12.04 LTS

    #   2.22 (2012-06-12) was used by debian wheezy

    # 2.26 (2012-10-30) was used by Quicklisp

    #   2.26 (2012-10-30) was used by Quicklisp in 2013

    #

    # 2.26.x is where the refactoring that begat ASDF 3 took place.

    # 2.26.61 is the last single-file, single-package ASDF.

    # 2.27 to 2.33 are Faré's "stable" ASDF 3 pre-releases

    #   2.27 (2013-02-01) is the first ASDF 3 pre-release

    #   2.32 (2013-03-05) is the first really stable ASDF 3 pre-release

    #

    # The 3.0 series is a stable release of ASDF 3

    # with Robert Goldman taking over maintainership at 3.0.2.

    # 3.0.0 was 2.33.10 promoted, but version-satisfies meant it was suddenly

    # not compatible with ASDF2 anymore, so we immediately released 3.0.1

    #   3.0.1 (2013-05-16) is the first stable ASDF 3 release

    echo REQUIRE 1.85 1.97 1.369

    # git tag -l '2.0??'

    # git tag -l '2.??'

    echo 2.000 2.008 2.011 2.014.6 2.019 2.20 2.22 2.26

    echo 2.27 2.32

    git tag -l '3.0.[1-9]'

    #   3.0.2 (2013-07-02) was the first ASDF 3 in SBCL

    #   3.0.3 (2013-10-22) was the last in the ASDF 3.0 series

    #

    # The 3.1 series provides the 3.1 feature, meaning users can rely on

    # all the stabilization work done in 3.0 so far, plus extra developments

    # in UIOP, package-system, and more robustification.

    #

    # We return the above designated versions in order of decreasing relevance,

    # which pretty much means REQUIRE and most recent first.

    echo REQUIRE

    echo 3.0.3 3.0.2 3.0.1

    echo 2.32 2.27

    echo 2.26 2.22 2.20 2.019 2.014.6 2.011 2.008 2.000

    echo 1.369 1.97 1.85

}

upgrade_methods () {

    if [ -n "$ASDF_UPGRADE_TEST_METHODS" ] ; then

        # Note that for the longest time, CLISP has included 2.011 in its distribution.

        # We don't punt on upgrade anymore, so we can go at it!

        ### clisp:2.00[0-7]:*|clisp:1.*|clisp:2.0[01]*|clisp:2.2[0-5]:*) : ;;

        # Skip, CMUCL has problems before 2.014.7 due to source-registry upgrade.

        # Weird unidentified problems before 2.018, so we punt equally for everything before,

        # and only need to test it once: above, for 2.017.

        cmucl:1.*|cmucl:2.00*|cmucl:2.01[0-6]:*) : ;;

        # CMUCL has problems with 2.32 and earlier because of

        # the redefinition of system's superclass component.

        cmucl:1.*|cmucl:2.*) : ;;

        # Skip many ECL tests, for various ASDF issues

        ecl*:1.*|ecl*:2.0[01]*|ecl*:2.20:*) : ;;

        # GCL 2.7.0 from late November 2013 is required, with ASDF 3.1.1