> Francois: is the Windows version working?

No arrows for me on Windows 7.

Here is what I get (I had zero failures before [a69ad2fd]) when running the test suite however:

<verbatim>
==== textDisp-2.26 LayoutDLine, tabs, breaking chunks at tabs FAILED
==== Contents of test case:

    .t delete 1.0 end
    .t tag delete x
    .t tag configure x -tabs [list 30 60 90 120] -justify right
    .t insert 1.0
    .t mark set dummy1 1.1
    .t mark set dummy2 1.2
    .t tag add x 1.0 end
    list [lindex [.t bbox 1.2] 0] [lindex [.t bbox 1.4] 0]  [lindex [.t bbox 1.6] 0] [lindex [.t bbox 1.8] 0]

---- Result was:
48 78 108 138
---- Result should have been (exact matching):
117 124 131 138
==== textDisp-2.26 FAILED


==== textDisp-24.24 TkTextCharLayoutProc, justification and tabs FAILED
==== Contents of test case:

    .t delete 1.0 end
    .t tag configure x -justify center
    .t insert 1.0
    .t tag add x 1.0 end
    list [.t bbox 1.0] [.t bbox 1.10]

---- Result was:
{10 3 7 15} {52 18 7 15}
---- Result should have been (exact matching):
{45 3 7 15} {94 3 7 15}
==== textDisp-24.24 FAILED
</verbatim>