OpenVMS configuration update

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73420 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Derive wxCheckListBox from wxCheckListBoxBase in wxGTK.

This ensures that any methods defined in wxCheckListBoxBase will be available
in wxGTK wxCheckListBox too.

See #14969.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73421 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add wxCheckListBox::GetCheckedItems() helper.

This method is similar to wxListBox::GetSelections() and allows to retrieve
all checked items at once.

Closes #14969.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73422 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add wxAUI_TB_PLAIN_BACKGROUND wxAuiToolBar style.

This style allows to use a plain, solid colour, background instead of the
default gradient one.

Closes #10585.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73423 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
No changes, just remove unused variable in wxCarbon code.

Closes #14989.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73424 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775