Sorry to be late to the party again with Windows testing...
So far I'm seeing a consistent failure for every Allegro variant on Windows for test-sysdef-asdf.
Here is the error:
These two expressions fail comparison with equal:
(asdf-test::system-lisp-files :uiop) evaluates to ("uiop\package.lisp" "uiop\common-lisp.lisp" "uiop\utility.lisp" "uiop\os.lisp" "uiop\pathname.lisp" "uiop\filesystem.lisp" "uiop\stream.lisp" "uiop\image.lisp" "uiop\run-program.lisp" "uiop\lisp-build.lisp" "uiop\configuration.lisp" "uiop\backward-driver.lisp" "uiop\driver.lisp")
(asdf-test::makefile-lisp-files "driver-files") evaluates to ("uiop/package.lisp" "uiop/common-lisp.lisp" "uiop/utility.lisp" "uiop/os.lisp" "uiop/pathname.lisp" "uiop/filesystem.lisp" "uiop/stream.lisp" "uiop/image.lisp" "uiop/run-program.lisp" "uiop/lisp-build.lisp" "uiop/configuration.lisp" "uiop/backward-driver.lisp" "uiop/driver.lisp")
Script failed