Some systems failed to build for Quicklisp dist

[quicklisp]

Building with SBCL 2.1.6 / ASDF 3.3.1 for quicklisp dist creation.

Trying to build commit id 11b965f

bmp-test fails to build because of a failure in png.

image-test fails to build because of a failure in png.

ops-test fails to build because of a failure in png.

png-test fails to build because of a failure in png.

png fails to build with the following error:

; caught ERROR:
;   READ error during COMPILE-FILE: Symbol "%ARRAY-DATA-VECTOR" not found in the SB-KERNEL package. Line: 26, Column: 50, File-Position: 1253 Stream: #<SB-INT:FORM-TRACKING-STREAM for "file /home/quicklisp/quicklisp-controller/dist/build-cache/cl-png/372e1d3889cf11ca32210874bec5b5fdf3140d61/cl-png-20210702-git/compat.lisp" {10094A4F33}>
...
Unhandled UIOP/LISP-BUILD:COMPILE-FILE-ERROR in thread #<SB-THREAD:THREAD "main thread" RUNNING {1001A18103}>: COMPILE-FILE-ERROR while compiling #<CL-SOURCE-FILE "png" "compat">

Full log here

[ljosa]

Just merged #6, did it help?