It seems to build fine, and generate the abcl.jar in the dist/ folder when I build from source.

But this error occurs when I run the generated abcl wrapper:

Armed Bear Common Lisp 1.5.0
Java 1.8.0_161 Oracle Corporation
Java HotSpot(TM) 64-Bit Server VM
Low-level initialization completed in 0.282 seconds.
org.armedbear.lisp.IntegrityError
at org.armedbear.lisp.Primitives$pf_error.execute(Primitives.java:1577)
at org.armedbear.lisp.Primitive.execute(Primitive.java:113)
at org.armedbear.lisp.Symbol.execute(Symbol.java:803)
at org.armedbear.lisp.Lisp.error(Lisp.java:383)
at org.armedbear.lisp.Load.loadSystemFile(Load.java:322)
at org.armedbear.lisp.Load$load_system_file.execute(Load.java:763)
at org.armedbear.lisp.LispThread.execute(LispThread.java:814)
at org.armedbear.lisp.Lisp.evalCall(Lisp.java:575)
at org.armedbear.lisp.Lisp.eval(Lisp.java:540)
at org.armedbear.lisp.Load.loadStream(Load.java:629)
at org.armedbear.lisp.Load.loadFileFromStream(Load.java:597)
at org.armedbear.lisp.Load.loadFileFromStream(Load.java:477)
at org.armedbear.lisp.Load.loadSystemFile(Load.java:375)
at org.armedbear.lisp.Interpreter.initializeLisp(Interpreter.java:172)
at org.armedbear.lisp.Interpreter.createDefaultInstance(Interpreter.java:102)
at org.armedbear.lisp.Main$1.run(Main.java:46)
at java.lang.Thread.run(Thread.java:748)
ERROR placeholder called with arguments:
Failed to find loadable system file 'autoloads-gen' in boot classpath.
Failed to find loadable system file 'autoloads-gen' in boot classpath.
Exception in thread "interpreter" org.armedbear.lisp.IntegrityError
at org.armedbear.lisp.Primitives$pf_error.execute(Primitives.java:1577)
at org.armedbear.lisp.Primitive.execute(Primitive.java:113)
at org.armedbear.lisp.Symbol.execute(Symbol.java:803)
at org.armedbear.lisp.Lisp.error(Lisp.java:383)
at org.armedbear.lisp.Load.loadSystemFile(Load.java:322)
at org.armedbear.lisp.Load$load_system_file.execute(Load.java:763)
at org.armedbear.lisp.LispThread.execute(LispThread.java:814)
at org.armedbear.lisp.Lisp.evalCall(Lisp.java:575)
at org.armedbear.lisp.Lisp.eval(Lisp.java:540)
at org.armedbear.lisp.Load.loadStream(Load.java:629)
at org.armedbear.lisp.Load.loadFileFromStream(Load.java:597)
at org.armedbear.lisp.Load.loadFileFromStream(Load.java:477)
at org.armedbear.lisp.Load.loadSystemFile(Load.java:375)
at org.armedbear.lisp.Interpreter.initializeLisp(Interpreter.java:172)
at org.armedbear.lisp.Interpreter.createDefaultInstance(Interpreter.java:102)
at org.armedbear.lisp.Main$1.run(Main.java:46)
at java.lang.Thread.run(Thread.java:748)

It seems to recognize the correct java to build from, but I have no idea what these integrity errors mean.