So far I wasn't able to build abcl release 1.5 under Linux (Ubuntu 16.04.3 which comes at this time with ant 1.9.6 and openjdk 1.8.0_131) from the distributed source [1]. The (ant) build completes (reportedly) successful even though there are errors: --8<-- [java] ; (DEFMACRO DIAG ...) [java] ; (DECLAIM (FTYPE # ...)) [java] ; (DEFUN VERIFY-LOAD ...) [java] ;SYSTEM:%MAKE-CONDITION triggers autoloading of org.armedbear.lisp.make_condition ... [java] ; Autoloaded org.armedbear.lisp.make_condition (0.001 seconds) [java] 2.081 seconds real time [java] 6753524 cons cells [java] FORMAT-ERROR: error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] #<THREAD "interpreter" {79A0B5CB}>: Debugger invoked on condition of type FORMAT-ERROR [java] error in format: [java] Maximum error depth exceeded (11 nested errors) with '#<FORMAT-ERROR {67090C23}>'. [java] CL-USER(2): abcl.compile: [echo] Compiled ABCL with Java version: 1.8.0_131 abcl.version.src.0: abcl.version.src.1: abcl.version.src.2: abcl.version.src.3: abcl.version.src: abcl.stamp.version.uptodate: abcl.stamp.version.generate: abcl.stamp.version.0: abcl.stamp.version.1: abcl.stamp.version.2: abcl.stamp.version: [echo] ABCL implementation version: 1.5.0 abcl.stamp.hostname: [echo] abcl.hostname: slab abcl.stamp: abcl.jar.uptodate: abcl.contrib: abcl-contrib.jar: abcl.jar: [jar] Building jar: /home/tho/Downloads/src/abcl-src-1.5.0/dist/abcl.jar abcl.wrapper.unix: abcl.wrapper.windows: abcl.wrapper: [copy] Copying 1 file to /home/tho/Downloads/src/abcl-src-1.5.0 [echo] Created executable ABCL wrapper in 'abcl' [echo] N.B. This wrapper requires '/home/tho/Downloads/src/abcl-src-1.5.0/dist/abcl.jar' not be moved. BUILD SUCCESSFUL -->8-- Then the executable cannot be run: --8<-- $ ./abcl Armed Bear Common Lisp 1.5.0 Java 1.8.0_131 Oracle Corporation OpenJDK 64-Bit Server VM Low-level initialization completed in 0.173 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) -->8-- Meanwhile I cloned the git repository and the HEAD as well as a branch off of commit 3e92245341ef07dd0915d1f7f59fa335626330db (release 1.5 [a tag would be nice, imho]) build and run successful, as far as I can tell. I noticed that the files in the zip archive are DOS formatted, which _shouldn't_ cause any such issue (making comparison with the files in the git repository a bit more cumbersome though). I haven't investigated further, as I got now a working abcl, but wanted to have mentioned it, as I couldn't find any hint regarding above error online. hth ~ Guenther [1] abcl-src-1.5.0.zip from https://common-lisp.net/project/armedbear/releases/1.5.0/abcl-src-1.5.0.zip