Hi, I slime-compile-and-load-file'ed a buffer which contains an expression (load (compile "otherfile.lisp")) and the compilation of the buffer itself worked flawlessly, about which the minibuffer informed me correctly. However since I had my slime-repl buffer not in the foreground I didn't notice that the compilation of otherfile.lisp actually failed. Looking at the source for my backend (sbcl) I noticed that the swank-compile-file function in swank-sbcl.lisp returns just nil in the event of a sb-c:fatal-compiler-error condition, whereas normally the function returns true as a third value in case the compilation did not succeed. This is a problem, since compile-file-for-emacs which calls swank-compile now gets the default value nil as a third return value, which is supposed to signify success. The following patch fixes the problem, that is, a buffer with the debugger is presented to me, which is the same behavior I get when calling slime-load-file after slime-compile-file. --- swank-sbcl.lisp 7 Mar 2009 19:08:03 -0000 1.237 +++ swank-sbcl.lisp 25 Mar 2009 21:02:23 -0000 @@ -512,7 +512,7 @@ (source-cache-get input-file (file-write-date input-file)) (not (load output-file)))))) - (sb-c:fatal-compiler-error () nil))) + (sb-c:fatal-compiler-error () (value nil nil t)))) ;;;; compile-string Regards. Philipp