I've just git pulled the latest version of cl-python and am getting the following build error: <snip> ; compiling (YACC:DEFINE-PARSER *CL-YACC-PYTHON-PARSER* ...) ; compiling (DEFMETHOD LEXER-EOF-TOKEN ...) ; compiling (DEFMETHOD PARSE-FORM-WITH-YACC ...); compilation aborted because of fatal error: ; READ failure in COMPILE-FILE: ; SB-INT:SIMPLE-READER-PACKAGE-ERROR at 2660 (line 59, column 62) on #<SB-SYS:FD-STREAM for "file /home/jdn/work/lisp/cl-python/parser/grammar-clyacc.lisp" {1005DE4541}>: ; The symbol "YACC-EOF-SYMBOL" is not external in the YACC package. ; compilation aborted after 0:00:10.417 WARNING: COMPILE-FILE warned while performing #<COMPILE-OP NIL {1003130FA1}> on #<CL-SOURCE-FILE "grammar-clyacc" {100351D501}>. unhandled ASDF:COMPILE-FAILED in thread #<SB-THREAD:THREAD "initial thread" RUNNING {10029DDD71}>: erred while invoking #<COMPILE-OP NIL {1003130FA1}> on #<CL-SOURCE-FILE "grammar-clyacc" {100351D501}> 0: (SB-DEBUG::MAP-BACKTRACE #<CLOSURE (LAMBDA #) {1003F3F679}>)[:EXTERNAL] 1: (BACKTRACE 128 #<SYNONYM-STREAM :SYMBOL SB-SYS:*STDERR* {1000172DD1}>) 2: (SB-DEBUG::DEBUGGER-DISABLED-HOOK #<ASDF:COMPILE-FAILED {1003E2B3C1}> #<unavailable argument>) 3: (INVOKE-DEBUGGER #<ASDF:COMPILE-FAILED {1003E2B3C1}>) 4: (ERROR ASDF:COMPILE-FAILED)[:EXTERNAL] 5: ((SB-PCL::FAST-METHOD ASDF:PERFORM (ASDF:COMPILE-OP ASDF:CL-SOURCE-FILE)) </snip> Cheers, Jason