This came up in connection with an XS build. I have a module which successfully went through all the stages, and for a change I even followed the approved procedure. :-) The BuildProgram successfully produced my shared library, and Check Syntax for a test Perl script is OK. However, when I run the thing, I get an error 12 - unimplemented core routine (well, after MacPerl implodes...). This has me a bit perplexed - how do I find out what's not implemented? The linker didn't emit a peep. I checked my procedures by producing a really simple XSUB from scratch, and this works fine. Any ideas? The XS code is actually a wrapper itself, for a whole mass of straight C generated by Flex and Bison. Makefile.PL is modified to handle the separate compiles, so as to keep the Perl #defines of yacc-related stuff from mixing up with mine (the files in SQL::Statement give a rough idea of what I'm doing, sort of). The C parser code is tested as an application and works OK. I mention this because I'm sure the problem is related, although I wouldn't have expected this particular error message. Thanks for any guidance. (The only reason I know what error 12 is because I've got this great little MacErrors utility. :-) ) ***** Want to unsubscribe from this list? ***** Send mail with body "unsubscribe" to mac-perl-request@iis.ee.ethz.ch