Bug #64240 for Module-Build-WithXSpp: M::B::WithXSpp modules are hard to debug

Sun Dec 26 12:52:39 2010 shmuelfomberg [...] gmail.com - Ticket created

While trying to create a module using this module, I got the following error: Multiple definition of ctype 'Animal *' in TYPEMAP section at C:/strawberry/perl/site/lib/Module/Build/WithXSpp.pm line 267 Well, in this case, I don't really care where in your code this error is reported. I care for where in my files the error is. Thanks. Shmuel Fomberg.

Sun Dec 26 14:21:48 2010 smueller [...] cpan.org - Severity Unimportant changed to Normal

Sun Dec 26 14:21:48 2010 smueller [...] cpan.org - Correspondence added

Subject:

Indeed, it's hard to debug

Hi Shmuel, I've added a sort of generic title to the ticket since there's quite a few things about the module that make debugging a bit harder than it should be and bumped the severity a bit. It's clearly an important issue. I'll add it to the ever growing todo list to take a look. Best regards, Steffen

Sun Dec 26 14:21:48 2010 The RT System itself - Status changed from 'new' to 'open'

Sun Dec 26 14:21:48 2010 smueller [...] cpan.org - Subject changed from (no value) to 'M::B::WithXSpp modules are hard to debug'

Mon Dec 27 17:21:44 2010 shmuelfomberg [...] gmail.com - Correspondence added

I've investigated this specific problem a bit, and it seen that this line: __PACKAGE__->add_property( 'extra_xs_dirs' => [qw(. xs XS xsp XSP)] ); causes the find_map_files function to return duplicate files: one 'xsp\\mytype.map' and one 'XSP\\mytype.map'. this is on Windows, so both XSP and xsp point to the same folder. Is it possible to overcome this?

Tue Dec 28 11:31:36 2010 smueller [...] cpan.org - Correspondence added

On Mon Dec 27 17:21:44 2010, SEMUELF wrote: Show quoted text

> I've investigated this specific problem a bit, and it seen that this line: > __PACKAGE__->add_property( 'extra_xs_dirs' => [qw(. xs XS xsp > XSP)] ); > > causes the find_map_files function to return duplicate files: one > 'xsp\\mytype.map' and one 'XSP\\mytype.map'. > this is on Windows, so both XSP and xsp point to the same folder. > > Is it possible to overcome this?

Thanks for diagnosing this! I just committed a very sad workaround (disambiguate based on content) to github. Can you try the current version from https://github.com/tsee/module-build-withxspp and let me know if that fixes you problem? Best regards, Steffen

Wed Dec 29 17:30:10 2010 shmuelfomberg [...] gmail.com - Correspondence added

thanks Steffen, this version works. see you in the next bug... (hehe) Shmuel.

Fri Dec 31 08:15:17 2010 smueller [...] cpan.org - Correspondence added

On Wed Dec 29 17:30:10 2010, SEMUELF wrote: Show quoted text

> thanks Steffen, this version works. > see you in the next bug... (hehe)

Hi Shmuel, I'll keep the bug report open despite the workaround for your particular issue. It is still the case that XS++ based modules can be hard to debug when it comes to typemap issues. Cheers, Steffen