Unable to get cpan module DBI to work with apache and mod_perl

Question

Level 1

4 points

Unable to get cpan module DBI to work with apache and mod_perl

I was able to dig around and finally found the mod_perl lib, added that to the apache config and was able to start apache successfully.

I then updated my cpan modules for Perl 5.8.8 (ended up removing the 5.8.6 library as I had warnings of possible conflicts... putting it back didn't seem to make any difference in this issue).

So I started putting together my config for my web applications and I cannot for the life of me get it booted with using DBI successfully.

I keep getting this error:
[Mon Oct 29 12:04:39 2007] [error] Can't load '/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DBI/DBI.bundle' for module DBI: dlopen(/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DBI/DBI.bundle, 1): no suitable image found. Did find:\n\t/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DBI/DBI.bundle: no matching architecture in universal wrapper at /System/Library/Perl/5.8.8/darwin-thread-multi-2level/DynaLoader.pm line 230.\n at /Library/Perl/5.8.8/darwin-thread-multi-2level/DBI.pm line 266\nBEGIN failed--compilation aborted at /Library/Perl/5.8.8/darwin-thread-multi-2level/DBI.pm line 266.\nCompilation failed in require at /Library/WebServer/Documents/timewarner acm/lib/ACMhandler.pm line 7.\nBEGIN failed--compilation aborted at /Library/WebServer/Documents/timewarner acm/lib/ACMhandler.pm line 7.\nCompilation failed in require at (eval 3) line 3.\n

To note:
1. I have successfully loaded and used the DBI module with a regular perl script
2. I have installed, uninstalled, made by hand, etc, etc the DBI module with no errors.

Any ideas? I've used previous versions of Mac OS X successfully for my web development, but I cannot get around this. Any ideas? Thoughts?

MacBook Pro 15", Mac OS X (10.5)

Posted on Oct 30, 2007 10:27 AM

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Answer 1

Nov 1, 2007 11:18 AM in response to rwhitney

Solution is this:
You need to enable -arch x86_64 and (maybe) -arch ppc64
in the DBI build.
You'll need to do this by editing the Makefile after you run `perl Makefile.PL`
(if anyone know another way, I'd love to know too, as I find myself recompiling alot perl modules by hand now, which is a bummer)

It appears that now leopard is fully universal, as in: it can boot any mac. Because of this all apache and it's modules are compiled universal. For some reason this is causing the DynaLoader to fail loading modules that are also non-universal. By recompiling your module as universal, it will then load inside mod_perl.

I'm still looking for a way to either disable this requirement or enable CPAN to build for all architectures. It currently only builds for -arch i386 and -arch ppc.

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Answer 2

rwhitney Author

Level 1

4 points

Nov 1, 2007 11:48 AM in response to isaacfinnegan

I find one of the arch parameters, changed it and I got a different error. So I went back, added the -arch to all the proper lines, and tried again. I tried various other ways too, and I'm still getting the same error.

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Answer 3

rwhitney Author

Level 1

4 points

Nov 1, 2007 12:00 PM in response to isaacfinnegan

MY BAD! I wasn't paying attention and I was getting errors for other modules, which now that I know the answer I should be able to take care of! Thanks!

I agree though, be nice to enable that within CPAN.

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Answer 4

Nov 1, 2007 12:34 PM in response to rwhitney

I think I just figured it out:

export ARCHFLAGS='-arch i386 -arch x86_64 -arch ppc -arch ppc64'

The MakeMaker uses ARCHFLAGS to determine what to build for. It defaults to '-arch i386 -arch ppc'

Now I can use CPAN to recompile all my modules. Wish I'd known it sooner.

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Answer 5

rwhitney Author

Level 1

4 points

Nov 1, 2007 4:40 PM in response to rwhitney

BTW, if you attempt to compile Apache2::Cookie, gotta do it this way:
perl Makefile.PL --with-apache2-apxs=/usr/sbin/apxs

I had to do it manually.

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Answer 6

rwhitney Author

Level 1

4 points

Nov 1, 2007 4:47 PM in response to rwhitney

sigh I'm not sure what happened, I thought that worked and now its kicking the wrong architecture errors again. Nevermind about the Apache2::Cookie (libapre2), seems I was wrong.

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Answer 7

keath66

Level 1

0 points

Jan 20, 2008 3:56 PM in response to rwhitney

I know I'm late to this thread, but I just recently discovered the same problem and have not been able to get CPAN to compile universal binaries with the ARCHFLAGS variable set.

It appears the problem is that while Apache2 was compiled as a universal binary supporting 64 bit architectures, perl itself was built for 32 bit only (perhaps with good reason), and so there is this basic incompatibility between the two.

I gave up and rebuilt Apache from scratch with mod_perl statically compiled inside. My request is just that in a future update, Apple make some effort to see that the two provided binaries work together. Would be appreciated.

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