undefined subroutine &AutoLoader::AUTOLOAD

[devel-chm]

The current git of OpenGL::GLUT now builds and passes tests which closes issue #1. However, when I try to run the example program, I get the following error:

perl -Mblib menutest.pl
Goto undefined subroutine &AutoLoader::AUTOLOAD at /cygdrive/e/chm/pogl/pogl-split/GLUT/OpenGL-GLUT/blib/lib/OpenGL/GLUT.pm line 435.

[wchristian]

You never actually use Autoloader in GLUT.pm.

[devel-chm]

I tried a number of combinations with no luck. The issue #2 is just opened on the vanilla result of the fix from issue #1. Fixes welcome!

[devel-chm]

When I add 'use AutoLoader;' at the top, the error becomes:

perl -Mblib menutest.pl
Can't locate auto/OpenGL/GLUT/constant.al in @inc (@inc contains: /cygdrive/c/Perl/git/OpenGL-GLUT/blib/arch /cygdrive/c/Perl/git/OpenGL-GLUT/blib/lib /cygdrive/c/Perl/local64/lib/perl5/cygwin-thread-multi /cygdrive/c/Perl/local64/lib/perl5 /usr/lib/perl5/site_perl/5.22/x86_64-cygwin-threads /usr/lib/perl5/site_perl/5.22 /usr/lib/perl5/vendor_perl/5.22/x86_64-cygwin-threads /usr/lib/perl5/vendor_perl/5.22 /usr/lib/perl5/5.22/x86_64-cygwin-threads /usr/lib/perl5/5.22 .) at menutest.pl line 4.

I had a thought the problem might be the namespace for the XS constant routine but I don't know enough about AutoLoader to debug further. Probably won't have significant time until next weekend but would really like to get OpenGL::GLUT released.

If you use OpenGL for GLUT/FreeGLUT, I would appreciate help with fix and confirming that it works ok.

[wchristian]

I can't really provide a fix since i'm not sure what the code is supposed to be doing. Adding Devel::Confess results in this stacktrace:

d:\cpan\OpenGL-GLUT>prove -b menutest.pl
menutest.pl .. Can't locate auto/OpenGL/GLUT/constant.al in @INC (@INC contains: D:\cpan\OpenGL-GLUT\blib\lib D:\cpan\OpenGL-GLUT\blib\arch C:/strawberry/perl/site/lib/MSWin32-x86-multi-thread-64int C:/strawberry/perl/site/lib C:/strawberry/perl/vendor/lib C:/strawberry/perl/lib .) at C:/strawberry/perl/lib/AutoLoader.pm line 54.
        AutoLoader::autoload_sub("OpenGL::GLUT::constant") called at C:/strawberry/perl/lib/AutoLoader.pm line 23
        AutoLoader::AUTOLOAD("glutInit", 0) called at D:\cpan\OpenGL-GLUT\blib\lib/OpenGL/GLUT.pm line 440
        OpenGL::GLUT::AUTOLOAD() called at menutest.pl line 5
menutest.pl .. Dubious, test returned 255 (wstat 65280, 0xff00)

You maybe want to remove this altogether: https://github.com/devel-chm/OpenGL-GLUT/blob/master/lib/OpenGL/GLUT.pm#L427-L436

[wchristian]

Also looking at Sysiphus' commit, it doesn't look like much of a fix. His patch just disabled the XS parts entirely, but i'm sure you still want XS functions to be loaded?

[devel-chm]

I found the problem. Calling XS loading twice for the same module.

[devel-chm]

Fix looks good. Let me know if you can use OpenGL::GLUT in place of OpenGL qw(:glutfunctions :glutconstants);

[wchristian]

Haven't tried that yet, but i can confirm menutest.pl works here too.

I'll do some work on another task first (reintegrating the old git history without performing a force push), then i'll try and make test.pl work with this module.

[wchristian]

Works fine in Perl-GPU/OpenGL-Modern#41

[devel-chm]

Great! Maybe we should put the functions used in test.pl at the top of the OpenGL::Modern priority list so we can finish this update.