foomatic-configure producing weird perl warnings

Question

I am using CentOS 6.4 and trying to use the 'foomatic-configure' for print information and am receiving some weird errors:

Perl: v5.10.1

foomatic: foomatic-4.0.4-1.el6_1.1.i686

Command line:

foomatic-configure -r -P -q

Produces these warnings:

Use of uninitialized value $manufacturer in string eq at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 354.
Use of uninitialized value $model in string eq at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 355.
Use of uninitialized value in split at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 2147.
Use of uninitialized value $d in hash element at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1143.
Use of uninitialized value in regexp compilation at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1146.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1146.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1189.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1191.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1193.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1195.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1197.
Use of uninitialized value in pattern match (m//) at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1199.
Use of uninitialized value in hash element at /usr/share/perl5/vendor_perl/Foomatic/DB.pm line 1249.

Yukk, what is up with that???

I do receive the perl hash for $QUEUES[0] with the correct data, but could do without the error messages....

UPDATE:

Looks as though I can suppress these messages using the following:

foomatic-configure -P -q -r 2>/dev/null

Shouldn't have to do that though....

Answer 1

First two warnings appear in the function guessmake() of Foomatic::DB. Looking at the code path, $manufacturer and $model are always undefined, so doing an eq comparison does not make sense here, but are harmless here except for the noise. I did not look at the other warnings.

The easist to "fix" this is to remove the -w option from foomatic-configure's shebang, so all warnings are disabled. But better to write a bug report to the maintainers.