Brethern,

Thanks for the helpful replies. It took me a little while to interpret some of it correctly, so I herein post my trouble for anybody else who is trying to do the same.

The -I suggestion was very helpful, but I was not having any joy trying to give it two directories to add to @INC. The Camel doc told me that it was preferable to use lib in the script instead of -I in the call to Perl. Did that. I am editing Grapher.pm in the Module::Dependency CPAN module. I have it sitting in /home/throop/perl/Module-Dependency-1.86/lib/Module/Dependency/Grapher.pm Naively, I entered the code:

use lib qw(/home/throop/perl/Module-Dependency-1.86/lib/Module/Depende
+ncy);
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which didn't work. The Module/Dependency in the string was the culprit. Perl went looking for /home/throop/perl/Module-Dependency-1.86/lib/Module/Dependency/Module/Dependency/Grapher.pm, didn't find it, quit. What worked was

use lib qw(/home/throop/perl/Module-Dependency-1.86/lib);
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letting Perl transmogrify Module::Dependency::Grapher into Module/Dependency/Grapher.pm

As for the wisdom of modifying CPAN module code — point taken. I wrote the maintainer with some queries and he noted that the particular section of the code that I need hasn't received much loving for a long time; asked me to update it. I may do that; I'm having discussions with my employer. I know about forgiveness and permission but I'm wish to be careful and scrupulous.

throop