I'm (finally) writing some error checking on a program. It needs to find and make sure the user can run a few programs. Now, md5 and mimencode (yes, that program) are pretty common, and they're most likely to already be in the user's PATH, but openssl isn't. I'd like to add /usr/local/openssl/bin/ to the PATH, so that it can check in that place of last resort before dieing.

I've tried the following, none of which seemed to work: (no, not all at the same time) 

$ENV{PATH} = $ENV{PATH} . ":/usr/local/openssl/bin";
use lib qw(/usr/local/openssl/bin/);
push @INC, "/usr/local/openssl/bin/";

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The next two lines are: 
chomp($openssl = `which openssl`);
die "openssl required\n" unless (-X $openssl);

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And it always die's. These attempts are based on reading the Blue Camel book, and how to add path to @INC. That node, however, is about adding a path for a module, so I'm not sure if it's appropos.

In reply to Adding a directory to $ENV{PATH} by amelinda

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