[Ltib] Ltibutils.pm: test for zlib installation

[Sale, Devin M]

Hello,

In Ltibutils.pm there's a routine to check for the existence of libz.so* in a 
list of paths:

    zlib         => sub { my @f = (glob('/usr/lib/libz.so*'),
                                   glob('/lib/libz.so*'),
                                   glob('/lib64/libz.so*'),
                                   glob('/usr/lib/i386-linux-gnu/libz.so*'),
                                   glob('/usr/lib32/libz.so*'),
                                   glob('/usr/lib/x86_64-linux-gnu/libz.so*') 
); @f > 1 ? 1 : 0 },

Shouldn't the check be
                                   glob('/usr/lib/x86_64-linux-gnu/libz.so*') 
); @f > 0 ? 1 : 0 },

Since only one instance of libz is required.

Devin
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