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  1. or download this
    $r = (exists $ENV{INFORMIXSQLHOSTS}) ? $ENV{INFORMIXSQLHOSTS} : 'sqlho
+st')
  2. or download this
    $r = ((exists $ENV{INFORMIXSQLHOSTS} && defined($ENV{INFORMIXSQLHOSTS}
+) && length($ENV{INFORMIXSQLHOSTS})  ) ? $ENV{INFORMIXSQLHOSTS} :  's
+qlhost'));