It is typically used to add extra directories to perl's search path so
that later use
or require
statements will find modules which are
not located on perl's default search path.
use lib
are added to the start of the perl search
path. Saying
is almost the same as saying
For each directory in LIST (called $dir here) the lib module also checks to see if a directory called $dir/$archname/auto exists. If so the $dir/$archname directory is assumed to be a corresponding architecture specific directory and is added to @INC in front of $dir.
If LIST includes both $dir and $dir/$archname then $dir/$archname will be added to @INC twice (if $dir/$archname/auto exists).
By default the no lib
statement deletes the first instance of
each named directory from @INC. To delete multiple instances of the
same name from @INC you can specify the name multiple times.
To delete all instances of all the specified names from @INC you can
specify ':ALL' as the first parameter of no lib
. For example:
For each directory in LIST (called $dir here) the lib module also checks to see if a directory called $dir/$archname/auto exists. If so the $dir/$archname directory is assumed to be a corresponding architecture specific directory and is also deleted from @INC.
If LIST includes both $dir and $dir/$archname then $dir/$archname will be deleted from @INC twice (if $dir/$archname/auto exists).
@lib::ORIG_INC
. To restore @INC to that value you
can say