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Perl Language Reference Manual
by Larry Wall and others
Paperback (6"x9"), 724 pages
ISBN 9781906966027
RRP £29.95 ($39.95)

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Set to one to have perl resolve all undefined symbols when it loads a dynamic library. The default behaviour is to resolve symbols when they are used. Setting this variable is useful during testing of extensions as it ensures that you get an error on misspelled function names even if the test suite doesn't call it.

ISBN 9781906966027Perl Language Reference ManualSee the print edition