view release on metacpan or  search on metacpan

xt/warnings-transitions.pl  view on Meta::CPAN

=item *

Remove the hyphen (C<->) between the open bracket (C<\[>) and the upper-case
'W' (C<W>) in the warnings category.

=back

Hence, a warning which appears in captured F<make> output like this:

    Opcode.xs: In function ‘XS_Opcode_invert_opset’:
    Opcode.xs:363:25: warning: overflow in implicit constant conversion [-Woverflow]
      bitmap[opset_len-1] &= ~(0xFF << (PL_maxo & 0x07));
                             ^

... will be called on the command-line like this:

    --pattern_sought="Opcode.xs:_:_: warning: overflow in implicit constant conversion [Woverflow]"

If this switch is called, a value must be provided.  But if the switch is not
called, the program will simply avoid running the code which uses the value.

Note:  If the pattern contains any single-quote mark (C<'>) or similar