We no longer trim the directory portions from the "#line " comments
in the generated C code. This helps cooperation with many editors'
auto-jump-to-error stuff. [Ross McFarland]In some cases the PERL_UNUSED_VAR macro is needed to get rid of C
compile-time warnings in generated code. Since this eliminates so
many warnings, turning on "-Wall -W" (or your platform's
equivalent) can once again be helpful. [Ross McFarland]Did a huge amount of variable-scoping cleanup, and it still
doesn't compile under 'use strict;'. Much progress was made
though, and many scoping issues were fixed.