c:\test>junk.pl8
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 6.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 7.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 10.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 11.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 15.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 15.
Global symbol "$t" requires explicit package name at C:\test\junk.pl8 line 18.
Global symbol "$t" requires explicit package name at C:\test\junk.pl8 line 19.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 23.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 24.
Global symbol "$mw" requires explicit package name at C:\test\junk.pl8 line 24.
Execution of C:\test\junk.pl8 aborted due to compilation errors.