Global symbol "$ratio0" requires explicit package name at ./warn.pl line 26.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 27.
Global symbol "$ratio0" requires explicit package name at ./warn.pl line 27.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 30.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 30.
Global symbol "$ratio0" requires explicit package name at ./warn.pl line 37.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 38.
Global symbol "$ratio0" requires explicit package name at ./warn.pl line 54.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 55.
Global symbol "$ratio0" requires explicit package name at ./warn.pl line 57.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 57.
Global symbol "$ratio0" requires explicit package name at ./warn.pl line 59.
Global symbol "$ratio1" requires explicit package name at ./warn.pl line 59.
Execution of ./warn.pl aborted due to compilation errors.