warning: comparison is always true due to limited range of data type

[Gabriel Dos Reis]

Marcin 'Qrczak' Kowalczyk <qrczak@knm.org.pl> writes:

| Hello.
| 
| There was a discussion about this warning about a year ago, but it
| seems to have been forgotten without a resolution.
| 
| This warning is issued unconditionally, impossible to disable, hard
| to work around, and it depends on integer sizes even when the code
| is portable.
| 
| I think it should be removed altogether, or at least disabled by
| default, or at least possible to disable.

See -Walways-true.

-- Gaby