4.4 Suppressing warnings
Kpathsea provides a way to suppress selected usually-harmless warnings;
this is useful at large sites where most users are not administrators,
and thus the warnings are merely a source of confusion, not a help. To
do this, you set the environment variable or configuration file value
`TEX_HUSH' to a colon-separated list of values. Here are the
Suppress everything possible.
Suppress mismatched font checksum warnings.
Suppress warnings when a character is missing from a font that a
DVI or VF file tries to typeset.
Don't suppress any warnings.
Suppress warnings about attempts to access a file whose permissions
render it unreadable.
Suppresses warnings about an unimplemented or unparsable
`tex-hush.c' defines the function that checks the variable value. Each
driver implements its own checks where appropriate.
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