kpathsea: Suppressing warnings
6.4 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
possibilities:
'all'
Suppress everything possible.
'checksum'
Suppress mismatched font checksum warnings.
'lostchar'
Suppress warnings when a character is missing from a font that a
DVI or VF file tries to typeset.
'none'
Don't suppress any warnings.
'readable'
Suppress warnings about attempts to access a file whose permissions
render it unreadable.
'special'
Suppresses warnings about an unimplemented or unparsable '\special'
command.
'tex-hush.c' defines the function that checks the variable value. Each
driver implements its own checks where appropriate.