A lot of warnings are being added (and more will come) so it makes sense
to be able to disable them in legacy source that generates warnings but
is otherwise correct.
Signed-off-by: AntonioND <antonio_nd@outlook.com>
This function produces a similar output to the other error handlers, including printing to stderr, and including a stack trace. However, ‘warning’ is displayed instead of ‘ERROR’, and the compilation does not fail.
This function is now used for the deprecation warnings, ensuring that these errors can be found.
Merging lai's source with this one is very irritating because
they have different indentation styles. I couldn't find what profile
vegard used for his version, so I used these flags (which should bring
the source close to KNF):
-bap
-br
-ce
-ci4
-cli0
-d0
-di0
-i8
-ip
-l79
-nbc
-ncdb
-ndj
-ei
-nfc1
-nlp
-npcs
-psl
-sc
-sob
