-h, --help print this help, then exit
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-v, --verbose verbosely report processing
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-f, --force consider all files obsolete
-o, --output=FILE save output in FILE (stdout is the default)
-W, --warnings=CATEGORY report the warnings falling in CATEGORY [syntax]
`cross' cross compilation issues
`obsolete' obsolete constructs
`syntax' dubious syntactic constructs
`all' all the warnings
`no-CATEGORY' turn off the warnings on CATEGORY
`none' turn off all the warnings
`error' warnings are error
The environment variables `M4' and `WARNINGS' are honored.
-B, --prepend-include=DIR prepend directory DIR to search path
-I, --include=DIR append directory DIR to search path
-t, --trace=MACRO[:FORMAT] report the list of calls to MACRO
-i, --initialization also trace Autoconf's initialization process
In tracing mode, no configuration script is created. FORMAT defaults to `$f:$l:$n:$%'; see `autom4te --help' for information about FORMAT.
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