config.sub - validate and canonicalize a configuration triplet
config.sub [OPTION] CPU-MFR-OPSYS or ALIAS
Canonicalize a configuration name.
print this help, then exit
print date of last modification, then exit
print version number, then exit
Report bugs and patches to <config-patches@gnu.org>.
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This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.