as.info: Z

Go backward to W
Go up to Invoking
Go to the top op as

Generate Object File in Spite of Errors: `-Z'

   After an error message, `as' normally produces no output.  If for
some reason you are interested in object file output even after `as'
gives an error message on your program, use the `-Z' option.  If there
are any errors, `as' continues anyways, and writes an object file after
a final warning message of the form `N errors, M warnings, generating
bad object file.'