Commands associated with this target are executed if make
can't find any description file entries or suffix rules with which to build a
Ignore error codes. Same as the -i option.
Files you specify for this target are not removed
when you send a signal (such as interrupt) that aborts make,
or when a command line in your description file returns an error.
Execute commands but do not echo them. Same as the -s option.
Suffixes associated with this target are meaningful in suffix rules.
If no suffixes are listed, the existing list of suffix rules are
effectively “turned off.”