Examples of stanzas in custom configuration files

DEFLT: use=DEFLT
    options = -g
This example specifies that the -g option is to be used in all compilations.
xlc: use=xlc
options+=-qlist  
xlc_r: use=xlc_r
options+=-qlist
This example specifies that -qlist is to be used for any compilation called by the xlc and xlc_r commands. This -qlist specification overrides the default setting of -qlist specified in the system configuration file.
DEFLT: use=DEFLT
    libraries=-L/home/user/lib,-lmylib
This example specifies that all compilations should link with /home/user/lib/libmylib.a.