Some option flags are macros that expand into a specific set of other flags. These are provided as a convenient way to specify a number of options that are usually expressed together to select a certain feature.
Table 3–5 Macro Option Flags
Option Flag |
Expansion |
---|---|
-dalign |
-xmemalign=8s -aligncommon=16 |
-f |
-aligncommon=16 |
-fast |
See description of —fast for complete current expansion. |
-fnonstd |
-fns -ftrap=common |
-xia=widestneed |
-xinterval=widestneed -ftrap=%none -fns=no -fsimple=0 |
-xia=strict |
-xinterval=strict -ftrap=%none -fns=no -fsimple=0 |
-xtarget |
-xarch=a -xcache=b -xchip=c |
Settings that follow the macro flag on the command line override or add to the the expansion of the macro.