-fargument-alias
-fcommon
-fdefer-pop
-ffunction-cse
-fgnu-linker
-fident
-finline
-fkeep-static-consts
-fomit-frame-pointer
-fpcc-struct-return
-fpeephole
-fsched-interblock
-fsched-spec
-fthread-jumps
-fwritable-strings
-m80387
-malign-double
-march=pentiumpro
-mcpu=pentiumpro
-mfp-ret-in-387
-mhard-float
-mieee-fp
-mno-soft-float
-mschedule-prologue

