gcc question

[Steve Kieu]

Hi everyone,

I got a question, does gcc always use the correct
option -march=iX86 in the computer it is running or I
have to specify it?

eg. I use i686 machine running Linux, when compile
program I want gcc make binary optimized for i686, do
I have to specify -march=i686 or gcc will
automatically detect this and does it (unless I force
it using -march=i386 to bring this baniry to run in
other computer of course)

Thanks in advance.





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S.KIEU

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