Re: Macro %{optflags}

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2010/9/18 Mattias Ellert <mattias.ellert@xxxxxxxxxxxx>:
> fre 2010-09-17 klockan 12:05 -0300 skrev Sergio Belkin:
>
>> I could see that by the output. As a matter of fact, I'd want to use
>> Makefile flags because optflags use things like "-mtune" ... for
>> example I'm building on a netbook and I don't like that it makes atom
>> optimizations... doesn't it make sense, does it?
>>
>> TIA
>
> $ setarch i686 rpm -E %optflags
> -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom
> -fasynchronous-unwind-tables
>
> Using -mtune=atom is the correct flag when building ix86 rpms for the
> most recent Fedora releases. The optflags are by design the same on any
> ix86 installation - they do not change depending on what hardware is
> present on the build machine. That you are building on a netbook does
> not influence what %optflags is expanded into.
>
>        Mattias
>
>

Mmm... Now I am a bit confused. So... Isn't  "-mtune" an optimization
flag for a specific target arch. ?


Please correct me if I'am wrong :)
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