* Re: [gentoo-dev] flag-o-matic eclass strip-unsupported-flags function
@ 2003-08-05 20:30 99% ` Martin Schlemmer
0 siblings, 0 replies; 1+ results
From: Martin Schlemmer @ 2003-08-05 20:30 UTC (permalink / raw
To: Douglas Russell; +Cc: Gentoo-Dev
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On Tue, 2003-08-05 at 17:59, Douglas Russell wrote:
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> While fixing a bug it came to my attention that when an ebuild may wish to
> strip off CFLAGS known not to work, it will have to either strip off
> unnecessarily large amounts of optimisations or run the risk of being
> incompatible with different versions of gcc.
>
> For example, if removing -finline-functions from -O3, the optimal result with
> gcc 3 or greater is -O2 -frename-functions. However, gcc versions less than 3
> have no -frename-functions and will hence fail. Either dropping all the way
> down to -O2 unnecessarily on some systems or some conditional statements are
> required. The latter is obviously desirable to maximise optimisations.
>
> Rather than have conditional statements for every possible connotation of gcc
> in the ebuild however, I have written this addition to the flag-o-matic
> eclass which basically queries gcc for each of the used optimisations and
> strips the unsupported ones.
>
> Attached is a patch for the flag-o-matic eclass. Any feedback or suggestions
> would be appreciated.
>
What about:
CFLAGS="-O3 -fno-inline-functions"
rather ? =)
Cheers,
--
Martin Schlemmer
Gentoo Linux Developer, Desktop/System Team Developer
Cape Town, South Africa
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