Messages in this thread |  | | Date | 06 Sep 2000 10:00:00 +0200 | From | (Kai Henningsen) |
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dalecki@evision-ventures.com (Martin Dalecki) wrote on 06.09.00 in <39B58B34.100A206A@evision-ventures.com>:
> Alexander Viro wrote: > > > > On Wed, 6 Sep 2000, Martin Dalecki wrote: > > > > > Easy - the same way you do for cross compilation. Basically just: > > > > > > export CC=g++ --some-magic-long-option-i-dont-remember; make > > > > ... and you still have only a subset of the tree, simply because it is fed > > through cpp before it reaches the parser. And cpp cuts away many pieces. > > Different config options and you've got a different subset. Good luck > > providing the coverage. > > That's not quite the problem - with the exception of the boundary cases > of compleatly broken CONFIG_BLAH combinations... You have the fine > .confg file there you know... Count them n and take the n! for all the > possible config choices. Then you will see that THERE CAN'T be any > better > automatic approach then just what I have described above (ie. going > directly into the compiler) and doing the CONFIG_ handling by hand. > (I mean scripting for the most appriopriate choices...)
Rather, then you'll see that that approach is completely unviable because the n! is a fscking unbelievable labre number.
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