Compiler Bashing

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Compiler Bashing
by Navindra Umanee on Friday 15/Jun/2001, @17:49

Well, my personal grudge against Mandrake 8.0's compiler is that it pretty much breaks SableVM. One of the compiler bugs can be worked around by turning off GCC optimization, but the other one related to native interfaces doesn't seem trivial to work around.

This basically means that Mandrake is useless as a development platform to me, and for real work, I have to use some other platform or install a good compiler. So I'm quite happy to bash this compiler decision whenever I get the chance, and it's also quite possible I might have jumped the gun here. :)

-N.

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Re: Compiler Bashing
by me on Friday 15/Jun/2001, @22:01

while you're at it, when will we be able to post html again? seems like you can *grin*

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Re: Compiler Bashing
by Carlos Rodrigues on Sunday 17/Jun/2001, @13:56

I guess gcc 3.0 will also be useless as a development platform for you since it behaves just like gcc 2.96 relating source level compatibility. If your code breaks gcc 2.96 it will break gcc 3.0.

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Re: Compiler Bashing
by Navindra Umanee on Sunday 17/Jun/2001, @15:49

Oh yeah? And if I turn off optimization flags it will compile certain things as opposed to when I turn them on (stuff that works on the stable version)? How comforting.

Sigh. Why aren't they fixing this? And how do you know they aren't going to fix this?

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Re: Compiler Bashing
by Carlos Rodrigues on Sunday 17/Jun/2001, @16:24

2.96 probably does more optimizations to the code than the stable version.
If those problems are compiler bugs, I'm sure they will fix them (they should). But nonoptimized/optimized code problems do not always mean compiler bugs, optimizations could just show bugs in the code that otherwise go unnoticed. Don't just go ahead and say it's the compiler's fault.
I'm not saying that 2.96 that comes with RedHat is the best thing since sliced bread but it's not as bad as people say it is, I think it is rather good (for a stabilized cvs snapshot anyway, but I would also say it's better than the 2.95.x series), after all, they compiled a whole distribution with it including the kernel (and the kernel is well known to break some compilers, mostly due to kernel bugs but sometimes due to compiler bugs).

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Re: Compiler Bashing
by Navindra Umanee on Sunday 17/Jun/2001, @16:34

Instead of the hand-waving, I respectfully suggest you check out SableVM yourself and the compilation errors first hand -- try to fix them even. I gave you the link in the original comment. :-)

I don't know about Red Hat though. I'm using Mandrake 8.0 which I presume took the broken compiler from Red Hat. Because that's what they do.

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Re: Compiler Bashing
by A Sad Person on Sunday 17/Jun/2001, @15:59

Well, in my experience LM8.0 gcc is better than LM7.2 one, which would crash fequently when compiling KDE. This used to be quite frustrating - since building it takes quite long already, but of course the rewards are quite big - the KDE developers code very fast ;-)

No such problem with LM8.0 gcc - BTW, have you tried the latest builds from Cooker? Those have some additional bugfixes which may just end up relevant.

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Re: Compiler Bashing
by Navindra Umanee on Sunday 17/Jun/2001, @16:09

Hmmm, I didn't use 7.2 very long (2-3 weeks) before I upgraded to 8.0 but I didn't have any problems with the compiler, and at least it compiled SableVM so I could do my work.

Haven't checked Cooker, thanks for the tip. It's probably easier for me to go backwards to a stable platform though. :(

Cheers,
Navin.

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