Linked by Thom Holwerda on Wed 7th Nov 2012 23:50 UTC, submitted by Joel Dahl
"I've made clang the default on x86 systems. There will probably be a few bumps as we work out the last kinks including a ABI issue for i386 system libraries, but the transition is expected to be fairly smooth for most users."
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Member since:2007-07-20
clang is really very good compiler, though I think you're right - its a licensing issue, at the moment I wouldn't say clang is a better compiler.
For C, they both do well, for C++, clang is still not 100%.
And on both C/C++ clang misses OpenMP, which may be a big deal if you're using that a lot.
I do benchmarks once in a while and for me - (testing cycles-raytracer), clang is still slower then gcc (5-10%), and has been for over a year.
IMHO the advantage is more with is ability to integrate with IDE's and be used as a library. - clang/python for example is pretty nice, though focused on IDE's rather then giving you access to all info.
Member since:2005-08-10
Member since:2008-04-10
I agree. Clang provides fantastically clear error messages, expecially when you use templates. But the lack of support for OpenMP is a severe impediment for those like me that do HPC (I am working in a large astrophysical project, and our codes run on machines with 12 cores at least and take hours/days to complete!).
By the way, this is the reason why I removed Mac OS X from my Macbook and replaced it with Ubuntu: to have a reasonably updated version of gcc instead of the very old one bundled with Lion.
Member since:2007-02-18
Member since:2007-07-20
Sure, but all things equal - why would you switch if clang misses OpenMP and can't compile some C++ apps (inkscape for example fails, and some areas need non-trivial re-working to make it compatible).
Still, hopefully being default in BSD gives some incentive for clang to become as complete as GCC.
Member since:2009-01-09
To me It always smelled like a political decision and not a technical one... Apple wanted a BSD-licensed compiler and not a GPL one so they spent zillons of dollars creating a new one and alienating the open source community.
You think Apple is the only organization that doesn't want a GPL licensed compiler? Stop & ask yourself why a (Free|Net|Open|Dragonfly|PC)-BSD based OS wouldn't want a BSD licensed compiler. Those guys don't just use BSD-licensed software on a whim. They believe in that model of software licensing & I highly doubt that they'd want to be at the mercy of the GPL license model --which changes on a whim, the same way that GPL code changes on a whim.
Member since:2006-01-14
"To me It always smelled like a political decision and not a technical one... Apple wanted a BSD-licensed compiler and not a GPL one so they spent zillons of dollars creating a new one and alienating the open source community.
You think Apple is the only organization that doesn't want a GPL licensed compiler? Stop & ask yourself why a (Free|Net|Open|Dragonfly|PC)-BSD based OS wouldn't want a BSD licensed compiler. Those guys don't just use BSD-licensed software on a whim. They believe in that model of software licensing & I highly doubt that they'd want to be at the mercy of the GPL license model --which changes on a whim, the same way that GPL code changes on a whim. "
The only real reason for GPLv3 is software patents, which didn't exist when the GPL was first conceived. You can't really blame them for having to update it.
Member since:2009-08-18
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Member since:
2005-07-06
I'm not a compiler expert, I'm only a GCC and FreeBSD user, so from a practical point of view... why do you consider Clang so awesome?
To me It always smelled like a political decision and not a technical one... Apple wanted a BSD-licensed compiler and not a GPL one so they spent zillons of dollars creating a new one and alienating the open source community.
But maybe I'm wrong and there are technical reasons to have Clang and dismiss good old GCC...