> On Fri, Apr 8, 2011 at 12:51 PM, Tim Lahey <tim.la...@gmail.com> wrote: >> On Fri, Apr 8, 2011 at 3:37 PM, William Stein <wst...@gmail.com> wrote: >> >> OS X comes with XCode, it's just not installed. It's just XCode 4 that >> costs $4.99. However, what happens if people install a binary gcc? > > How?
http://hpc.sourceforge.net/ > >> Does Cython work at that point? > > Surely not. > So, Cython doesn't work if you just install a binary gcc (and appropriate libraries)? >> Or are you just arguing that XCode is >> necessary because it's an easy way to a binary gcc. > > I don't know how to install GCC on OS X, except by installing XCode. > There is a lot more to GCC than "just a binary". There are lots of system > headers, development libraries, etc. It is likely illegal to > redistribute these > without Apple's permission. These come with XCode. > It depends. There are a lot of system headers that come from open source projects. Plus, Darwin (which is open source) should have everything for command line development. >> I understand why XCode isn't installed by default since the developer >> tools and documentation is several GB. Most people don't need that. >> >> I'm of the general opinion that XCode 4 being $4.99 isn't a problem. >> It's entirely possible that it will be included with 10.7, we just >> don't know. I've worked on platforms where the development tools have >> cost much more, but we still have XCode 3. For people who are only >> using the compilers, that's more than adequate since we can download >> the source for the updated compilers. >> >> To comment on the thread title, Apple hasn't forked gcc. They worked >> on developing a BSD compiler (clang) and since then, people have done >> work to use gcc as the front end and llvm as the back end. The >> Dragonegg project is the most recent work on this. Apple wanted a BSD >> compiler since they couldn't integrate the compiler into XCode on the >> level they wanted with the GCC compiler due to the GPL license. > > It would be frustrating if once Apple switches away from GCC > completely, they start charging a few hundred bucks for XCode... > Apple's LLVM compiler is open source (and has binaries for download), http://llvm.org/releases/ Right now, XCode 4 is $4.99 or free with the $99/year developer membership. At $4.99 it's effectively paying for the servers and bandwidth costs (since the download is about 4GB). I doubt Apple will charge hundreds of dollars for their development tools when they want to encourage development on their platform. I tend to believe that Apple's charging $4.99 because of their accounting rules (which is why they charge $0.99 for Facetime) and XCode 4 will be free with 10.7 (like XCode 3 was with 10.5/10.6). This is the first time Apple has had an XCode major upgrade that didn't coincide with a system upgrade. Cheers, Tim. -- Tim Lahey PhD Candidate, Systems Design Engineering University of Waterloo http://about.me/tjlahey -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
