On 8 April 2011 21:17, William Stein <wst...@gmail.com> wrote: > On Fri, Apr 8, 2011 at 12:51 PM, Tim Lahey <tim.la...@gmail.com> wrote:
>> 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. > William Stein In which case, it does seem you need Xcode - I would agree. Is there any way we can easily detect the presence of Xcode? Would a system without Xcode have /usr/include/math.h and/or /usr/lib/libm.* ? If so, we could check this is the prereq script. I recently added a test for the maths library. It would be nice to know what version of Xcode is needed. That should be documented in the installation guide. Like Tim, I don't really have a problem with Apple charging $4.99. Development tools for other UNIX platform do tend to cost a *lot* more - at least a couple of order of magnitude more. At the end of the day, someone choses to buy an Apple which is a commercial UNIX system. I know some will say some people can't afford $4.99, but people on that sort of budget will probably buy a modestly priced x86 PC and not an Apple. Yes, Apple could start charging a lot for the development tools, as Sun used to, and IBM and HP still do. That's a chance you take using a commerical operating system. (It must however be said that both HP-UX and AIX come with the system headers and libraries, so one can install GCC from a binary. One only has to pay for the HP or IBM compilers. If one wants GCC a binary can be installed free.). Dave -- 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
