On 22 Jul, 2013, at 3:01, Larry Hastings <la...@hastings.org> wrote:
> On 07/21/2013 04:36 PM, Raymond Hettinger wrote: >> Our current Mac OS X builds use GCC-4.2. >> >> On Python2.7, I ran a comparison of gcc-4.2.1 builds >> versus gcc-4.8.1 and found that the latter makes a much >> faster Python. PyBench2.0 shows the total running time >> dropping from 5653ms to 4571ms. The code is uniformly >> better in just about every category. >> > > I know that newer Microsoft compilers tend to drop support for older > operating systems, and often that means the binaries simply won't work on > those operating systems. (Yes, technically it's the libraries that break the > older code.) > > Are Apple's compilers the same? Or do they tend to support all the old > versions of OS X? The compiler's included with Xcode 4 cannot generate code for PowerPC machines, other than that it should be possible to generate code for older machines with the latest Xcode version. I have a Python installation on my machine that I use to generate app distributions for a 10.5 machine, and AFAIK this would also work for deploying to 10.4. The hard part is usually convincing autotools-using projects to not use APIs that are available on the build machine but not on the deployment machine. Ronald _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
