Re: "-arch i386" -- Still useful?
Re: "-arch i386" -- Still useful?
- Subject: Re: "-arch i386" -- Still useful?
- From: Nick Zitzmann <email@hidden>
- Date: Thu, 6 May 2010 14:26:29 -0600
On May 6, 2010, at 1:36 PM, Patrick M. Rutkowski wrote:
> Is the "-arch i386" argument to gcc (for building for i386 as opposed
> to x86_64). My fairly new iMac, for example, seems to be x86_64. Are
> there any intel macs which really are i386, and could not run x86_64
> binaries?
Yes. Specifically, every Intel Mac still running Tiger*, as well as every Intel Mac that used the original Core Solo/Duo CPU, such as the first edition MacBook Pro. I also can't recommend targeting 64-bit Leopard unless you really know what you're doing, since the 64-bit frameworks in Leopard had some interesting bugs that weren't fixed until Snow Leopard came out...
* Tiger's 64-bit support was limited to programs that only used the standard C and C++ libraries.
Nick Zitzmann
<http://www.chronosnet.com/>
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