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I couldn't find anything in the search so here this goes: I am looking to build an XCode Mac OS X app, and it is required to be compatible with XCode 2.5, which is for OS X 10.4. I have an OS X 10.11.3 with a XCode 7.3.1.

I tried downloading XCode 2.5 and installing it, but the setup said I needed to have OS X 10.4 to install. When running XCode 7.3.1 on the OS X 10.11.3, I can get the compiler settings to compile and run with the minimum deploy OS X version as 10.4, but I am not sure how to convert the project to XCode 2.5.

I was thinking about running VMWare or something, but I'm not really sure how to get a 10.4 Mac OS X image. Can someone help me figure out what I can do? Would I have to compile projects manually through an older version of compilers? Thanks guys!

Michael Shum
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  • Is your requirement that it must run on a 10.4 machine, or do you need to upgrade from Xcode 2.5 to Xcode 7/8 and have in running on the latest macOS version? – Jens Peter Nov 29 '16 at 09:44
  • Yes, my requirement is that it must run on the 10.4 machine. I don't need to upgrade XCode, as I have 7.3 but need 2.5. It's more like downgrading. Kind of weird. I'm hoping to get some clarification soon. – Michael Shum Nov 30 '16 at 02:20
  • Just a note on the VMWare idea: only 10.6 Server (Snow Leopard) and above can be run in a virtual environment. Lower versions won't install - some kind of licensing thing from what I gather. – Jay Versluis Nov 30 '16 at 05:46

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You don't need Xcode 2.5 to build binaries for 10.4. What you need is:

  • The Mac OS X 10.4 SDK
  • A compatible compiler: GCC 4.0 is recommended, but GCC 4.2 works as well. Things get a bit more complicated if you need C++11 support as well.

A solution is to install the compilers and SDKs you need using the XcodeLegacy script. It extracts these from older Xcode distributions.

You should then be able to select the older Mac OS X SDK and compiler in the Xcode version you have installed. Read carefully the XcodeLegacy documentation.

Frédéric Devernay
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