如何将在64位Mac OSX上开发的mac osx应用编译为在32位上运行? [英] How do I compile mac osx app developed on 64 bit Mac OSX to run on 32 bit?

问题描述

我正在用Objective C/C ++在mac osx美洲狮10.8中编写一个程序.机器是64位的. 我是Mac新手，来自Windows .Net开发和C/C ++

I am writing a program in mac osx mountain lion 10.8 in Objective C/C++ . The machine is 64 bit. I am new to mac world coming from windows .Net development and C/C++

目标: 该程序必须与平台10.5 mac osx Leopard兼容，并且从32bit/64bit开始兼容. 目标是为10.5-10.8 32bit/64bit提供单一安装程序/发行版

GOAL: The program has to be compatible with platoform 10.5 mac osx Leopard and onwards both 32bit/64bit. And the goal is to have single installer/release for 10.5 - 10.8 32bit/64bit

我的理解是(可能是我错了，请纠正我)，如果我在10.8 Lion 64位上进行编译，则该程序将不会在10.5 32位版本上运行，但可能会在10.5 64位上运行(当然，我必须对其进行测试.

My understanding is (May be I am wrong , please correct me) that If I compile it on 10.8 Lion 64 bit the program will not run on for example on a 10.5 32-bit versions but may run on 10.5 64 bit (ofcourse I have to test it).

考虑到我的平台10.8 64位，我可以使xcode编译32bit/64bit的应用程序并发布一个版本而不是两个版本吗?

Given my platform 10.8 64 bit can I make xcode compile the app for 32bit/64bit and have one release rather than two variations ?

在linux/windows上，如果我编译32位程序，它也将在64位平台上运行，但是相反，我不确定xcode/mac如何实现我的目的.

On linux/windows if I compile a 32bit program it will run on 64 bit platforms too, but not the other way around I am not sure how xcode/mac can achieve my purpose.

推荐答案

将基本SDK设置为Mac的当前版本(例如10.7) 将Deployment SDK设置为旧版本(例如1.4版)

Set the Base SDK to Current version of Mac (ex. 10.7) Set the Deployment SDK to older version (ex.1.4)

将部署目标更改为:

Change Deployment target as :

将基本SDK更改为:

Change Base SDK as:

在此之上，您将找到体系结构，可以根据需要将其更改为32或64

Just above this you will find architectures, you can change them to 32 or 64 as your need

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