Creating Universal Binaries with XCode Tools
The XCode tools install the gcc compiler, which seems to be the C/C++ compiler that is used on the Mac. Is there a way to make this compiler and associated tool chain produce universal binaries? I know from past Linux experience that gcc has a gazillion options. Before I start digging into them, I was wondering whether anyone could point me at a simple reference that would explain how to use these tools to create universal binaries.
In this case, I am just building ncurses-based Terminal.app applications, but I would like them to be compatible with both PPC and Intel Macs. Thanks.
This one talks about Aspyr doing the move over (for like Sims 2 and Doom 3 etc)
This one tells the steps you need to do to prepare for universal binaries
on the bottom of the last link it tells you "For more information".. and has 3 links or so.
Hope that it is useful for you.
Scanning over it seems the major factor is that bytes and variable handling are of different sizes depending on architexture.
Boolean is 1 byte on x86 machines, 4 bytes on PPC
A long double is 16 bytes on both architectures, but only 80 bits are significant in long double data types on Intel-based Macintosh computers.
there's just a ton of really simple yet potentially tedius tweaks, and from what I scanned over it appears that when your code is universal binary ready, you'll know just simply after compiling on a universal binary-compatible machine by going to get info and looking at the application's type.
Be sure you're using the latest compiler too. :P
Sounds like gcc 4.0 builds universal binaries by default. I will have to check into this I guess. Thanks for the pointers!
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