[CMake] Ensuring not building for 64-bit

[Michael Jackson]

On Aug 17, 2009, at 12:30 PM, ML wrote:

> Hi Mike,
>
>> The double __LP64__ is making sure it (__LP64__) is both DEFINED  
>> and TRUE.
>>
>> # if defined ((__APPLE__)) && defined(__LP64__) && __LP64__
>> typedef CIconHandle  OSColorIcon;  // Mac CIcon
>> #else
>
> To to help me fine tune a bit..
>
> Wouldn't (__APPLE__) be automatically defined if I am compiling on  
> OS X?
>
> Is there a place where I can see what others like __LP64__ are  
> available?
>
> -Jason
>
>

The last email will default to 32 bit i386 compiles:

echo | gcc -arch x86_64 -E -dM -

for 64 bit intel builds

Mike