Sean McBride wrote:
On 1/15/08 9:59 AM, Mike Jackson said:
In addition to what other's said, I'll just add the following:
Funny.. last time I asked I was told to use "i386 ppc" which did not
work and so I started adding the flags myself. Using a ";" instead of
a space does allow universal binaries to be produced.
CMake also supports building 4-way fat by specifying "i386;ppc;ppc64;x86_64".
Of course one has to be careful when doing this with endian specific
code. Have both PPC and i386 is basically cross compiling and trying
to determine the proper byte ordering of the target machine is prone
to errors. Just FYI for those with this type of code.
It is best to avoid any TRY_RUN if you want to build universal.
Instead, you can check endianness at compile time (the compiler knows
the endianness of the machine its building for of course). You can use
#if __BIG_ENDIAN__ (something like that).
I have added a FAQ for this here:
http://www.cmake.org/Wiki/CMake_FAQ#Platform-specific_questions
If anyone wants to add more feel free...
-Bill
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