Mac OS X 10.6 の mach_kernel

PowerPC 捨てだけど
ppc 残ってるのはなんでだろう。（ほかのバイナリも）

% uname -v
Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~1/RELEASE_I386
% file /mach_kernel
/mach_kernel: Mach-O universal binary with 3 architectures
/mach_kernel (for architecture x86_64): Mach-O 64-bit executable x86_64
/mach_kernel (for architecture i386): Mach-O executable i386
/mach_kernel (for architecture ppc): Mach-O executable ppc

ls なぞは ppc なかったり. （bash もなくて zsh は あったり.まちまち.）

% file /bin/ls
/bin/ls: Mach-O universal binary with 2 architectures
/bin/ls (for architecture x86_64): Mach-O 64-bit executable x86_64
/bin/ls (for architecture i386): Mach-O executable i386