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问题描述
我需要知道是否我的libjpeg编译为32位或64位架构，但不知道怎么找出来，是有一个命令，让我检查？
I need to know whether I compiled libjpeg for 32 or 64 bits architecture, but don't know how to find out, is there a command that will let me check?
推荐答案
只需键入'文件libjpeg.dylib'，你会得到输出类似如下
just type 'file libjpeg.dylib' and you'll get output like the following
libpoll.dylib: Mach-O universal binary with 3 architectures
libpoll.dylib (for architecture x86_64): Mach-O 64-bit dynamically linked shared library x86_64
libpoll.dylib (for architecture i386): Mach-O dynamically linked shared library i386
libpoll.dylib (for architecture ppc7400): Mach-O dynamically linked shared library ppc
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