和基于GPL授权的单一编译器GCC不同的是，LLVM工具族更为模块化。而且得益于更为宽松的BSD授权，LLVM可以嵌入在商业工具中。

Unlike GCC, which is a monolithic compiler released under the GPL, the LLVM family of tools are more modular - and thanks to a more permissive BSD license, can be embedded in commercial tools.

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