Installing Yacc or Bison for Mac

I'm having trouble finding a Yacc or Bison that doesn't require using darwinports for Mac. If anyone has experience in th开发者_开发百科is category any information will be great

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If you have a working C compiler, it should be pretty trivial to build byacc.

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In case anyone skipped the comments:

yacc/bison and flex should already be installed (at least if you have installed Xcode, and without Xcode you won't even have gcc)

Thus, please check whether they exists before trying to install :)

Credits: @Chris Lutz and @Paul R