where do i get llvm-config ? (trying to build crystal)

[K Rhodes]

Trying to build crystal because i wanted to make a patch to the parser_spec.cr

I keep getting 

Makefile:19: *** Could not locate llvm-config, make sure it is installed and in your PATH.  Stop.

which is because i don't have llvm-config anywhere in my path.  I've got llvm installed, I just don't seem to have llvm-config.... Where do I get it? Or, do i have it and i need to make a symlink somewhere?

running prepare_build gives me this

~/workspace/reference/crystal/crystal  ➜ ./bin/ci prepare_build

brew install llvm libevent pcre crystal-lang

Warning: llvm-3.8.1 already installed

Warning: libevent-2.0.22 already installed

Warning: pcre-8.39 already installed

Warning: crystal-lang-0.18.7_1 already installed

Warning: You are using a pre-release version of Xcode.

You may encounter build failures or other breakages.

Please create pull-requests instead of filing issues.

[Jonne Haß]

CI adds /usr/local/opt/llvm/bin to the PATH, no idea what the proper permanent way to make it available on OS X would be. https://github.com/crystal-lang/crystal/wiki/All-required-libraries suggests brew link llvm --force.|

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[Patrik VV.]

Maybe you're missing /usr/local/bin in your PATH variable?

On my system (OSX El Capitan with Homebrew, llvm installed), it's installed under /usr/local/bin/llvm-config.

The `brew link llvm --force` might be needed, not sure though.

Regards,

Patrik

[K Rhodes]

brew link llvm --force was the correct answer. Thank you Jonne

for those curious here's where the new symlink points to: 

/usr/local/bin/llvm-config -> ../Cellar/llvm/3.8.1/bin/llvm-config

[Terry Raimondo]

brew link llvm --force

Worked for me too !