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@eparreno
Created February 16, 2012 15:17
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Install libmagic on Mac OS X via homebrew
$ brew install libmagic
$ brew link libmagic (if the link is already created is going to fail, don't worry about that)
$ env ARCHFLAGS="-arch x86_64" gem install ruby-filemagic -- --with-magic-include=/usr/local/include --with-magic-lib=/usr/local/lib/
@mane-sandeep
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+1

@jdieg0
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jdieg0 commented Aug 7, 2019

Perfect. Thanks! brew install libmagic did it.

@amirasaran
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Awesome thanks.

@tatarurzvn
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Thank you 🌮 Saved my day

@Shellbye
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Work like a charm

@sksankarraj
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Thanks man!

@d-kahara
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d-kahara commented Jun 5, 2020

Thanks!! 👍🏾

@chuaweijie
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Thank you very much!

@remino
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remino commented Jul 14, 2021

On macOS Big Sur 11.4, I had to do the following instead of the last line above:

gem install ruby-filemagic -v '0.7.2' --source 'https://rubygems.org/' -- --with-magic-include=/opt/homebrew/include --with-magic-lib=/opt/homebrew/lib/

@uvaist1997
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thanks

@kwilczynski
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If folks that come here have issues with the also excellent ruby-filemagic Ruby Gem, there exists ruby-magic Ruby Gem too, which has a bit more active development.

One can install it as a pre-built (native) Ruby Gem or as usual, in which case it should use bundled libmagic (as an alternative for requiring a system-wide or external one present).

@josefpolach
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gem install ruby-filemagic -v '0.7.2' --source 'https://rubygems.org/' -- --with-magic-include=/opt/homebrew/include --with-magic-lib=/opt/homebrew/lib/

This worked for me, but did not solved the problem.

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