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clang: error: unsupported option '-fopenmp' on bundle install #298
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Describe the bug
Unable to gem install.
clang: error: unsupported option '-fopenmp'
To Reproduce
bundle
Expected behavior
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Desktop (please complete the following information):
Mac OSX
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Replies: 2 comments
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The apple provided clang compiler does not support this flag, if you use a newer version it should work:
brew install llvm libomp
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This sounds like a long-standing issue with imagemagick. It adds -fopenmp to the compile line of anything which links to it, but -fopenmp is a gcc flag, so you can only build downstream projects with gcc.
Though I'm unsure why gem would be trying to build something that links to magick, you'd need to provide more information.
As @sled says, a newer clang would help too.
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