Yes, I also run into a problem, I think make is the cause of the conflict.
Before installing, I use brew doctor to check env, this shows me the following error:
Your compilers are different from the standard versions for your Xcode. If you have Xcode 4.3 or newer, you should install the Command Line Tools for Xcode from within Xcode Download preferences. Otherwise, you should reinstall Xcode.
If you install Xcode-4.4 in advance, then install osx-GCC-4.2, this error will appear.
I am trying to reinstall Xcode-4.4, but it does not work. So I just direct the installation of the compiler from the source code.
And then ImageMagick works. But this can lead to the fact that the file storage location will have problems, it will cause some warnings if you use a brew doctor to check.
I recently tried resetting xcode-path to solve the confict problem
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
I think this might be a way to resolve make conflict.
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