Rails: Installing PG gem on OS X – failure to build native extension

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Same error for me and I didn’t experience it until I downloaded OS X 10.9 (Mavericks). Sigh, another OS upgrade headache.

Here’s how I fixed it (with homebrew):

  • Install another build of Xcode Tools (typing brew update in the terminal will prompt you to update the Xcode build tools)
  • brew update
  • brew install postgresql

After that gem install pg worked for me.

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