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I recently upgraded to MAC OS 10.8 but I observed the following folders in /Developer/SDKs:

  • MacOSX10.5.sdk
  • MacOSX10.6.sdk

I googled and found out that I should run sudo /Developer/Library/uninstall-devtools --mode=all. However I just forgot the --mode=all and now I still have those SDK folders but the uninstall-devtools script has gone. I also have installed XCode 4.5.2 but it seems that it does not come with any command line tool called uninstall-devtools. So how can I get rid of the old SDKs?

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The installer for Xcode 4.3 had an option for removing older versions of Xcode which removed /Developer/.

You can probably just delete the folder completely. It was possible to delete single developer folders even before Xcode 4.3. From an answer by Chris Espinosa on Stack Overflow:

If you have multiple Developer folders, you can drag any of them to the trash without damaging the others. Developer folders are completely standalone.

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