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I moved a project originally coded in XCode 4.2 to XCode 4.5 and now I am getting the following warning when i build -

The compiler configuration is set to 'com.apple.compilers.llvmgcc42'. This will upgrade to 'Apple LLVM compiler 4.1', which is recommended setting for iOS targets'

I am unable to understand what versions of compilers are being referred. I searched for compiler version, but I am still confused between the terms "Apple LLVM" and "LLVM GCC". Pls help.

Tushar Koul
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1 Answers1

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Following are steps to overcome this warning

  1. Just Click on Project Target.
  2. Build Settings > Build Options.
  3. GCC_VERSION: < Select "Default compiler (Apple LLVM compiler 4.1)" or preferred one >
  4. Clean and build your app

EDIT

For your doubt about difference , I would like you to take a look at the following links.

  1. Link 1
  2. Link 2
  3. Link 3

Hope this helps.

Community
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βhargavḯ
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  • Thanks for the answer. I knew about the changes in build settings. I just want to know why I'm getting this warning. Whats the difference b/w Apple llvm and llvm gcc. And if there is other jargon I should know about. – Tushar Koul Feb 25 '13 at 07:02