Should I turn on "Generate Debug Symbols" in Xcode for release configuration? When it and "Link T开发者_Python百科ime Optimization" are turned on Xcode show warning:

GenerateDSYMFile build/Release/cocoa_tutorial5.app.dSYM build/Release/cocoa_tutorial5.app/Contents/MacOS/cocoa_tutorial5 cd /Users/ariel/Documents/spacesimulator.net/cocoa_tutorial5 /Developer/usr/bin/dsymutil /Users/ariel/Documents/spacesimulator.net/cocoa_tutorial5/build/Release/cocoa_tutorial5.app/Contents/MacOS/cocoa_tutorial5 -o /Users/ariel/Documents/spacesimulator.net/cocoa_tutorial5/build/Release/cocoa_tutorial5.app.dSYM

warning: no debug symbols in executable (-arch ppc7400)

Link time optimization and debug information do not currently work together (as of Xcode 3.2, the debug symbols are stripped before they even reach the final executable) in LLVM.

UPDATED

Link time optimization and debug information (DWARF or DWARF with dSYM files) work together in Xcode 5 or later.