Comment 1 for bug 1299858

My test system is OS X 10.8.5 built with clang "Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)", and QEMU works fine there, which suggests a problem either with that version of GCC or that version of MacOSX.

You might try building with clang rather than gcc; otherwise since I don't have a system to reproduce on (or indeed much interest in tracking down bugs in old versions of MacOS, to be honest) I'm afraid you'll have to investigate this bug yourself if you want a fix for it.