--- origsrc/llvm-3.4.2.src/tools/clang/lib/Driver/Tools.cpp	2014-04-11 15:31:24.000000000 -0500
+++ src/llvm-3.4.2.src/tools/clang/lib/Driver/Tools.cpp	2014-08-07 14:43:01.635600000 -0500
@@ -3293,8 +3293,7 @@ void Clang::ConstructJob(Compilation &C,
   // -fuse-cxa-atexit is default.
   if (!Args.hasFlag(
            options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit,
-           getToolChain().getTriple().getOS() != llvm::Triple::Cygwin &&
-               getToolChain().getTriple().getOS() != llvm::Triple::MinGW32 &&
+           getToolChain().getTriple().getOS() != llvm::Triple::MinGW32 &&
                getToolChain().getArch() != llvm::Triple::hexagon &&
                getToolChain().getArch() != llvm::Triple::xcore) ||
       KernelOrKext)