--- origsrc/llvm-3.4.2.src/tools/clang/lib/Sema/TargetAttributesSema.cpp	2013-10-01 09:34:25.000000000 -0500
+++ src/llvm-3.4.2.src/tools/clang/lib/Sema/TargetAttributesSema.cpp	2014-07-18 00:02:50.234889300 -0500
@@ -257,6 +257,7 @@ namespace {
                               const AttributeList &Attr, Sema &S) const {
       const llvm::Triple &Triple(S.Context.getTargetInfo().getTriple());
       if (Triple.getOS() == llvm::Triple::Win32 ||
+          Triple.getOS() == llvm::Triple::Cygwin ||
           Triple.getOS() == llvm::Triple::MinGW32) {
         switch (Attr.getKind()) {
         case AttributeList::AT_DLLImport: HandleDLLImportAttr(D, Attr, S);