--- lib/Support/Unix/Signals.inc.orig	2017-01-06 02:26:33 UTC
+++ lib/Support/Unix/Signals.inc
@@ -300,7 +300,8 @@ void llvm::sys::AddSignalHandler(void (*
 
 #if defined(HAVE_BACKTRACE) && ENABLE_BACKTRACES && HAVE_LINK_H &&    \
     (defined(__linux__) || defined(__FreeBSD__) ||                             \
-     defined(__FreeBSD_kernel__) || defined(__NetBSD__))
+     defined(__FreeBSD_kernel__) || defined(__NetBSD__) ||            \
+     defined(__BSDSUniX__) || defined(__BSDSUniX_kernel__))
 struct DlIteratePhdrData {
   void **StackTrace;
   int depth;