Index: libunwind/trunk/test/libunwind/test/config.py
===================================================================
--- libunwind/trunk/test/libunwind/test/config.py
+++ libunwind/trunk/test/libunwind/test/config.py
@@ -43,10 +43,11 @@
 
     def configure_compile_flags(self):
         self.cxx.compile_flags += ['-DLIBUNWIND_NO_TIMER']
-        if self.get_lit_bool('enable_exceptions', True):
-            self.cxx.compile_flags += ['-funwind-tables']
-        else:
+        if not self.get_lit_bool('enable_exceptions', True):
             self.cxx.compile_flags += ['-fno-exceptions', '-DLIBUNWIND_HAS_NO_EXCEPTIONS']
+        # Stack unwinding tests need unwinding tables and these are not
+        # generated by default on all Targets.
+        self.cxx.compile_flags += ['-funwind-tables']
         if not self.get_lit_bool('enable_threads', True):
             self.cxx.compile_flags += ['-D_LIBUNWIND_HAS_NO_THREADS']
             self.config.available_features.add('libunwind-no-threads')