diff --git a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
--- a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
+++ b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
@@ -428,6 +428,16 @@
 	endif
 endif
 
+ifeq (1, $(USE_SYSTEM_STDLIB))
+    ifeq "$(OS)" "Darwin"
+        ifeq "$(SDKROOT)" ""
+             $(error "SDKROOT must be set on Darwin to use the system libcxx")
+        endif
+        CXXFLAGS += -nostdlib++ -nostdinc++ -cxx-isystem $(SDKROOT)/usr/include/c++/v1
+        LDFLAGS += -L$(SDKROOT)/usr/lib -Wl,-rpath,$(SDKROOT)/usr/lib -lc++
+    endif
+endif
+
 # If no explicit request was made, but we have paths to a custom libcxx, use
 # them.
 ifeq ($(or $(USE_LIBSTDCPP), $(USE_LIBCPP), $(USE_SYSTEM_STDLIB)),)