Silence a clang++ warning

232d44fb · Silas Boyd-Wickizer · f45857b9 · 232d44fb
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ COMFLAGS := -static -fno-builtin -fno-strict-aliasing -O2 -Wall \
 	    -g -MD -m64 -Werror -fms-extensions -mno-sse \
 	    -mcmodel=large -mno-red-zone -I$(QEMUSRC) -fno-omit-frame-pointer \
 	    -DHW_$(HW) -include param.h -include compiler.h -DXV6 \
-	    -Wno-gnu-designator
+	    -Wno-delete-non-virtual-dtor -Wno-gnu-designator
 COMFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
 CFLAGS   := $(COMFLAGS) -std=c99
 CXXFLAGS := $(COMFLAGS) -std=c++0x -Wno-sign-compare -fno-exceptions -fno-rtti