diff --git a/sysdeps/m68k/m68020/Makefile b/sysdeps/m68k/m68020/Makefile
new file mode 100644
index 0000000000..b17635467d
--- /dev/null
+++ b/sysdeps/m68k/m68020/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),db2)
+CPPFLAGS += -DHAVE_SPINLOCKS=1 -DHAVE_ASSEM_MC68020_GCC=1
+endif