+# do we want statistics
+enable_statistics := @enable_statistics@
+# do we want external description of effects
+enable_external_effects := @enable_external_effects@
+# do we want to test the firm internal backend stuff?
+enable_backend := @enable_backend@
+
+build_subdirs := ir/adt ir/debug ir/tv ir/common ir/ident ir/ir \
+ ir/opt ir/tr ir/ana ir/stat ir/ana2
+
+ifeq (@enable_external_effects@,yes)
+build_subdirs += ir/external
+endif