-# smash it into Lisp source code, so that we won't get all stressed
-# and careworn like the CMU CL maintainers.
-cd tools-for-build
-$gnumake grovel_headers
-cd ..
-tools-for-build/grovel_headers > output/stuff-groveled-from-headers.lisp
+# smash it into Lisp source code.
+$GNUMAKE -C tools-for-build -I../src/runtime grovel-headers
+tools-for-build/grovel-headers > output/stuff-groveled-from-headers.lisp
+
+$GNUMAKE -C src/runtime after-grovel-headers