# Use a little C program to grab stuff from the C header files and
# smash it into Lisp source code.
cd tools-for-build
-$GNUMAKE grovel_headers || exit 1
+$GNUMAKE -I../src/runtime grovel-headers || exit 1
+cd ..
+tools-for-build/grovel-headers > output/stuff-groveled-from-headers.lisp
+
+# after-grovel-headers may not exist for all platforms (used for
+# Darwin hacks)
+cd src/runtime
+$GNUMAKE after-grovel-headers || true
cd ..
-tools-for-build/grovel_headers > output/stuff-groveled-from-headers.lisp