-SRC_HC_OPTS = -H32m -O0 $(MyWarningOpts)
-GhcHcOpts = -Rghc-timing -DDEBUG
-GhcLibHcOpts = -O -dcore-lint $(MyWarningOpts) -keep-hc-files
-GhcLibWays =
+SRC_HC_OPTS = -H32m -O -fasm $(MyWarningOpts)
+GhcLibHcOpts = -O -dcore-lint $(MyWarningOpts)
+GhcLibWays =
+
+# If you're working on the stage1 compiler, build stage1 with debugging:
+GhcStage1HcOpts = -Rghc-timing -O0 -DDEBUG