+# perf matches the default settings, repeated here for comparison:
+
+SRC_HC_OPTS = -O -H64m
+GhcStage1HcOpts = -O -fasm
+GhcStage2HcOpts = -O2 -fasm
+GhcHcOpts = -Rghc-timing
+GhcLibHcOpts = -O2 -XGenerics
+GhcLibWays += p
+
+ifeq "$(PlatformSupportsSharedLibs)" "YES"
+GhcLibWays += dyn
+endif