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-rw-r--r--mk/build.mk.sample12
1 files changed, 8 insertions, 4 deletions
diff --git a/mk/build.mk.sample b/mk/build.mk.sample
index 34d260a712..44b2537f67 100644
--- a/mk/build.mk.sample
+++ b/mk/build.mk.sample
@@ -29,10 +29,14 @@ MyWarningOpts = -W -fno-warn-unused-matches -fwarn-unused-imports
ifeq "$(BuildFlavour)" "perf"
-SRC_HC_OPTS = -H32m -O2
-GhcHcOpts = -Rghc-timing
-GhcLibHcOpts =
-GhcLibWays = p
+# 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 -fgenerics
+GhcLibWays = p
endif