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-rw-r--r--ghc/ghc.mk6
1 files changed, 6 insertions, 0 deletions
diff --git a/ghc/ghc.mk b/ghc/ghc.mk
index 44dd126d37..a5c7801863 100644
--- a/ghc/ghc.mk
+++ b/ghc/ghc.mk
@@ -161,6 +161,12 @@ $(GHC_STAGE2) : | $$(touchy_INPLACE)
$(GHC_STAGE3) : | $$(touchy_INPLACE)
endif
+# Modules like vector:Data.Vector.Fusion.Stream.Monadic use annotations,
+# which means they depend on GHC.Desugar. To ensure that This module is
+# available by the time it is needed, we make the stage 2 compiler
+# depend on it.
+$(GHC_STAGE2) : $(foreach w,$(GhcLibWays),libraries/base/dist-install/build/GHC/Desugar.$($w_osuf))
+
endif
INSTALL_LIBS += settings