# ESSENTIAL, for getting reasonable performance from the I/O library:
SRC_HC_OPTS += -funbox-strict-fields
+# Grrr, gcc-4.1.0 has a bug in -O2 and higher that causes miscompilation of
+# GHC.Show.itos. See gcc bug #26824. We must drop back to -O1.
+GHC/Show_HC_OPTS += -optc-O1
+
# -----------------------------------------------------------------------------
# PrimOpWrappers