+# Get rid of --enable-hc-boot-unregisterised in $configotps if we had it
+configopts=`echo $configopts | sed s/--enable-hc-boot-unregisterised//`
+
+# Reconfigure, using the newly-build ghc binary as our $(GHC), and
+# with hc bootstrapping disabled.
+HappyCmd="$PWD/distrib/fake-happy" ./configure --with-ghc="$PWD/ghc/compiler/ghc-inplace" $configopts
+
+PRIMOP_BITS="primop-data-decl.hs-incl \
+ primop-tag.hs-incl \
+ primop-list.hs-incl \
+ primop-has-side-effects.hs-incl \
+ primop-out-of-line.hs-incl \
+ primop-commutable.hs-incl \
+ primop-needs-wrapper.hs-incl \
+ primop-can-fail.hs-incl \
+ primop-strictness.hs-incl \
+ primop-usage.hs-incl \
+ primop-primop-info.hs-incl"
+
+# Remove the old libraries. Don't use make clean, because we don't
+# want to delete the .hs files generated from the .hsc files, because
+# we don't have hsc2hs built yet.
+find libraries hslibs | grep '\.[oa]$' | xargs rm -f
+
+# Do includes and RTS now
+$MAKE -C ghc/includes boot && $MAKE -C ghc/includes all
+$MAKE -C ghc/rts boot && $MAKE -C ghc/rts all
+
+# Now build a new set of libraries
+$MAKE -C libraries boot all
+
+# Build all of ghc/utils
+$MAKE -C ghc/utils clean && $MAKE -C ghc/utils boot all
+
+# Now we can build hslibs (hsc2hs is required, so must be after ghc/utils)
+$MAKE -C hslibs boot all
+
+# The reconfigure step updates a few files, which can lead to
+# unnecessary recompilations. Touch a bunch of things here to avoid
+# having to recompile stuff that we've already built.
+(cd ghc/compiler; touch $PRIMOP_BITS parser/hschooks.o prelude/PrimOp.o main/Config.hs main/Config.o ghc-*)