+
+# Euch, hideous hack:
+CABAL_VERSION = $(shell grep "^Version:" Cabal/Cabal.cabal | sed -e "s/^Version: //" -e 's/\./,/g')
+
+BOOTSTRAPPING_FLAGS = $(CABAL_GHC_FLAGS) -DCABAL_VERSION=$(CABAL_VERSION) -odir $(HERE_ABS)/bootstrapping -hidir $(HERE_ABS)/bootstrapping -i$(HERE_ABS)/Cabal -i$(HERE_ABS)/filepath -i$(HERE_ABS)/hpc
+
+.PHONY: boot
+
+boot: ifBuildable/ifBuildable cabal-bin bootstrapping.conf
+
+cabal-bin: cabal-bin.hs
+ -mkdir bootstrapping
+ $(GHC) $(BOOTSTRAPPING_FLAGS) --make cabal-bin -o cabal-bin
+
+bootstrapping.conf: cabal-bin
+ echo "[]" > $@.tmp
+ -cd extensible-exceptions && $(CABAL) clean --distpref=dist-bootstrapping
+ cd extensible-exceptions && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
+ cd extensible-exceptions && $(CABAL) build --distpref=dist-bootstrapping
+ cd extensible-exceptions && $(CABAL) install --distpref=dist-bootstrapping --inplace
+ -cd filepath && $(CABAL) clean --distpref=dist-bootstrapping
+ cd filepath && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
+ cd filepath && $(CABAL) build --distpref=dist-bootstrapping
+ cd filepath && $(CABAL) install --distpref=dist-bootstrapping --inplace
+ -cd Cabal && $(CABAL) clean --distpref=dist-bootstrapping
+ cd Cabal && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
+ cd Cabal && $(CABAL) build --distpref=dist-bootstrapping
+ cd Cabal && $(CABAL) install --distpref=dist-bootstrapping --inplace
+ -cd hpc && $(CABAL) clean --distpref=dist-bootstrapping
+ cd hpc && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
+ cd hpc && $(CABAL) build --distpref=dist-bootstrapping
+ cd hpc && $(CABAL) install --distpref=dist-bootstrapping --inplace
+ mv $@.tmp $@