+
+demo:
+ mkdir -p .build
+ ../../../inplace/bin/ghc-stage2 $(ghc_opt) -odir .build -hidir .build -c Demo.hs -fforce-recomp
+ ../../../inplace/bin/ghc-stage2 $(ghc_opt) -odir .build -hidir .build --show-iface .build/Demo.hi
+ ../../../inplace/bin/ghc-stage2 $(ghc_opt) -odir .build -hidir .build GArrowTikZ.hs Demo.hs DemoMain.hs Unify.hs -o .build/demo
+ ./.build/demo > .build/test.tex
+ cd .build; pdflatex test.tex