Add expression for cabal-delete
Patch lua52 to build on Darwin
Fix flex for building on darwin systems
Merge pull request #2277 from jwiegley/flex

Fix flex for building on darwin systems
Merge pull request #2276 from jwiegley/lua52

Patch lua52 to build on Darwin
Merge pull request #2273 from jwiegley/cabal-delete

Add expression for cabal-delete
Adding ghdl 0.31 mcode flavour

This allows having a recent ghdl, without building it with gcc.
The major drawback is the speed.
Use IcedTea for VUE, not Oracle JRE