Alp Mestanogullari authored Oct 02, 2018 and Andrey Mokhov committed Oct 02, 2018

* honour the flavours advertised by our flavours.md document

In particular, this patches focuses on enabling back the dynamic-enabled ways
for the runtime system, which required to fix a bug in libsuf.

* address some feedback

* make dynamicGhcPrograms :: Action Bool to implement the default logic faithfully

* remove redundant windows check