[commit: ghc] wip/T11970's head updated: Basic rip out (a836ca0)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

Branch 'wip/T11970' now includes:

     6ace660 rts: Fix build when USE_LARGE_ADDRESS_SPACE is undefined
     9130867 Skip retc001 on OSX
     a836ca0 Basic rip out