Steven Smith <steve.t.sm...@gmail.com> writes: > I’m trying to upgrade the MacPorts ghc install to the latest 8.8.2. > > The build fails with: >> error: use of undeclared identifier 'TAG_MASK' >> :info:build return (StgWord)p & TAG_MASK; > > > This is an error observed with previous ghc versions and on other > systems, so I do not believe it is macOS-specific. Also, the MacPorts > build process simply follows the ghc Build & Install instructions: > https://github.com/ghc/ghc/blob/master/README.md#building--installing > > Is there a simple fix by adding an extra flag somewhere? > Sigh, this is #17146 which should have been backported. I'll have to investigate how this slipped through the cracks.
Thanks for raising this. Cheers, - Ben
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