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? Logs: > :info:build In file included from compiler/ghci/keepCAFsForGHCi.c:1:0: error: > :info:build In file included from includes/Rts.h:191:0: error: > :info:build includes/rts/storage/ClosureMacros.h:211:25: error: > :info:build error: use of undeclared identifier 'TAG_MASK' > :info:build return (StgWord)p & TAG_MASK; > :info:build ^ > :info:build | > :info:build 211 | return (StgWord)p & TAG_MASK; > :info:build | ^ > :info:build includes/rts/storage/ClosureMacros.h:217:40: error: > :info:build error: use of undeclared identifier 'TAG_MASK' > :info:build return (StgClosure*)((StgWord)p & ~TAG_MASK); > :info:build ^ > :info:build | > :info:build 217 | return (StgClosure*)((StgWord)p & ~TAG_MASK); > :info:build | ^ > :info:build includes/rts/storage/ClosureMacros.h:223:46: error: > :info:build error: use of undeclared identifier 'TAG_MASK' > :info:build return (const StgClosure*)((StgWord)p & ~TAG_MASK); > :info:build ^
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