diff options
Diffstat (limited to 'hadrian/src/Settings/Builders/Ghc.hs')
| -rw-r--r-- | hadrian/src/Settings/Builders/Ghc.hs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hadrian/src/Settings/Builders/Ghc.hs b/hadrian/src/Settings/Builders/Ghc.hs index 947172ecb8..b211657b9e 100644 --- a/hadrian/src/Settings/Builders/Ghc.hs +++ b/hadrian/src/Settings/Builders/Ghc.hs @@ -250,6 +250,16 @@ packageGhcArgs :: Args packageGhcArgs = do package <- getPackage ghc_ver <- readVersion <$> (expr . ghcVersionStage =<< getStage) + -- ROMES: Until the boot compiler no longer needs ghc's + -- unit-id to be "ghc", the stage0 compiler must be built + -- with `-this-unit-id ghc`, while the wired-in unit-id of + -- ghc is correctly set to the unit-id we'll generate for + -- stage1 (set in generateVersionHs in Rules.Generate). + -- + -- However, we don't need to set the unit-id of "ghc" to "ghc" when + -- building stage0 because we have a flag in compiler/ghc.cabal.in that is + -- sets `-this-unit-id ghc` when hadrian is building stage0, which will + -- overwrite this one. pkgId <- expr $ pkgIdentifier package mconcat [ arg "-hide-all-packages" , arg "-no-user-package-db" |