Sync with GHC head

cabal.project

@@ -1,19 +1,20 @@
 packages: .
+          ../extra
 
 -- source-repository-package
 --     type: git
---     location: https://github.com/mitchellwrosen/fork--unix-compat.git
---     tag:  f28060acd449643d267954647c1bb7c748c35fa9
+--     location: https://github.com/ndmitchell/extra.git
+--     tag: e5255e2741a7aba84aa767d5342a3c39cd8e11a0
 
--- repository head.hackage.ghc.haskell.org
---    url: https://ghc.gitlab.haskell.org/head.hackage/
---    secure: True
---    key-threshold: 3
---    root-keys:
---        f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89
---        7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d
---        26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329
--- active-repositories: hackage.haskell.org, head.hackage.ghc.haskell.org:override
+repository head.hackage.ghc.haskell.org
+   url: https://ghc.gitlab.haskell.org/head.hackage/
+   secure: True
+   key-threshold: 3
+   root-keys:
+       f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89
+       7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d
+       26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329
+active-repositories: hackage.haskell.org, head.hackage.ghc.haskell.org:override
 
 -- optional-packages: packages/*/*.cabal
 

configure.sh

@@ -244,3 +244,9 @@ rm -fr dist*
 # cabal configure -fdev -froundtrip --enable-tests --with-compiler=ghc-9.10.1
 cabal configure  -froundtrip --enable-tests --with-compiler=ghc-9.10.1
 
+#--------------------------------------------------------------------
+#- GHC 9.12.1
+
+# cabal configure -fdev -froundtrip --enable-tests --with-compiler=/opt/ghc/9.11.20240908/bin/ghc --allow-newer
+# cabal configure -fdev -froundtrip --enable-tests --with-compiler=/opt/ghc/9.11.20240908/bin/ghc --allow-newer
+cabal configure -fdev --enable-tests --with-compiler=/opt/ghc/9.11.20240908/bin/ghc --allow-newer