Bump Cabal submodule

Adapts GHC to the factoring-out of `Cabal-syntax`.

Fixes #20991.

Metric Decrease:
    haddock.Cabal

8 files changed, 18 insertions, 20 deletions

diff --git a/ghc.mk b/ghc.mk
index cf4ca7dcad..683a04d571 100644
--- a/ghc.mk
+++ b/ghc.mk
@@ -420,7 +420,7 @@ else # CLEANING
 # programs such as GHC and ghc-pkg, that we do not assume the stage0
 # compiler already has installed (or up-to-date enough).
 # Note that these must be given in topological order.
-PACKAGES_STAGE0 = binary transformers mtl hpc ghc-boot-th ghc-boot template-haskell text parsec Cabal/Cabal ghc-heap exceptions ghci
+PACKAGES_STAGE0 = binary transformers mtl hpc ghc-boot-th ghc-boot template-haskell text parsec Cabal/Cabal-syntax Cabal/Cabal ghc-heap exceptions ghci
 ifeq "$(Windows_Host)" "NO"
 PACKAGES_STAGE0 += terminfo
 endif
@@ -454,6 +454,7 @@ PACKAGES_STAGE1 += mtl
 PACKAGES_STAGE1 += ghc-boot
 PACKAGES_STAGE1 += text
 PACKAGES_STAGE1 += parsec
+PACKAGES_STAGE1 += Cabal/Cabal-syntax
 PACKAGES_STAGE1 += Cabal/Cabal
 PACKAGES_STAGE1 += ghc-compact
 PACKAGES_STAGE1 += ghc-heap
diff --git a/hadrian/src/Packages.hs b/hadrian/src/Packages.hs
index cafea5ff69..a44e3cd95e 100644
--- a/hadrian/src/Packages.hs
+++ b/hadrian/src/Packages.hs
@@ -1,7 +1,7 @@
 {-# OPTIONS_GHC -fno-warn-missing-signatures #-}
 module Packages (
     -- * GHC packages
-    array, base, binary, bytestring, cabal, checkPpr,
+    array, base, binary, bytestring, cabal, cabalSyntax, checkPpr,
     checkExact, countDeps,
     compareSizes, compiler, containers, deepseq, deriveConstants, directory,
     exceptions, filepath, genapply, genprimopcode, ghc, ghcBignum, ghcBoot, ghcBootTh,
@@ -32,7 +32,7 @@ import Oracles.Setting
 -- packages and modify build default build conditions in "UserSettings".
 ghcPackages :: [Package]
 ghcPackages =
-    [ array, base, binary, bytestring, cabal, checkPpr, checkExact, countDeps
+    [ array, base, binary, bytestring, cabalSyntax, cabal, checkPpr, checkExact, countDeps
     , compareSizes, compiler, containers, deepseq, deriveConstants, directory
     , exceptions, filepath, genapply, genprimopcode, ghc, ghcBignum, ghcBoot, ghcBootTh
     , ghcCompact, ghcHeap, ghci, ghciWrapper, ghcPkg, ghcPrim, haddock, haskeline, hsc2hs
@@ -50,6 +50,7 @@ array               = lib  "array"
 base                = lib  "base"
 binary              = lib  "binary"
 bytestring          = lib  "bytestring"
+cabalSyntax         = lib  "Cabal-syntax"    `setPath` "libraries/Cabal/Cabal-syntax"
 cabal               = lib  "Cabal"           `setPath` "libraries/Cabal/Cabal"
 checkPpr            = util "check-ppr"
 checkExact          = util "check-exact"
diff --git a/hadrian/src/Settings/Default.hs b/hadrian/src/Settings/Default.hs
index 36a1ed0d8e..8c490347b9 100644
--- a/hadrian/src/Settings/Default.hs
+++ b/hadrian/src/Settings/Default.hs
@@ -62,6 +62,7 @@ stage0Packages :: Action [Package]
 stage0Packages = do
     cross <- flag CrossCompiling
     return $ [ binary
+             , cabalSyntax
              , cabal
              , compareSizes
              , compiler
diff --git a/libraries/Cabal b/libraries/Cabal
-Subproject 9d9fe65d1e6db56004a00f1908207d5ea4ed18d
+Subproject d638e33dbc056048b393964286c7fe394b2730d
diff --git a/utils/ghc-cabal/Main.hs b/utils/ghc-cabal/Main.hs
index 0514af148d..20ee539e0a 100644
--- a/utils/ghc-cabal/Main.hs
+++ b/utils/ghc-cabal/Main.hs
@@ -8,12 +8,12 @@ import qualified Distribution.ModuleName as ModuleName
 import Distribution.PackageDescription
 import Distribution.PackageDescription.Check hiding (doesFileExist)
 import Distribution.PackageDescription.Configuration
-import Distribution.PackageDescription.Parsec
 import Distribution.Package
 import Distribution.Simple
 import Distribution.Simple.Configure
 import Distribution.Simple.LocalBuildInfo
 import Distribution.Simple.GHC
+import Distribution.Simple.PackageDescription
 import Distribution.Simple.Program
 import Distribution.Simple.Program.HcPkg
 import Distribution.Simple.Setup (ConfigFlags(configStripLibs), fromFlagOrDefault, toFlag)
@@ -413,6 +413,7 @@ generate directory distdir config_args
           mkLibraryRelDir "rts"        = "rts/dist-install/build"
           mkLibraryRelDir "ghc"        = "compiler/stage2/build"
           mkLibraryRelDir "Cabal"      = "libraries/Cabal/Cabal/dist-install/build"
+          mkLibraryRelDir "Cabal-syntax" = "libraries/Cabal/Cabal-syntax/dist-install/build"
           mkLibraryRelDir "containers" = "libraries/containers/containers/dist-install/build"
           mkLibraryRelDir l            = "libraries/" ++ l ++ "/dist-install/build"
           libraryRelDirs = map mkLibraryRelDir transitiveDepNames
diff --git a/utils/ghc-cabal/ghc-cabal.cabal b/utils/ghc-cabal/ghc-cabal.cabal
index bdf638ee47..537b5e357b 100644
--- a/utils/ghc-cabal/ghc-cabal.cabal
+++ b/utils/ghc-cabal/ghc-cabal.cabal
@@ -19,8 +19,9 @@ Executable ghc-cabal
     Default-Language: Haskell2010
     Main-Is: Main.hs
 
-    Build-Depends: base       >= 3   && < 5,
-                   bytestring >= 0.10 && < 0.12,
-                   Cabal      >= 3.2 && < 3.8,
-                   directory  >= 1.1 && < 1.4,
-                   filepath   >= 1.2 && < 1.5
+    Build-Depends: base         >= 3   && < 5,
+                   bytestring   >= 0.10 && < 0.12,
+                   Cabal        >= 3.7 && < 3.8,
+                   Cabal-syntax >= 3.7 && < 3.8,
+                   directory    >= 1.1 && < 1.4,
+                   filepath     >= 1.2 && < 1.5
diff --git a/utils/ghc-cabal/ghc.mk b/utils/ghc-cabal/ghc.mk
index ca1cda5307..035ee8adaa 100644
--- a/utils/ghc-cabal/ghc.mk
+++ b/utils/ghc-cabal/ghc.mk
@@ -37,21 +37,12 @@ ifneq "$(BINDIST)" "YES"
 $(ghc-cabal_INPLACE) : $(ghc-cabal_DIST_BINARY) | $$(dir $$@)/.
 	"$(CP)" $< $@
 
-# Minor hack, since we can't reuse the `hs-suffix-rules-srcdir` macro
-ifneq ($(wildcard libraries/Cabal/Cabal/src/Distribution/Fields/Lexer.x),)
-# Lexer.x exists so we have to call Alex ourselves
-CABAL_LEXER_DEP := bootstrapping/Cabal/src/Distribution/Fields/Lexer.hs
-
-bootstrapping/Cabal/src/Distribution/Fields/Lexer.hs: libraries/Cabal/Cabal/src/Distribution/Fields/Lexer.x
-	mkdir -p bootstrapping/Cabal/src/Distribution/Fields
-	$(call cmd,ALEX) $< -o $@
-else
-CABAL_LEXER_DEP := libraries/Cabal/Cabal/src/Distribution/Fields/Lexer.hs
-endif
+CABAL_LEXER_DEP := libraries/Cabal/Cabal-syntax/src/Distribution/Fields/Lexer.hs
 
 $(ghc-cabal_DIST_BINARY): $(wildcard libraries/Cabal/Cabal/src/Distribution/*/*/*.hs)
 $(ghc-cabal_DIST_BINARY): $(wildcard libraries/Cabal/Cabal/src/Distribution/*/*.hs)
 $(ghc-cabal_DIST_BINARY): $(wildcard libraries/Cabal/Cabal/src/Distribution/*.hs)
+$(ghc-cabal_DIST_BINARY): $(wildcard libraries/Cabal/Cabal-syntax/src/Distribution/*.hs)
 
 # N.B. Compile with -O0 since this is not a performance-critical executable
 # and the Cabal takes nearly twice as long to build with -O1. See #16817.
@@ -73,6 +64,7 @@ $(ghc-cabal_DIST_BINARY): $(CABAL_LEXER_DEP) utils/ghc-cabal/Main.hs $(TOUCH_DEP
 	       -hidir bootstrapping \
 	       $(CABAL_LEXER_DEP) \
 	       -ilibraries/Cabal/Cabal/src \
+	       -ilibraries/Cabal/Cabal-syntax/src \
 	       -ilibraries/binary/src \
 	       -ilibraries/filepath \
 	       -ilibraries/hpc \
diff --git a/utils/ghc-pkg/ghc-pkg.cabal.in b/utils/ghc-pkg/ghc-pkg.cabal.in
index d299c98372..4d9402c2d3 100644
--- a/utils/ghc-pkg/ghc-pkg.cabal.in
+++ b/utils/ghc-pkg/ghc-pkg.cabal.in
@@ -31,6 +31,7 @@ Executable ghc-pkg
                    containers,
                    filepath,
                    Cabal,
+                   Cabal-syntax,
                    binary,
                    ghc-boot,
                    bytestring