Bump cabal-version to 2.0 for autogen-modules

Author: andreasabel

CHANGELOG.md

@@ -1,3 +1,7 @@
+### Unreleased
+
+- Bump `cabal-version` to 2.0 to support field `autogen-modules`.
+
 ### 1.3.2.4
 
 _2025-05-09 Andreas Abel_

regex-tdfa.cabal

@@ -1,4 +1,4 @@
-cabal-version:          1.24
+cabal-version:          2.0
 name:                   regex-tdfa
 version:                1.3.2.4
 
@@ -92,12 +92,14 @@ library
                         Text.Regex.TDFA.Text
                         Text.Regex.TDFA.Text.Lazy
 
+  autogen-modules:      Paths_regex_tdfa
   other-modules:        Paths_regex_tdfa
 
   build-depends:        array              >= 0.5    && < 0.6
                       , base               >= 4.9    && < 5
                       , bytestring         >= 0.10   && < 0.13
                       , containers         >= 0.5    && < 1
+                          -- containers >= 0.5.11.0 (GHC 8.4) will allow to drop some #if
                       , mtl                >= 2.1.3  && < 2.4
                       , parsec             == 3.1.*
                       , regex-base         == 0.94.*
@@ -163,10 +165,9 @@ test-suite regex-tdfa-unittest
                         Rank2Types
   other-extensions:     GeneralizedNewtypeDeriving
 
-  ghc-options:          -Wall -funbox-strict-fields
-
-  if impl(ghc >= 8.0)
-    ghc-options:        -Wcompat
+  ghc-options:          -funbox-strict-fields
+                        -Wall
+                        -Wcompat
 
   if flag(force-O2)
     ghc-options:        -O2