Unmark foreign lib test as broken for win and ghc >= 9.0 (#8111)

* Unmark foreign lib test as broken for win

It seems #7764 fixed the test, but the pr was merged without
having the ci green

* Add changelog for #7763, #7764 and #8111

Author: jneira

cabal-testsuite/PackageTests/ForeignLibs/setup.test.hs

@@ -28,9 +28,7 @@ main = setupAndCabalTest . recordMode DoNotRecord $ do
   skipUnlessGhcVersion ">= 7.8"
   osx <- isOSX
   ghc80 <- isGhcVersion "== 8.0.2"
-  win <- isWindows
-  ghcGreaterThan90 <- isGhcVersion ">= 9.0"
-  expectBrokenIf ((osx && ghc80) || (win && ghcGreaterThan90)) 7989 $
+  expectBrokenIf (osx && ghc80) 7989 $
     withPackageDb $ do
         setup_install []
         setup "copy" [] -- regression test #4156

changelog.d/pr-7764

@@ -0,0 +1,17 @@
+synopsis: Use ghc -flink-rts option when available
+packages: Cabal
+prs: #7764 #8111
+issues: #7763
+significance: significant
+
+description: {
+
+Previously Cabal did quite some headstands to link against libHSrts.
+Note only this is complex but it couples very tightly to GHC's implementation.
+Thankfully, as of GHC 9.0 GHC provides a -flink-rts flag for precisely this purpose.
+Use it when available.
+
+It fixed a bug which make Cabal unusable to build foreign libraries for windows and ghc 9.0 or 9.2.
+See <https://gitlab.haskell.org/ghc/ghc/-/issues/20520>
+
+}