Fix linking error

        addDLL: stdc++ or dependencies not loaded. (Win32 error 126)

See also:
  * https://gitlab.haskell.org/ghc/ghc/-/issues/22738
  * https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.4?version_id=b60e52482a666d25638d59cd7e86851ddf971dc1#link-against-system-cxx-std-lib-instead-of-stdc

package.yaml

@@ -90,7 +90,9 @@ executables:
         extra-libraries: c++
         ld-options: -Wl,-keep_dwarf_unwind
         ghc-options: -fcompact-unwind
-      - condition: os(windows)
+      - condition: os(windows) && impl(ghc >= 9.4)
+        build-depends: system-cxx-std-lib
+      - condition: os(windows) && impl(ghc < 9.4)
         extra-libraries: stdc++
 
 tests:
@@ -114,7 +116,9 @@ tests:
           extra-libraries: c++
           ld-options: -Wl,-keep_dwarf_unwind
           ghc-options: -fcompact-unwind
-        - condition: os(windows)
+        - condition: os(windows) && impl(ghc >= 9.4)
+          build-depends: system-cxx-std-lib
+        - condition: os(windows) && impl(ghc < 9.4)
           extra-libraries: stdc++
 
 flags: