make cc_shared_library optional in tests

Only use on Bazel >= 7

Author: malt3

Diff for: rules_haskell_tests/tests/repl-targets/hs_lib_repl_test/BUILD.bazel

@@ -4,6 +4,7 @@ load(
     "haskell_library",
     "haskell_toolchain_library",
 )
+load(":maybe_cc_shared_library.bzl", "maybe_cc_shared_library")
 
 [
     haskell_toolchain_library(name = name)
@@ -42,12 +43,7 @@ cc_library(
     visibility = ["//visibility:public"],
 )
 
-cc_shared_library(
-    name = "ourclibrary_shared",
-    deps = [
-        ":ourclibrary",
-    ],
-)
+library_name = maybe_cc_shared_library(name = "ourclibrary")
 
 config_setting(
     name = "nix",
@@ -79,7 +75,7 @@ haskell_library(
     deps = [
         ":array",
         ":base",
-        ":ourclibrary_shared",
         ":zlib",
+        library_name,
     ],
 )

Diff for: rules_haskell_tests/tests/repl-targets/hs_lib_repl_test/WORKSPACE

@@ -140,3 +140,14 @@ stack_snapshot(
 register_toolchains(
     ":c2hs-toolchain",
 )
+
+http_archive(
+    name = "bazel_features",
+    sha256 = "ba1282c1aa1d1fffdcf994ab32131d7c7551a9bc960fbf05f42d55a1b930cbfb",
+    strip_prefix = "bazel_features-1.15.0",
+    url = "https://github.com/bazel-contrib/bazel_features/releases/download/v1.15.0/bazel_features-v1.15.0.tar.gz",
+)
+
+load("@bazel_features//:deps.bzl", "bazel_features_deps")
+
+bazel_features_deps()

Diff for: rules_haskell_tests/tests/repl-targets/hs_lib_repl_test/maybe_cc_shared_library.bzl

@@ -0,0 +1,17 @@
+load("@bazel_features//:features.bzl", "bazel_features")
+
+def maybe_cc_shared_library(name, **kwargs):
+    if _has_cc_shared_library():
+        shared_name = "%s_shared" % name
+        native.cc_shared_library(
+            name = shared_name,
+            deps = [name],
+            **kwargs,
+        )
+        return shared_name
+    return name
+
+
+
+def _has_cc_shared_library():
+    return bazel_features.globals.CcSharedLibraryInfo != None