perl-moose: fix darwin build

pkgs/top-level/perl-packages.nix

@@ -9050,6 +9050,9 @@ let self = _self // overrides; _self = with self; {
     };
     buildInputs = [ CPANMetaCheck CPANMetaRequirements DistCheckConflicts TestCleanNamespaces TestFatal TestRequires ModuleMetadata ];
     propagatedBuildInputs = [ ClassLoad ClassLoadXS DataOptList DevelGlobalDestruction DevelStackTrace DistCheckConflicts EvalClosure ListMoreUtils MROCompat ModuleRuntime ModuleRuntimeConflicts PackageDeprecationManager PackageStash PackageStashXS ParamsUtil SubExporter SubName TaskWeaken TryTiny ];
+    preConfigure = ''
+      export LD=$CC
+    '';
     meta = {
       homepage = http://moose.perl.org/;
       description = "A postmodern object system for Perl 5";