diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f8da366d72d..e08762faee1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1966,7 +1966,8 @@ let
     profiledCompiler = false;
     enableMultilib = false;
     # cross-building for ultrasparc in 4.4.3 will require disabling shared due to a gcc bug.
-    # enableShared = false;
+    # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41818
+    enableShared = if (cross.platform.arch == "sparc64") then true false else;
     crossStageStatic = false;
   };