1 files changed, 0 insertions, 6 deletions
diff --git a/pkgs/stdenv/adapters.nix b/pkgs/stdenv/adapters.nix
index 8398c45400e4..87d3938f13d3 100644
--- a/pkgs/stdenv/adapters.nix
+++ b/pkgs/stdenv/adapters.nix
@@ -242,10 +242,4 @@ rec {
       else pkgs.stdenv;
   };
 
-  /* Modify a stdenv so a build uses pre-C++11 ABI by default. */
-  useOldCXXAbi = stdenv: stdenv //
-    { mkDerivation = args: stdenv.mkDerivation (args // {
-        NIX_CFLAGS_COMPILE = toString (args.NIX_CFLAGS_COMPILE or "") + " -D_GLIBCXX_USE_CXX11_ABI=0";
-      });
-    };
 }