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-rw-r--r--pkgs/development/libraries/zlib/default.nix7
1 files changed, 7 insertions, 0 deletions
diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index 419a2584ca8..93474d14344 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -13,6 +13,13 @@ stdenv.mkDerivation (rec {
     sha256 = "039agw5rqvqny92cpkrfn243x2gd4xn13hs3xi6isk55d2vqqr9n";
   };
 
+  postPatch = stdenv.lib.optionalString stdenv.isDarwin ''
+    substituteInPlace configure \
+      --replace '/usr/bin/libtool' 'ar' \
+      --replace 'AR="libtool"' 'AR="ar"' \
+      --replace 'ARFLAGS="-o"' 'ARFLAGS="-r"'
+  '';
+
   configureFlags = if static then "" else "--shared";
 
   preConfigure = ''