Patch binutils to produce more deterministic output

pkgs/development/tools/misc/binutils/default.nix

@@ -1,4 +1,6 @@
-{ stdenv, fetchurl, noSysDirs, zlib, cross ? null, gold ? false, bison ? null, flex2535 ? null, bc ? null, dejagnu ? null }:
+{ stdenv, fetchurl, noSysDirs, zlib
+, cross ? null, gold ? false, bison ? null, flex2535 ? null, bc ? null, dejagnu ? null
+, deterministic ? false }:
 
 let basename = "binutils-2.23.1"; in
 stdenv.mkDerivation rec {
@@ -19,7 +21,7 @@ stdenv.mkDerivation rec {
     # That requires upstream changes for things to work. So we can patch it to
     # get the old behaviour by now.
     ./dtneeded.patch
-  ];
+  ] ++ (stdenv.lib.optional deterministic ./deterministic.patch);
 
   buildInputs =
     [ zlib ]
@@ -48,7 +50,8 @@ stdenv.mkDerivation rec {
       + stdenv.lib.optionalString (stdenv.system == "mips64el-linux")
         " --enable-fix-loongson2f-nop"
       + stdenv.lib.optionalString (cross != null) " --target=${cross.config}"
-      + stdenv.lib.optionalString gold " --enable-gold";
+      + stdenv.lib.optionalString gold " --enable-gold"
+      + stdenv.lib.optionalString deterministic " --enable-deterministic-archives";
 
   enableParallelBuilding = true;
       

pkgs/development/tools/misc/binutils/deterministic.patch

@@ -0,0 +1,12 @@
+diff -ur orig/binutils-2.23.1/ld/ldlang.c binutils-2.23.1/ld/ldlang.c
+--- orig/ld/ldlang.c
++++ new/ld/ldlang.c
+@@ -3095,6 +3095,8 @@
+                           ldfile_output_machine))
+     einfo (_("%P%F:%s: can not set architecture: %E\n"), name);
+ 
++  link_info.output_bfd->flags |= BFD_DETERMINISTIC_OUTPUT;
++
+   link_info.hash = bfd_link_hash_table_create (link_info.output_bfd);
+   if (link_info.hash == NULL)
+     einfo (_("%P%F: can not create hash table: %E\n"));

pkgs/top-level/all-packages.nix

@@ -3206,6 +3206,8 @@ let
     inherit noSysDirs;
   };
 
+  binutils_deterministic = binutils.override { deterministic = true; };
+
   binutils_gold = lowPrio (callPackage ../development/tools/misc/binutils {
     inherit noSysDirs;
     gold = true;