openssl: drop $bin, patch configure script

overlay/default.nix

@@ -76,6 +76,19 @@ in {
     targetLlvmLibraries = targetPackages.llvmPackages_8.libraries;
   });
 
+  openssl = overrideHostAttrs openssl (attrs: {
+    outputs = [ "out" ]
+      ++ builtins.filter (x: x != "bin" && x != "out") attrs.outputs;
+    patches = attrs.patches or [ ] ++ [ ./openssl/genode.patch ];
+    configureScript = {
+      x86_64-genode = "./Configure Genode-x86_64";
+    }.${stdenv.hostPlatform.system} or (throw
+      "Not sure what configuration to use for ${stdenv.hostPlatform.config}");
+    configureFlags = attrs.configureFlags ++ [ "no-devcryptoeng" ];
+    postInstall =
+      "rm $out/bin/c_rehash"; # eliminate the perl runtime dependency
+  });
+
   solo5-tools = callPackage ./solo5-tools { };
 
   tup = prev.tup.overrideAttrs (attrs: { setupHook = ./tup/setup-hook.sh; });

overlay/openssl/genode.patch

@@ -0,0 +1,32 @@
+diff -ur a/Configurations/10-main.conf b/Configurations/10-main.conf
+--- a/Configurations/10-main.conf	2019-09-10 18:43:07.000000000 +0530
++++ b/Configurations/10-main.conf	2020-05-27 16:03:09.416462556 +0530
+@@ -1559,6 +1559,28 @@
+         perlasm_scheme   => "macosx",
+     },
+ 
++##### Genode
++    "Genode-x86_32" => {
++        inherit_from     => [ "BASE_unix" ],
++        CC               => "cc",
++        CFLAGS           => picker(default => "-Wall",
++                                   debug   => "-O0 -g",
++                                   release => "-O3"),
++        cppflags         => threads("-D_THREAD_SAFE -D_REENTRANT"),
++        bn_ops           => "BN_LLONG",
++        thread_scheme    => "pthreads",
++        dso_scheme       => "dlfcn",
++        shared_target    => "linux-shared",
++        shared_cflag     => "-fPIC",
++        shared_extension => ".so",
++        perlasm_scheme   => "elf",
++    },
++    "Genode-x86_64" => {
++        inherit_from     => [ "Genode-x86_32", asm("x86_64_asm") ],
++        lib_cppflags     => add("-DL_ENDIAN"),
++        bn_ops           => "SIXTY_FOUR_BIT_LONG",
++    },
++
+ ##### GNU Hurd
+     "hurd-x86" => {
+         inherit_from     => [ "BASE_unix" ],