uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/libraries/memorymapping/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation {
+  pname = "memorymapping";
+  version = "unstable-2014-02-20";
+
+  src = fetchFromGitHub {
+    owner = "NimbusKit";
+    repo = "memorymapping";
+    rev = "fc285afe13cb9d56a40c647b8ed6d6bd40636af7";
+    sha256 = "sha256-9u/QvK9TDsKxcubINH2OAbx5fXXkKF0+YT7LoLDaF0M=";
+  };
+
+  dontConfigure = true;
+
+  buildPhase = ''
+    runHook preBuild
+
+    $CC -c src/fmemopen.c
+    $AR rcs libmemorymapping.a fmemopen.o
+    sed -e '1i#include <stdio.h>' -i src/fmemopen.h
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -D libmemorymapping.a "$out"/lib/libmemorymapping.a
+    install -D src/fmemopen.h "$out"/include/fmemopen.h
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    homepage = "https://nimbuskit.github.io/memorymapping/";
+    description = "fmemopen for Mac OS and iOS";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ veprbl ];
+    # Uses BSD-style funopen() to implement glibc-style fmemopen().
+    # Add more BSDs if you need to.
+    platforms = platforms.darwin;
+    broken = stdenv.isAarch64;
+  };
+}

pkgs/development/libraries/memorymapping/setup-hook.sh

@@ -0,0 +1,6 @@
+useMemorymapping () {
+  export NIX_CFLAGS_COMPILE="${NIX_CFLAGS_COMPILE-}${NIX_CFLAGS_COMPILE:+ }-include fmemopen.h";
+  export NIX_LDFLAGS="${NIX_LDFLAGS-}${NIX_LDFLAGS:+ }-lmemorymapping";
+}
+
+postHooks+=(useMemorymapping)