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/giflib/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, fetchurl, fetchpatch, xmlto, docbook_xml_dtd_412, docbook_xsl, libxml2, fixDarwinDylibNames, pkgsStatic }:
+
+stdenv.mkDerivation rec {
+  pname = "giflib";
+  version = "5.2.1";
+  src = fetchurl {
+    url = "mirror://sourceforge/giflib/giflib-${version}.tar.gz";
+    sha256 = "1gbrg03z1b6rlrvjyc6d41bc8j1bsr7rm8206gb1apscyii5bnii";
+  };
+
+  patches = lib.optional stdenv.hostPlatform.isDarwin
+    (fetchpatch {
+      # https://sourceforge.net/p/giflib/bugs/133/
+      name = "darwin-soname.patch";
+      url = "https://sourceforge.net/p/giflib/bugs/_discuss/thread/4e811ad29b/c323/attachment/Makefile.patch";
+      sha256 = "12afkqnlkl3n1hywwgx8sqnhp3bz0c5qrwcv8j9hifw1lmfhv67r";
+      extraPrefix = "./";
+    });
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace 'PREFIX = /usr/local' 'PREFIX = ${builtins.placeholder "out"}'
+  ''
+  # Upstream build system does not support NOT building shared libraries.
+  + lib.optionalString stdenv.hostPlatform.isStatic ''
+    sed -i '/all:/ s/libgif.so//' Makefile
+    sed -i '/all:/ s/libutil.so//' Makefile
+    sed -i '/-m 755 libgif.so/ d' Makefile
+    sed -i '/ln -sf libgif.so/ d' Makefile
+  '';
+
+  nativeBuildInputs = lib.optionals stdenv.isDarwin [ fixDarwinDylibNames ];
+
+  buildInputs = [ xmlto docbook_xml_dtd_412 docbook_xsl libxml2 ];
+
+  passthru.tests.static = pkgsStatic.giflib;
+
+  meta = {
+    description = "A library for reading and writing gif images";
+    platforms = lib.platforms.unix;
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ ];
+    branch = "5.2";
+  };
+}