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/libsvm/default.nix

@@ -0,0 +1,39 @@
+{lib, stdenv, fetchurl}:
+
+stdenv.mkDerivation rec {
+  pname = "libsvm";
+  version = "3.25";
+
+  src = fetchurl {
+    url = "https://www.csie.ntu.edu.tw/~cjlin/libsvm/libsvm-${version}.tar.gz";
+    sha256 = "sha256-UjUOiqdAsXbh13Pp3AjxNAIYw34BvsN6uQ2wEn5LteU=";
+  };
+
+  buildPhase = ''
+    make
+    make lib
+  '';
+
+  installPhase = let
+    libSuff = stdenv.hostPlatform.extensions.sharedLibrary;
+  in ''
+    install -D libsvm.so.2 $out/lib/libsvm.2${libSuff}
+    ln -s $out/lib/libsvm.2${libSuff} $out/lib/libsvm${libSuff}
+    install -Dt $out/bin/ svm-scale svm-train svm-predict
+    install -Dm644 -t $out/include svm.h
+    mkdir $out/include/libsvm
+    ln -s $out/include/svm.h $out/include/libsvm/svm.h
+  '';
+
+  postFixup = lib.optionalString stdenv.isDarwin ''
+    install_name_tool -id libsvm.2.dylib $out/lib/libsvm.2.dylib;
+  '';
+
+  meta = with lib; {
+    description = "A library for support vector machines";
+    homepage = "https://www.csie.ntu.edu.tw/~cjlin/libsvm/";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.spwhitt ];
+    platforms = platforms.unix;
+  };
+}