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/compilers/gambit/gambit-support.nix

@@ -0,0 +1,39 @@
+{ pkgs, lib }:
+
+rec {
+  stable-params = {
+    stable = true;
+    defaultRuntimeOptions = "f8,-8,t8";
+    buildRuntimeOptions = "f8,-8,t8";
+    fix-stamp = git-version : "";
+    targets = "java,js,php,python,ruby";
+    modules = false;
+  };
+
+  unstable-params = {
+    stable = false;
+    defaultRuntimeOptions = "iL,fL,-L,tL";
+    buildRuntimeOptions = "i8,f8,-8,t8";
+    fix-stamp = git-version : ''
+      substituteInPlace configure \
+        --replace "$(grep '^PACKAGE_VERSION=.*$' configure)" 'PACKAGE_VERSION="v${git-version}"' \
+        --replace "$(grep '^PACKAGE_STRING=.*$' configure)" 'PACKAGE_STRING="Gambit v${git-version}"' ;
+    '';
+    targets = "arm,java,js,php,python,riscv-32,riscv-64,ruby,x86,x86-64"; # eats 100% cpu on _digest
+    modules = false;
+  };
+
+  export-gambopt = params : "export GAMBOPT=${params.buildRuntimeOptions} ;";
+
+  gambit-bootstrap = import ./bootstrap.nix ( pkgs );
+
+  meta = {
+    description = "Optimizing Scheme to C compiler";
+    homepage    = "http://gambitscheme.org";
+    license     = lib.licenses.lgpl21; # dual, also asl20
+    # NB regarding platforms: continuously tested on Linux,
+    # tested on macOS once in a while, *should* work everywhere.
+    platforms   = lib.platforms.unix;
+    maintainers = with lib.maintainers; [ thoughtpolice raskin fare ];
+  };
+}