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/gnu-cobol/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, fetchurl, gcc, makeWrapper
+, db, gmp, ncurses }:
+
+stdenv.mkDerivation rec {
+  pname = "gnu-cobol";
+  version = "3.1.2";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/gnucobol/${lib.versions.majorMinor version}/gnucobol-${version}.tar.xz";
+    sha256 = "0x15ybfm63g7c9340fc6712h9v59spnbyaz4rf85pmnp3zbhaw2r";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  buildInputs = [ db gmp ncurses ];
+
+  cflags  = lib.concatMapStringsSep " " (p: "-L" + (lib.getLib p) + "/lib ") buildInputs;
+  ldflags = lib.concatMapStringsSep " " (p: "-I" + (lib.getDev p) + "/include ") buildInputs;
+
+  cobolCCFlags = "-I$out/include ${ldflags} -L$out/lib ${cflags}";
+
+  postInstall = with lib; ''
+    wrapProgram "$out/bin/cobc" \
+      --set COB_CC "${gcc}/bin/gcc" \
+      --prefix COB_LDFLAGS " " "${cobolCCFlags}" \
+      --prefix COB_CFLAGS " " "${cobolCCFlags}"
+  '';
+
+  meta = with lib; {
+    description = "An open-source COBOL compiler";
+    homepage = "https://sourceforge.net/projects/gnucobol/";
+    license = with licenses; [ gpl3Only lgpl3Only ];
+    maintainers = with maintainers; [ ericsagnes ];
+    platforms = platforms.all;
+  };
+}