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/tools/security/nsjail/001-fix-bison-link-error.patch

@@ -0,0 +1,30 @@
+From 8e309a0af0851ab54ca7c6d51b6f3d19ee42c8ee Mon Sep 17 00:00:00 2001
+From: Evangelos Foutras <evangelos@foutrelis.com>
+Date: Wed, 17 Mar 2021 16:36:40 +0200
+Subject: [PATCH] Replace YYUSE call with void cast in src/parser.y
+
+The YYUSE macro was renamed to YY_USE in bison 3.7.5; we might as well
+avoid using it altogether and cast the unused variable to void instead.
+
+Fixes the following linker error:
+
+/usr/bin/ld: kafel/libkafel.a(libkafel.o): in function `kafel_yyerror':
+arm_syscalls.c:(.text+0x6984): undefined reference to `YYUSE'
+---
+ src/parser.y | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/parser.y b/src/parser.y
+index e0f109c..0e01373 100644
+--- a/kafel/src/parser.y
++++ b/kafel/src/parser.y
+@@ -420,8 +420,8 @@ const_def
+ 
+ void yyerror(YYLTYPE * loc, struct kafel_ctxt* ctxt, yyscan_t scanner,
+              const char *msg) {
++  (void)scanner; /* suppress unused-parameter warning */
+   if (!ctxt->lexical_error) {
+-    YYUSE(scanner);
+     if (loc->filename != NULL) {
+       append_error(ctxt, "%s:%d:%d: %s", loc->filename, loc->first_line, loc->first_column, msg);
+     } else {

pkgs/tools/security/nsjail/default.nix

@@ -0,0 +1,43 @@
+{ lib, stdenv, fetchFromGitHub, autoconf, bison, flex, libtool, pkg-config, which
+, libnl, protobuf, protobufc, shadow
+}:
+
+stdenv.mkDerivation rec {
+  pname = "nsjail";
+  version = "3.0"; # Bumping? Remove the bison patch.
+
+  src = fetchFromGitHub {
+    owner           = "google";
+    repo            = "nsjail";
+    rev             = version;
+    fetchSubmodules = true;
+    sha256          = "1w6x8xcrs0i1y3q41gyq8z3cq9x24qablklc4jiydf855lhqn4dh";
+  };
+
+  nativeBuildInputs = [ autoconf bison flex libtool pkg-config which ];
+  buildInputs = [ libnl protobuf protobufc ];
+  enableParallelBuilding = true;
+
+  patches = [
+    # To remove after bumping 3.0
+    ./001-fix-bison-link-error.patch
+  ];
+
+  preBuild = ''
+    makeFlagsArray+=(USER_DEFINES='-DNEWUIDMAP_PATH=${shadow}/bin/newuidmap -DNEWGIDMAP_PATH=${shadow}/bin/newgidmap')
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin $out/share/man/man1
+    install nsjail $out/bin/
+    install nsjail.1 $out/share/man/man1/
+  '';
+
+  meta = with lib; {
+    description = "A light-weight process isolation tool, making use of Linux namespaces and seccomp-bpf syscall filters";
+    homepage    = "http://nsjail.com/";
+    license     = licenses.asl20;
+    maintainers = with maintainers; [ arturcygan bosu c0bw3b ];
+    platforms   = platforms.linux;
+  };
+}