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/doas/0001-add-NixOS-specific-dirs-to-safe-PATH.patch

@@ -0,0 +1,24 @@
+From 9218347b8f833ab05d016dfba5617dcdeb59eb7b Mon Sep 17 00:00:00 2001
+From: Cole Helbling <cole.e.helbling@outlook.com>
+Date: Wed, 27 May 2020 08:02:57 -0700
+Subject: [PATCH] add NixOS-specific dirs to safe PATH
+
+---
+ doas.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/doas.c b/doas.c
+index e253905..2fdb20f 100644
+--- a/doas.c
++++ b/doas.c
+@@ -234,6 +234,7 @@ int
+ main(int argc, char **argv)
+ {
+ 	const char *safepath = "/bin:/sbin:/usr/bin:/usr/sbin:"
++	    "/run/wrappers/bin:/run/current-system/sw/bin:/run/current-system/sw/sbin:"
+ 	    "/usr/local/bin:/usr/local/sbin";
+ 	const char *confpath = NULL;
+ 	char *shargv[] = { NULL, NULL };
+-- 
+2.26.2
+

pkgs/tools/security/doas/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, bison
+, pam
+
+, withPAM ? true
+, withTimestamp ? true
+}:
+
+stdenv.mkDerivation rec {
+  pname = "doas";
+  version = "6.8.2";
+
+  src = fetchFromGitHub {
+    owner = "Duncaen";
+    repo = "OpenDoas";
+    rev = "v${version}";
+    sha256 = "9uOQ2Ta5HzEpbCz2vbqZEEksPuIjL8lvmfmynfqxMeM=";
+  };
+
+  # otherwise confuses ./configure
+  dontDisableStatic = true;
+
+  configureFlags = [
+    (lib.optionalString withTimestamp "--with-timestamp") # to allow the "persist" setting
+    (lib.optionalString (!withPAM) "--without-pam")
+  ];
+
+  patches = [
+    # Allow doas to discover binaries in /run/current-system/sw/{s,}bin and
+    # /run/wrappers/bin
+    ./0001-add-NixOS-specific-dirs-to-safe-PATH.patch
+  ];
+
+  postPatch = ''
+    sed -i '/\(chown\|chmod\)/d' GNUmakefile
+  '';
+
+  nativeBuildInputs = [ bison ];
+  buildInputs = [ pam ];
+
+  meta = with lib; {
+    description = "Executes the given command as another user";
+    homepage = "https://github.com/Duncaen/OpenDoas";
+    license = licenses.isc;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ cole-h cstrahan ];
+  };
+}