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/graphics/ldgallery/default.nix

@@ -0,0 +1,53 @@
+{ lib, pkgs, makeWrapper, haskellPackages, haskell, pandoc, imagemagick, CoreServices }:
+
+with lib;
+with haskell.lib.compose;
+
+let
+  ldgallery-viewer = pkgs.callPackage ./viewer { inherit CoreServices; };
+  inherit (haskellPackages) ldgallery-compiler;
+
+in
+
+# making sure that the versions of the compiler and viewer parts are in sync
+assert ldgallery-compiler.version == versions.majorMinor ldgallery-viewer.version;
+
+justStaticExecutables (overrideCabal (oldAttrs: {
+  pname = "ldgallery"; # bundled viewer + compiler
+
+  buildTools = (oldAttrs.buildTools or []) ++ [ makeWrapper pandoc ];
+
+  prePatch = ''
+    # add viewer dist to data
+    ln -s "${ldgallery-viewer}/share/ldgallery/viewer" "data/"
+
+    ${oldAttrs.prePatch or ""}
+  '';
+
+  postInstall = ''
+    ${oldAttrs.postInstall or ""}
+
+    # wrapper for runtime dependencies registration
+    wrapProgram "$out/bin/ldgallery" \
+      --prefix PATH : ${lib.makeBinPath [ imagemagick ]}
+
+    # bash completion
+    mkdir -p "$out/share/bash-completion/completions"
+    "$out/bin/ldgallery" \
+      --help=bash \
+      > "$out/share/bash-completion/completions/ldgallery"
+
+    # man pages
+    mkdir -p $out/share/man/man{1,7}
+    ln -s ${ldgallery-viewer}/share/man/man7/* "$out/share/man/man7/"
+    pandoc --standalone --to man \
+      "../ldgallery-quickstart.7.md" \
+      --output "$out/share/man/man7/ldgallery-quickstart.7"
+    pandoc --standalone --to man \
+      "ldgallery.1.md" \
+      --output "$out/share/man/man1/ldgallery.1"
+  '';
+
+  # other package metadata (maintainer, description, license, ...)
+  # are inherited from the compiler package
+}) ldgallery-compiler)