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/build-support/setup-hooks/compress-man-pages.sh

@@ -0,0 +1,33 @@
+fixupOutputHooks+=('if [ -z "${dontGzipMan-}" ]; then compressManPages "$prefix"; fi')
+
+compressManPages() {
+    local dir="$1"
+
+    if [ -L "$dir"/share ] || [ -L "$dir"/share/man ] || [ ! -d "$dir/share/man" ]
+        then return
+    fi
+    echo "gzipping man pages under $dir/share/man/"
+
+    # Compress all uncompressed manpages.  Don't follow symlinks, etc.
+    find "$dir"/share/man/ -type f -a '!' -regex '.*\.\(bz2\|gz\|xz\)$' -print0 \
+        | while IFS= read -r -d $'\0' f
+    do
+        if gzip -c -n "$f" > "$f".gz; then
+            rm "$f"
+        else
+            rm "$f".gz
+        fi
+    done
+
+    # Point symlinks to compressed manpages.
+    find "$dir"/share/man/ -type l -a '!' -regex '.*\.\(bz2\|gz\|xz\)$' -print0 \
+        | sort -z \
+        | while IFS= read -r -d $'\0' f
+    do
+        local target
+        target="$(readlink -f "$f")"
+        if [ -f "$target".gz ]; then
+            ln -sf "$target".gz "$f".gz && rm "$f"
+        fi
+    done
+}