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/servers/x11/xorg/builder.sh

@@ -0,0 +1,40 @@
+# This is the builder for all X.org components.
+source $stdenv/setup
+
+
+# After installation, automatically add all "Requires" fields in the
+# pkgconfig files (*.pc) to the propagated build inputs.
+origPostInstall=$postInstall
+postInstall() {
+    if test -n "$origPostInstall"; then eval "$origPostInstall"; fi
+
+    local r p requires
+    set +o pipefail
+    requires=$(grep "Requires:" ${!outputDev}/lib/pkgconfig/*.pc | \
+        sed "s/Requires://" | sed "s/,/ /g")
+    set -o pipefail
+
+    echo "propagating requisites $requires"
+
+    for r in $requires; do
+        for p in "${pkgsHostHost[@]}" "${pkgsHostTarget[@]}"; do
+            if test -e $p/lib/pkgconfig/$r.pc; then
+                echo "  found requisite $r in $p"
+                propagatedBuildInputs+=" $p"
+            fi
+        done
+    done
+}
+
+
+installFlags="appdefaultdir=$out/share/X11/app-defaults $installFlags"
+
+
+if test -n "$x11BuildHook"; then
+    source $x11BuildHook
+fi
+
+
+enableParallelBuilding=1
+
+genericBuild