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/development/libraries/libpwquality/default.nix

@@ -0,0 +1,57 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, autoreconfHook
+, perl
+, cracklib
+, enablePAM ? stdenv.hostPlatform.isLinux
+, pam
+, enablePython ? false
+, python
+}:
+
+# python binding generates a shared library which are unavailable with musl build
+assert enablePython -> !stdenv.hostPlatform.isStatic;
+
+stdenv.mkDerivation rec {
+  pname = "libpwquality";
+  version = "1.4.4";
+
+  outputs = [ "out" "dev" "lib" "man" ] ++ lib.optionals enablePython [ "py" ];
+
+  src = fetchFromGitHub {
+    owner = "libpwquality";
+    repo = "libpwquality";
+    rev = "${pname}-${version}";
+    sha256 = "sha256-7gAzrx5VP1fEBwAt6E5zGM8GyuPRR+JxYifYfirY+U8=";
+  };
+
+  patches = [
+    # ensure python site-packages goes in $py output
+    ./python-binding-prefix.patch
+  ];
+
+  nativeBuildInputs = [ autoreconfHook perl ] ++ lib.optionals enablePython [ python ];
+  buildInputs = [ cracklib ] ++ lib.optionals enablePAM [ pam ];
+
+  configureFlags = lib.optionals (!enablePython) [ "--disable-python-bindings" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/libpwquality/libpwquality";
+    description = "Password quality checking and random password generation library";
+    longDescription = ''
+      The libpwquality library purpose is to provide common functions for
+      password quality checking and also scoring them based on their apparent
+      randomness. The library also provides a function for generating random
+      passwords with good pronounceability. The library supports reading and
+      parsing of a configuration file.
+
+      In the package there are also very simple utilities that use the library
+      function and PAM module that can be used instead of pam_cracklib. The
+      module supports all the options of pam_cracklib.
+    '';
+    license = with licenses; [ bsd3 /* or */ gpl2Plus ];
+    maintainers = with maintainers; [ jk ];
+    platforms = platforms.unix;
+  };
+}

pkgs/development/libraries/libpwquality/python-binding-prefix.patch

@@ -0,0 +1,13 @@
+diff --git a/python/Makefile.am b/python/Makefile.am
+index 1d00c0c..0987690 100644
+--- a/python/Makefile.am
++++ b/python/Makefile.am
+@@ -14,7 +14,7 @@ all-local:
+ 	CFLAGS="${CFLAGS} -fno-strict-aliasing" @PYTHONBINARY@ setup.py build --build-base py$(PYTHONREV)
+ 
+ install-exec-local:
+-	CFLAGS="${CFLAGS} -fno-strict-aliasing" @PYTHONBINARY@ setup.py build --build-base py$(PYTHONREV) install --prefix=${DESTDIR}${prefix}
++	CFLAGS="${CFLAGS} -fno-strict-aliasing" @PYTHONBINARY@ setup.py build --build-base py$(PYTHONREV) install --prefix=${DESTDIR}${py}
+ 
+ clean-local:
+ 	rm -rf py$(PYTHONREV)