deduplicate proot for device and proot for fakedroid

pkgs/cross-compiling/proot-termux.nix

@@ -1,36 +1,15 @@
 # Copyright (c) 2019-2021, see AUTHORS. Licensed under MIT License, see LICENSE.
 
-{ callPackage, fetchFromGitHub, tallocStatic }:
+{ callPackage, tallocStatic }:
 
 let
   pkgsCross = callPackage ./cross-pkgs.nix { };
 
   stdenv = pkgsCross.pkgsStatic.stdenvAdapters.makeStaticBinaries pkgsCross.stdenv;
+
 in
-
-stdenv.mkDerivation {
-  pname = "proot-termux";
-  version = "unstable-2021-11-21";
-
-  src = fetchFromGitHub {
-    repo = "proot";
-    owner = "termux";
-    rev = "7d6bdd9f6cf31144e11ce65648dab2a1e495a7de";
-    sha256 = "sha256-sbueMoqhOw0eChgp6KOZbhwRnSmDZhHq+jm06mGqxC4=";
-
-    # 1 step behind 6f12fbee "Implement shmat", use if ashmem.h is missing
-    #rev = "ffd811ee726c62094477ed335de89fc107cadf17";
-    #sha256 = "1zjblclsybvsrjmq2i0z6prhka268f0609w08dh9vdrbrng117f8";
-
-  };
-
-  buildInputs = [ tallocStatic ];
-
-  patches = [ ./proot-detranslate-empty.patch ];
-
-  makeFlags = [ "-Csrc" "V=1" ];
-
-  installPhase = ''
-    install -D -m 0755 src/proot $out/bin/proot-static
-  '';
-}
+  callPackage ../proot-termux {
+    pkgs = pkgsCross;
+    talloc = tallocStatic;
+    inherit stdenv;
+  }

pkgs/proot-termux/default.nix

@@ -0,0 +1,31 @@
+# Copyright (c) 2019-2021, see AUTHORS. Licensed under MIT License, see LICENSE.
+
+{ pkgs, stdenv, callPackage, fetchFromGitHub,
+  talloc, outputBinaryName ? "proot-static" }:
+
+stdenv.mkDerivation {
+  pname = "proot-termux";
+  version = "unstable-2021-11-21";
+
+  src = fetchFromGitHub {
+    repo = "proot";
+    owner = "termux";
+    rev = "7d6bdd9f6cf31144e11ce65648dab2a1e495a7de";
+    sha256 = "sha256-sbueMoqhOw0eChgp6KOZbhwRnSmDZhHq+jm06mGqxC4=";
+
+    # 1 step behind 6f12fbee "Implement shmat", use if ashmem.h is missing
+    #rev = "ffd811ee726c62094477ed335de89fc107cadf17";
+    #sha256 = "1zjblclsybvsrjmq2i0z6prhka268f0609w08dh9vdrbrng117f8";
+  };
+
+  buildInputs = [ talloc ];
+
+  patches = [ ./detranslate-empty.patch ];
+
+  makeFlags = [ "-Csrc" "V=1" ];
+  CFLAGS = [ "-O3" ];
+
+  installPhase = ''
+    install -D -m 0755 src/proot $out/bin/${outputBinaryName}
+  '';
+}