List crypto, compiler and syntax tools as dependencies, closes #2593

Author: José Valim

lib/elixir/src/elixir_compiler.erl

@@ -157,7 +157,7 @@ no_auto_import() ->
 %% CORE HANDLING
 
 core() ->
-  ok = application:ensure_started(elixir),
+  {ok, _} = application:ensure_all_started(elixir),
   elixir_code_server:cast({compiler_options, [{docs,false},{internal,true}]}),
   [core_file(File) || File <- core_main()].
 

lib/elixir/test/erlang/test_helper.erl

@@ -13,7 +13,7 @@
 ]).
 
 test() ->
-  application:start(elixir),
+  application:ensure_all_started(elixir),
   case eunit:test(?TESTS) of
     error -> erlang:halt(1);
     _Res  -> erlang:halt(0)

lib/mix/lib/mix/tasks/escript.build.ex

@@ -204,13 +204,13 @@ defmodule Mix.Tasks.Escript.Build do
         @app app
 
         def main(args) do
-          case :application.start(:elixir) do
-            :ok ->
+          case :application.ensure_all_started(:elixir) do
+            {:ok, _} ->
               start_app(@app)
               args = Enum.map(args, &List.to_string(&1))
               Kernel.CLI.run fn _ -> @module.main(args) end, true
             _   ->
-              io_error "Elixir is not in the code path, aborting."
+              io_error "Elixir is not available, aborting."
               System.halt(1)
           end
         end

src/elixir.app.src

@@ -5,7 +5,7 @@
 	elixir
   ]},
  {registered, [elixir_code_server]},
- {applications, [kernel,stdlib]},
+ {applications, [kernel,stdlib,crypto,compiler,syntax_tools]},
  {mod, {elixir,[]}},
  {env, [{uri, #{}}]}
 ]}.