Call earlier deps configure scripts durring compilation

plugins/override_opts.erl

@@ -0,0 +1,32 @@
+-module(override_opts).
+-export([preprocess/2]).
+
+override_opts(override, Config, Opts) ->
+    lists:foldl(fun({Opt, Value}, Conf) ->
+			rebar_config:set(Conf, Opt, Value)
+		end, Config, Opts);
+override_opts(add, Config, Opts) ->
+    lists:foldl(fun({Opt, Value}, Conf) ->
+			V = rebar_config:get_local(Conf, Opt, []),
+			rebar_config:set(Conf, Opt, [Value | V])
+		end, Config, Opts).
+
+preprocess(Config, _Dirs) ->
+    Overrides = rebar_config:get_local(Config, overrides, []),
+    TopOverrides = case rebar_config:get_xconf(Config, top_overrides, []) of
+		  [] -> Overrides;
+		  Val -> Val
+	      end,
+    Config2 = rebar_config:set_xconf(Config, top_overrides, TopOverrides),
+    Config3 = case rebar_app_utils:load_app_file(Config2, _Dirs) of
+		  {ok, C, AppName, _AppData} ->
+		      lists:foldl(fun({Type, AppName2, Opts}, Conf1) when
+					    AppName2 == AppName ->
+					  override_opts(Type, Conf1, Opts);
+				     (_, Conf2) ->
+					  Conf2
+				  end, C, TopOverrides);
+		  _ ->
+		      Config2
+    end,
+    {ok, Config3, []}.

rebar.config

@@ -107,7 +107,7 @@
 
 {if_rebar3, {plugins, [rebar3_hex, {provider_asn1, "0.2.0"}]}}.
 {if_not_rebar3, {plugins, [
-			   deps_erl_opts, override_deps_versions,
+			   deps_erl_opts, override_deps_versions, override_opts,
 			   {if_var_true, elixir, rebar_elixir_compiler},
 			   {if_var_true, elixir, rebar_exunit}
 			  ]}}.
@@ -163,7 +163,6 @@
 {port_env, [{"CFLAGS", "-g -O2 -Wall"}]}.
 
 {port_specs, [{"priv/lib/jid.so", ["c_src/jid.c"]}]}.
-
 %% Local Variables:
 %% mode: erlang
 %% End:

rebar.config.script

@@ -255,9 +255,9 @@ CtParams = fun(CompileOpts) ->
 
 GenDepConfigureLine =
 fun(DepPath, Flags) ->
-	["sh -c 'if test ! -f ",DepPath,"config.status -o ",
+	["sh -c 'if test ! -f config.status -o ",
-	 "config.status -nt ",DepPath,"config.status; ",
+	 "../../config.status -nt config.status; ",
-	 "then (cd ", DepPath, " && ",
+	 "then (",
 	 "CFLAGS=\"", CFlags,"\" ",
 	 "CPPFLAGS=\"", CPPFlags, "\" "
 	 "LDFLAGS=\"", LDFlags, "\"",
@@ -269,8 +269,8 @@ GenDepsConfigure =
 fun(Hooks) ->
 	lists:map(fun({Pkg, Flags}) ->
 			  DepPath = ResolveDepPath("deps/" ++ Pkg ++ "/"),
-			  {'compile',
+			  {add, list_to_atom(Pkg), [{pre_hooks, {'compile',
-			   lists:flatten(GenDepConfigureLine(DepPath, Flags))}
+			   lists:flatten(GenDepConfigureLine(DepPath, Flags))}}]}
 		  end, Hooks)
 end,
 
@@ -326,7 +326,7 @@ Rules = [
 	  AppendList([{coveralls, ".*", {git, "https://github.com/markusn/coveralls-erl.git", "master"}}]), []},
 	 {[post_hooks], [cover_enabled], os:getenv("TRAVIS") == "true",
 	  AppendList2(TravisPostHooks), [], false},
-	 {[pre_hooks], [post_hook_configure], true,
+	 {[overrides], [post_hook_configure], true,
 	  AppendList2(GenDepsConfigure), [], []},
 	 {[ct_extra_params], [eunit_compile_opts], true,
 	  AppendStr2(CtParams), "", []},