Add ERL_LIBS environment

1 files changed, 8 insertions, 0 deletions

diff --git a/src/rlx_prv_app_discover.erl b/src/rlx_prv_app_discover.erl
index eb40f38..a8a40ae 100644
--- a/src/rlx_prv_app_discover.erl
+++ b/src/rlx_prv_app_discover.erl
@@ -85,6 +85,7 @@ get_lib_dirs(State) ->
             lists:flatten([LibDirs0,
                            add_common_project_dirs(State),
                            add_system_lib_dir(State),
+                           add_environment_lib_dir(State),
                            OutputDir])
     end.
 
@@ -127,6 +128,13 @@ add_system_lib_dir(State) ->
             erlang:iolist_to_binary(SystemLibs)
     end.
 
+-spec add_environment_lib_dir(rlx_state:t()) -> [binary()].
+add_environment_lib_dir(_State) ->
+    case os:getenv("ERL_LIBS") of
+        false -> [];
+        Libs -> [erlang:iolist_to_binary(L) || L <- string:tokens(Libs, ":")]
+    end.
+
 %% Order matters so this slow dedup needs to be used
 dedup([]) ->
     [];