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-rw-r--r--src/rebar.erl8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/rebar.erl b/src/rebar.erl
index e84fb44..554278e 100644
--- a/src/rebar.erl
+++ b/src/rebar.erl
@@ -33,6 +33,14 @@
-include("rebar.hrl").
+-ifndef(BUILD_TIME).
+-define(BUILD_TIME, "undefined").
+-endif.
+
+-ifndef(VCS_INFO).
+-define(VCS_INFO, "undefined").
+-endif.
+
%% ====================================================================
%% Public API
%% ====================================================================