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-rw-r--r--lib/compiler/src/rec_env.erl11
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/compiler/src/rec_env.erl b/lib/compiler/src/rec_env.erl
index 0e9e12d1ad..5a4a870769 100644
--- a/lib/compiler/src/rec_env.erl
+++ b/lib/compiler/src/rec_env.erl
@@ -598,7 +598,16 @@ start_range(Env) ->
%% (pseudo-)randomly distributed over the range.
generate(_N, Range) ->
- random:uniform(Range). % works well
+ %% We must use the same sequence of random variables to ensure
+ %% that two compilations of the same source code generates the
+ %% same BEAM code.
+ case rand:export_seed() of
+ undefined ->
+ rand:seed(exsplus, {1,42,2053});
+ _ ->
+ ok
+ end,
+ rand:uniform(Range). % works well
%% =====================================================================