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Diffstat (limited to 'lib/compiler/src/rec_env.erl')
| -rw-r--r-- | lib/compiler/src/rec_env.erl | 11 |
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 %% ===================================================================== |