nickva commented on a change in pull request #3422:
URL: https://github.com/apache/couchdb/pull/3422#discussion_r593935304
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File path: rebar.config.script
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@@ -92,6 +92,9 @@ case VerList of
_ -> ok
end.
+[OptMajorVersion|_] = VerList.
+OtpMajorVersion20 = case OptMajorVersion of 20 -> "true"; _ -> "false" end.
+os:putenv("COUCHDB_OTP_MAJOR_VERSION_20", OtpMajorVersion20).
Review comment:
If we only need to check this in Erlang code, we can rely on
`OTP_RELEASE` directly:
https://erlang.org/doc/reference_manual/macros.html#predefined-macros
https://github.com/apache/couchdb/blob/00811b4a9c4df56defb7456431d44abb7c0baa79/src/fabric/src/fabric2_util.erl#L386-L387
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