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Merge #21655: build, qt: No longer need to set QT_RCC_TEST=1 for determinism

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c799a19b4bb8d0cc5ffd9b49746b5b267745c9b5 build, qt: No longer need to set QT_RCC_TEST=1 for determinism (Hennadii Stepanov)

Pull request description:

  The Qt Resource Compiler (rcc) output order relies on [`QHash`](https://doc.qt.io/qt-5/qhash.html):
  > This randomization of `QHash` is enabled by default. Even though programs should never depend on a particular `QHash` ordering, there may be situations where you temporarily need deterministic behavior, for example for debugging or regression testing. To disable the randomization, define the environment variable `QT_HASH_SEED` to have the value 0.

  Since #3620 we use `QT_RCC_TEST=1` to achieve a deterministic output.

  Since Qt 5.3.1 hash seeding is disabled for all of the bootstrapped tools, including rcc. Therefore, `QT_RCC_TEST=1` is no longer needed.
  See commit [5283a6c87beac5a43f612786fefd6e43f2c70bf6](5283a6c87b).

ACKs for top commit:
  fanquake:
    ACK c799a19b4bb8d0cc5ffd9b49746b5b267745c9b5

Tree-SHA512: 9d116ac1e8c605ee3e8ed7f618586f0de85d8b06bbbb70fe8c298939ce203d2a7e97264a9afac037179993ab54c5f69a65ebb9ab27ca7f45acb963011bd45743
This commit is contained in:
fanquake 2021-04-21 15:09:47 +08:00 committed by PastaPastaPasta
parent 6c46d02157
commit c62a180d2d
1 changed files with 0 additions and 1 deletions
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contrib/guix/libexec/build.sh
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@ -175,7 +175,6 @@ case "$HOST" in
esac
# Environment variables for determinism
export QT_RCC_TEST=1
export QT_RCC_SOURCE_DATE_OVERRIDE=1
export TAR_OPTIONS="--owner=0 --group=0 --numeric-owner --mtime='@${SOURCE_DATE_EPOCH}' --sort=name"
export TZ="UTC"