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* Add an option ‘build-use-substitutes’, which can be set to ‘false’

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to disable use of substitutes; i.e., force building from source.
  Fixes Nix/221.
This commit is contained in:
Eelco Dolstra 2012-04-30 19:15:34 -04:00
parent 59a26360c7
commit db5b86ef13
6 changed files with 23 additions and 4 deletions
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2
src/libstore/build.cc
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@ -962,7 +962,7 @@ void DerivationGoal::haveDerivation()
foreach (PathSet::iterator, i, invalidOutputs)
/* Don't bother creating a substitution goal if there are no
substitutes. */
if (worker.store.hasSubstitutes(*i))
if (queryBoolSetting("build-use-substitutes", true) && worker.store.hasSubstitutes(*i))
addWaitee(worker.makeSubstitutionGoal(*i));
if (waitees.empty()) /* to prevent hang (no wake-up event) */