diff options
| -rw-r--r-- | src/libstore/build.cc | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 5ec4cbf66540..91156d313e2e 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -1066,12 +1066,8 @@ void DerivationGoal::haveDerivation() /* Reject doing a hash build of anything other than a fixed-output derivation. */ - if (buildMode == bmHash) { - if (drv->outputs.size() != 1 || - drv->outputs.find("out") == drv->outputs.end() || - drv->outputs["out"].hashAlgo == "") - throw Error(format("cannot do a hash build of non-fixed-output derivation ‘%1%’") % drvPath); - } + if (buildMode == bmHash && !drv->isFixedOutput()) + throw Error("cannot do a hash build of non-fixed-output derivation ‘%1%’", drvPath); /* We are first going to try to create the invalid output paths through substitutes. If that doesn't work, we'll build |