diff options
| -rw-r--r-- | src/libexpr/primops.cc | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 5aefa5b411b0..835a3217f3b0 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -181,7 +181,12 @@ Expr primDerivation(EvalState & state, Expr args) startNest(nest, lvlVomit, format("processing attribute `%1%'") % key); Strings ss; - processBinding(state, value, ne, ss); + try { + processBinding(state, value, ne, ss); + } catch (Error & e) { + throw Error(format("while processing derivation binding `%1%': %2%") + % key % e.msg()); + } /* The `args' attribute is special: it supplies the command-line arguments to the builder. */ |