diff options
Diffstat (limited to 'nix/libstore/builtins.cc')
| -rw-r--r-- | nix/libstore/builtins.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/nix/libstore/builtins.cc b/nix/libstore/builtins.cc index a5ebb47737..1f52511c80 100644 --- a/nix/libstore/builtins.cc +++ b/nix/libstore/builtins.cc @@ -1,5 +1,5 @@ /* GNU Guix --- Functional package management for GNU - Copyright (C) 2016, 2017 Ludovic Courtès <ludo@gnu.org> + Copyright (C) 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org> This file is part of GNU Guix. @@ -47,6 +47,9 @@ static void builtinDownload(const Derivation &drv, content-addressed mirrors) works correctly. */ setenv("NIX_STORE", settings.nixStore.c_str(), 1); + /* Tell it about options such as "print-extended-build-trace". */ + setenv("_NIX_OPTIONS", settings.pack().c_str(), 1); + /* XXX: Hack our way to use the 'download' script from 'LIBEXECDIR/guix' or just 'LIBEXECDIR', depending on whether we're running uninstalled or not. */ |