diff options
Diffstat (limited to 'src/libstore/build/hook-instance.cc')
| -rw-r--r-- | src/libstore/build/hook-instance.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libstore/build/hook-instance.cc b/src/libstore/build/hook-instance.cc index ea2ae210e..075ad554f 100644 --- a/src/libstore/build/hook-instance.cc +++ b/src/libstore/build/hook-instance.cc @@ -35,7 +35,10 @@ HookInstance::HookInstance() /* Fork the hook. */ pid = startProcess([&]() { - commonChildInit(fromHook.writeSide.get()); + if (dup2(fromHook.writeSide.get(), STDERR_FILENO) == -1) + throw SysError("cannot pipe standard error into log file"); + + commonChildInit(); if (chdir("/") == -1) throw SysError("changing into /"); |