LD_PRELOAD is an environment variable that specifies one or more libraries
that the run-time library loader (ld.so) will load in a new process before
loading other shared libraries. This is the hook used by electrify to allow
monitoring of file system updates and processes creation by any process that is
distributed to an agent for execution. If this variable is not set in the
child process, electrify will be unable to monitor the associated processs,
which may result in incorrect build results.
LD_PRELOAD environment variable (used to attach electrify monitoring code
to locally run processes) is undefined.
electrify automatically adds this variable to the root process invoked in an
electrify build (typically your build tool, like SCons or jam). If this message
is printed, then it means that process (or another process in the process tree)
has removed the
LD_PRELOAD variable from the environment before starting
another process. Usually this is a result of overly-aggressive management of
the environment block, such as creating the environment for child processes
completely from scratch using a list of known-to-be-required variables like
PATH; rather than explicitly removing just the
LD_PRELOAD variable itself.
Some build tools, like SCons, operate this way by default.