NAME

redo-ifcreate -- record dependencies

SYNOPSIS

redo-ifcreate {filenames...}

DESCRIPTION

redo-ifcreate is a dependency redcording utility that is run by a "do" script that is in turn invoked by redo.

redo-ifcreate records that the current target (whose "do" script is being run) depends from the dependencies named filenames. The dependency recorded is that the current target should be built if filenames is created. In other words, the target depends from the non-existence of the dependencies.

If a filename denotes a file or directory that exists at the time that the command is run, then redo-ifcreate exits with a failure status. If any of the dependencies are later created, the target will be considered out of date.

OPTIONS

redo-ifcreate supports the same command-line options, normally passed in environment variables rather than on the command line, and the same environment variables as redo-ifchange (q.v.). It also has the same caveats about clearing the environment and closing open file descriptors.

AUTHOR

Jonathan de Boyne Pollard