If you use several levels of recursive make invocations, the
`-w' or `--print-directory' option can make the output a
lot easier to understand by showing each directory as make
starts processing it and as make finishes processing it. For
example, if `make -w' is run in the directory `/u/gnu/make',
make will print a line of the form:
make: Entering directory `/u/gnu/make'.
before doing anything else, and a line of the form:
make: Leaving directory `/u/gnu/make'.
when processing is completed.
Normally, you do not need to specify this option because `make'
does it for you: `-w' is turned on automatically when you use the
`-C' option, and in sub-makes. make will not
automatically turn on `-w' if you also use `-s', which says to
be silent, or if you use `--no-print-directory' to explicitly
disable it.
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