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user guide: document -F command-line flag

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Josh Holtrop 2019-07-09 22:19:10 -04:00
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doc/user_guide.md
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@ -149,6 +149,17 @@ been performed, a `configure` operation will be automatically invoked.
The `build` operation will execute all builders registered to produce build
targets.
If a `build` operation fails (e.g. due to a compilation failure), Rscons will
log the failed commands.
By default Rscons does not print the failed commands to the console so that it
is easier for the user to focus on the actual compiler failure messages rather
than the compilation command itself.
However, if the user wishes to see the compilation commands, rscons can be
invoked with the `-v` command-line option to show all complilation commands
while building, or, alternatively, following a compilation failure, the user
can invoke rscons with the -F option which will not rebuild but will show the
failed command log from the previous build operation.
##> Clean Operation
A `clean` operation will remove all built target files.