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The following switches are used by GNAT tools that support project files:
There must be only one -P switch on the command line.
Since the Project Manager parses the project file only after all the switches
on the command line are checked, the order of the switches
-P,
-vPx
or -X is not significant.
external(name)
when parsing the project file.
If name or value includes a space, then name=value should be put between quotes.
-XOS=NT -X"user=John Doe"
Several -X switches can be used simultaneously. If several -X switches specify the same name, only the last one is used.
An external variable specified with a -X switch
takes precedence over the value of the same name in the environment.
-vP0 means Default; -vP1 means Medium; -vP2 means High.
The default is Default: no output for syntactically correct
project files.
If several -vPx switches are present,
only the last one is used.