Aaron Turner wrote:
Whoops, my bad. Typed "add_custom_target" not "add_custom_command".
Thanks everyone, this makes sense now.
To answer the original question, the best way to generate a bunch of things
only when the users asks is to use add_custom_command to create the rules
and then associate them with a top-level target using add_custom_target:
add_custom_command(
OUTPUT myfile.txt
COMMAND ... # command to generate myfile.txt here
DEPENDS ... # file-level depends here
)
add_custom_target(test_standard DEPENDS myfile.txt)
When add_custom_target is not given the ALL option, it will not build unless
the user explicitly requests it with "make test_standard". Then the custom
commands it drives will still have normal dependencies to only rebuild when
necessary.
-Brad
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