bd9c7f9b2c
Add policy CMP0058 to avoid generating 'phony' ninja rules for unknown custom command dependencies. This requires projects to specify their custom command byproducts explicitly. With this requirement we no longer have to assume that unknown custom command dependencies are generated and can instead simply assume they are source files expected to exist when the build starts. This is particularly important in in-source builds. It is also helpful for out-of-source builds to allow Ninja to diagnose missing files before running custom command rules that depend on them.
20 lines
812 B
Plaintext
20 lines
812 B
Plaintext
^CMake Warning \(dev\):
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Policy CMP0058 is not set: Ninja requires custom command byproducts to be
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explicit. Run "cmake --help-policy CMP0058" for policy details. Use the
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cmake_policy command to set the policy and suppress this warning.
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This project specifies custom command DEPENDS on files in the build tree
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that are not specified as the OUTPUT or BYPRODUCTS of any
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add_custom_command or add_custom_target:
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byproduct1a
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byproduct1b
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For compatibility with versions of CMake that did not have the BYPRODUCTS
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option, CMake is generating phony rules for such files to convince 'ninja'
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to build.
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Project authors should add the missing BYPRODUCTS or OUTPUT options to the
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custom commands that produce these files.
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This warning is for project developers. Use -Wno-dev to suppress it.
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