The Meson Build System
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33 lines
892 B
33 lines
892 B
7 years ago
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## Feature detection based on meson_version in project()
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Meson will now print a `WARNING:` message during configuration if you use
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a function or a keyword argument that was added in a meson version that's newer
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than the version specified inside `project()`. For example:
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```meson
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project('featurenew', meson_version: '>=0.43')
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cdata = configuration_data()
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cdata.set('FOO', 'bar')
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message(cdata.get_unquoted('FOO'))
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```
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This will output:
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```
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The Meson build system
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Version: 0.47.0.dev1
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Source dir: C:\path\to\srctree
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Build dir: C:\path\to\buildtree
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Build type: native build
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Project name: featurenew
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Project version: undefined
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Build machine cpu family: x86_64
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Build machine cpu: x86_64
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WARNING: Project targetting '>=0.43' but tried to use feature introduced in '0.44.0': get_unquoted
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Message: bar
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Build targets in project: 0
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Minimum version of features used:
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0.44.0: {'get_unquoted'}
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```
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