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## Project options can be set in native or cross files
A new set of sections has been added to the cross and native files, `[project
options]` and `[<subproject_name>:project options]`, where `subproject_name`
is the name of a subproject. Any options that are allowed in the project can
be set from this section. They have the lowest precedent, and will be
overwritten by command line arguments.
```meson
option('foo', type : 'string', value : 'foo')
```
```ini
[project options]
foo = 'other val'
```
```console
meson build --native-file my.ini
```
Will result in the option foo having the value `other val`,
```console
meson build --native-file my.ini -Dfoo='different val'
```
Will result in the option foo having the value `different val`,
Subproject options are assigned like this:
```ini
[zlib:project options]
foo = 'some val'
```
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