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# Pkgconfig module
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This module is a simple generator for
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[pkg-config](https://pkg-config.freedesktop.org/) files.
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## Usage
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To use this module, just do: **`pkg = import('pkgconfig')`**. The
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following function will then be available as `pkg.generate()`. You
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can, of course, replace the name `pkg` with anything else.
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### pkg.generate()
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The generated file's properties are specified with the following
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keyword arguments.
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- `description` a string describing the library
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- `extra_cflags` a list of extra compiler flags to be added to the
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`Cflags` field after the header search path
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- `filebase`, the base name to use for the pkg-config file, as an
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example the value of `libfoo` would produce a pkg-config file called
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`libfoo.pc`
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- `install_dir` the directory to install to, defaults to the value of
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option `libdir` followed by `/pkgconfig`
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- `libraries` a list of built libraries (usually results of
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shared_library) that the user needs to link against. Arbitraty strings can
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also be provided and they will be added into the `Libs` field. Since 0.45.0
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dependencies of built libraries will be automatically added to `Libs.private`
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field. If a dependency is provided by pkg-config then it will be added in
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`Requires.private` instead. Other type of dependency objects can also be passed
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and will result in their `link_args` and `compile_args` to be added to `Libs`
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and `Cflags` fields.
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- `libraries_private` list of built libraries or strings to put in the
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`Libs.private` field. Since 0.45.0 it can also contain dependency objects,
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their `link_args` will be added to `Libs.private`.
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- `name` the name of this library
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- `subdirs` which subdirs of `include` should be added to the header
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search path, for example if you install headers into
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`${PREFIX}/include/foobar-1`, the correct value for this argument
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would be `foobar-1`
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- `requires` list of strings, pkgconfig-dependencies or libraries that
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`pkgconfig.generate()` was used on to put in the `Requires` field
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- `requires_private` same as `requires` but for `Requires.private` field
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field
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- `url` a string with a url for the library
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- `variables` a list of strings with custom variables to add to the
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generated file. The strings must be in the form `name=value` and may
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reference other pkgconfig variables,
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e.g. `datadir=${prefix}/share`. The names `prefix`, `libdir` and
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`installdir` are reserved and may not be used.
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- `version` a string describing the version of this library
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- `d_module_versions` a list of module version flags used when compiling
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D sources referred to by this pkg-config file
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Since 0.46 a `StaticLibrary` or `SharedLibrary` object can optionally be passed
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as first positional argument. If one is provided a default value will be
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provided for all required fields of the pc file:
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- `install_dir` is set to `pkgconfig` folder in the same location than the provided library.
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- `description` is set to the project's name followed by the library's name.
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- `name` is set to the library's name.
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