thread 'main' panicked at 'Package name doesn't exist'

[SelectSweet]

Hello, Ive been trying to generate a Gegl binding by following the tutorial on the website but Ive run into an issue that is similar to this one where the compiler panics about something to do with options

Error output:

[ERROR libgir::library_postprocessing] Field `BufferIterator::items` is missing c:type
[ERROR libgir::library_postprocessing] Field `Lookup::table` is missing c:type
[WARN  libgir::library_postprocessing] Field `AudioFragment::data` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `BufferMatrix2::coeff` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `Lookup::bitmask` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `Matrix3::coeff` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `PathItem::point` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `TileSource::padding` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `TileSourceClass::padding` missing c:type assumed to be `fixed_array`
[WARN  libgir::library_postprocessing] Field `TileBackendClass::padding` missing c:type assumed to be `fixed_array`
thread 'main' panicked at 'Package name doesn't exist', src/libcore/option.rs:1185:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

Gir.toml

[options]
library = "Gegl"
version = "0.4"
target_path = "."
min_cfg_version = "0.4"
work_mode = "sys"
girs_dir = "gir-files/"

external_libraries = [
    "GLib",
    "GObject",
    "Babl",
]

[EPashkin]

@SelectSweet Thanks for report. Can you provide your Gegl.gir, seems it don't have package tag? Paniced this part of code

        ns.package_name
            .as_ref()
            .expect("Package name doesn't exist")

[SelectSweet]

Here is my Gegl.gir

https://gist.github.com/SelectSweet/ea812d1e8cbfd138b08a56e56762af68

[EPashkin]

Try adding package tag:

<include name="GObject" version="2.0"/>
<package name="gegl"/>
<c:include name="gegl.h"/>

[EPashkin]

This not work without "babl-0.1.gir" 😢

[EPashkin]

https://github.com/nemequ/vala-girs/blob/master/gir-1.0/Babl-0.1.gir works after adding package

  <package name="babl"/>
  <c:include name="babl.h"/>

[sdroege]

This is a bug in the build system of the C library, it should provide the name of the pkg-config package when calling the gobject-introspection tools.

[SelectSweet]

i thought this might have been the case as it outputted a pkg-config error after i added the bits suggested, changing the name value to the gegl pkg-config name fixed the problem

<package name="gegl-0.4"/>
<c:include name="gegl.h"/>

[SelectSweet]

thank you, for the assistance