gdk: add 'gl' feature

Signed-off-by: Marc-André Lureau <[email protected]>

Author: elmarco

gdk4/Cargo.toml

@@ -21,6 +21,7 @@ v4_6 = ["ffi/v4_6", "v4_4"]
 v4_8 = ["ffi/v4_8", "v4_6"]
 v4_10 = ["ffi/v4_10", "v4_8"]
 v4_12 = ["ffi/v4_12", "v4_10"]
+gl = ["dep:gl"]
 
 [package.metadata.docs.rs]
 all-features = true
@@ -35,6 +36,7 @@ gio = {git = "https://github.com/gtk-rs/gtk-rs-core", version = "0.18", features
 glib = {git = "https://github.com/gtk-rs/gtk-rs-core", version = "0.18", features = ["v2_66"]}
 libc = "0.2"
 pango = {git = "https://github.com/gtk-rs/gtk-rs-core", version = "0.18", features = ["v1_46"]}
+gl = {version = "0.14", optional = true}
 
 [dev-dependencies]
 gir-format-check = "^0.1"

gdk4/README.md

@@ -46,6 +46,7 @@ gdk = { git = "https://github.com/gtk-rs/gtk4-rs.git", package = "gdk4" }
 | `v4_6` | Enable the new APIs part of GTK 4.6 |
 | `v4_4` | Enable the new APIs part of GTK 4.4 |
 | `v4_2` | Enable the new APIs part of GTK 4.2 |
+| `gl` | Integration with the [gl](https://crates.io/crates/gl) crate |
 
 ### See Also
 

gdk4/src/lib.rs

@@ -7,6 +7,9 @@ pub use cairo;
 pub use ffi;
 pub use gdk_pixbuf;
 pub use gio;
+#[cfg(any(feature = "gl", docsrs))]
+#[cfg_attr(docsrs, doc(cfg(feature = "gl")))]
+pub use gl;
 pub use glib;
 pub use pango;