all: remove extern_types feature

src/libinput/sys.rs

@@ -9,14 +9,19 @@ pub type libinput_log_handler = unsafe extern "C" fn(
     args: VaList,
 );
 
+#[repr(transparent)]
+pub struct libinput(u8);
+#[repr(transparent)]
+pub struct libinput_device(u8);
+#[repr(transparent)]
+pub struct libinput_event(u8);
+#[repr(transparent)]
+pub struct libinput_event_keyboard(u8);
+#[repr(transparent)]
+pub struct libinput_event_pointer(u8);
+
 #[link(name = "input")]
 extern "C" {
-    pub type libinput;
-    pub type libinput_device;
-    pub type libinput_event;
-    pub type libinput_event_keyboard;
-    pub type libinput_event_pointer;
-
     pub fn libinput_log_set_handler(libinput: *mut libinput, log_handler: libinput_log_handler);
     pub fn libinput_log_set_priority(libinput: *mut libinput, priority: libinput_log_priority);
     pub fn libinput_path_create_context(

src/main.rs

@@ -1,7 +1,6 @@
 #![feature(
     c_variadic, // https://github.com/rust-lang/rust/issues/44930
     thread_local, // https://github.com/rust-lang/rust/issues/29594
-    extern_types, // https://github.com/rust-lang/rust/issues/43467
     c_str_literals, // https://github.com/rust-lang/rust/issues/105723
 )]
 #![allow(

src/pango.rs

@@ -14,11 +14,13 @@ pub mod consts;
 
 include!(concat!(env!("OUT_DIR"), "/pango_tys.rs"));
 
+#[repr(transparent)]
+struct cairo_surface_t(u8);
+#[repr(transparent)]
+struct cairo_t(u8);
+
 #[link(name = "cairo")]
 extern "C" {
-    type cairo_surface_t;
-    type cairo_t;
-
     fn cairo_image_surface_create(
         format: cairo_format_t,
         width: c::c_int,
@@ -41,26 +43,30 @@ extern "C" {
     fn cairo_move_to(cr: *mut cairo_t, x: f64, y: f64);
 }
 
+#[repr(transparent)]
+struct PangoContext_(u8);
+
 #[link(name = "pangocairo-1.0")]
 extern "C" {
-    type PangoContext_;
-
     fn pango_cairo_create_context(cr: *mut cairo_t) -> *mut PangoContext_;
     fn pango_cairo_show_layout(cr: *mut cairo_t, layout: *mut PangoLayout_);
 }
 
+#[repr(transparent)]
+struct GObject(u8);
+
 #[link(name = "gobject-2.0")]
 extern "C" {
-    type GObject;
-
     fn g_object_unref(object: *mut GObject);
 }
 
+#[repr(transparent)]
+struct PangoFontDescription_(u8);
+#[repr(transparent)]
+struct PangoLayout_(u8);
+
 #[link(name = "pango-1.0")]
 extern "C" {
-    type PangoFontDescription_;
-    type PangoLayout_;
-
     fn pango_font_description_from_string(str: *const c::c_char) -> *mut PangoFontDescription_;
     fn pango_font_description_free(desc: *mut PangoFontDescription_);
     fn pango_font_description_get_size(desc: *mut PangoFontDescription_) -> c::c_int;

src/udev.rs

@@ -1,3 +1,5 @@
+#![allow(non_camel_case_types)]
+
 use {
     crate::utils::oserror::OsError,
     std::{ffi::CStr, marker::PhantomData, ptr, rc::Rc},
@@ -5,14 +7,19 @@ use {
     uapi::{c, ustr, Errno, IntoUstr, Ustr},
 };
 
+#[repr(transparent)]
+struct udev(u8);
+#[repr(transparent)]
+struct udev_monitor(u8);
+#[repr(transparent)]
+struct udev_enumerate(u8);
+#[repr(transparent)]
+struct udev_list_entry(u8);
+#[repr(transparent)]
+struct udev_device(u8);
+
 #[link(name = "udev")]
 extern "C" {
-    type udev;
-    type udev_monitor;
-    type udev_enumerate;
-    type udev_list_entry;
-    type udev_device;
-
     fn udev_new() -> *mut udev;
     fn udev_unref(udev: *mut udev) -> *mut udev;