remove sokol_imgui.h bindings, example and cimgui submodule

.github/workflows/main.yml

@@ -13,8 +13,6 @@ jobs:
     runs-on: ${{matrix.os}}
     steps:
       - uses: actions/checkout@v4
-        with:
-            submodules: recursive
       - name: setup-rust
         uses: dtolnay/rust-toolchain@master
         with:

.gitmodules

@@ -1,4 +0,0 @@
-[submodule "src/sokol/c/cimgui"]
-	path = src/sokol/c/cimgui
-	url = https://github.com/cimgui/cimgui.git
-	shallow = true

README.md

@@ -104,13 +104,9 @@ cargo run --example instancing
 cargo run --example userdata
 ```
 
->NOTE: The imgui sample currently doesn't work, see the note about lib.rs here [here](https://github.com/floooh/sokol-rust/issues/4#issuecomment-1489105274), and [this issue](https://github.com/floooh/sokol-rust/issues/3) for a clean solution.
-
-To run the imgui example, you need to go into it's directory:
-```console
-cd examples/imgui
-cargo run
-```
+>NOTE: imgui support has been removed for now, the required cimgui submodule dependency caused trouble with
+> Github Actions. We'll need to solve this some other way in the future, and in a way that works for all
+> language bindings.
 
 ## Wasm/Emscripten
 To compile for wasm, you will need the emcc compiler which you can get at https://github.com/emscripten-core/emsdk

build.rs

@@ -267,54 +267,7 @@ fn make_sokol() {
     build.compile("sokol-rust");
 }
 
-fn make_imgui() {
-    let mut build = cc::Build::new();
-    let tool = build.try_get_compiler().unwrap();
-
-    let config = get_compilation_config(&tool);
-    const BASE_C_DIR: &str = "src/sokol/c/";
-
-    if !config.is_debug_build {
-        build.define("NDEBUG", None);
-        build.opt_level(2);
-    }
-
-    let _backend = select_sokol_backend(&mut build, &config);
-    let files = ["sokol_imgui.c"];
-
-    //
-    // include paths
-    //
-    build.include(BASE_C_DIR);
-    build.define("IMPL", None);
-
-    build.flag_if_supported("-Wno-unused-parameter").flag_if_supported("-Wno-missing-field-initializers");
-
-    for file in &files {
-        let file = format!("{BASE_C_DIR}{file}");
-
-        println!("cargo:rerun-if-changed={file}");
-
-        if config.build_target == BuildTarget::Macos {
-            build.flag("-ObjC");
-        }
-
-        build.file(file);
-    }
-
-    if config.debug_info_requested {
-        build.define("_DEBUG", None).define("SOKOL_DEBUG", None);
-    }
-    build.define("IMGUI_DISABLE_OBSOLETE_FUNCTIONS", None);
-
-    build.compile("sokol-rust-imgui");
-}
-
 fn main() {
     println!("cargo:rerun-if-changed=build.rs");
-
     make_sokol();
-
-    #[cfg(feature = "imgui")]
-    make_imgui();
 }