refactor(glfw): use C-unwind ABI

1 files changed, 16 insertions, 2 deletions

diff --git a/glfw/build.rs b/glfw/build.rs
index aaf4446..18ac677 100644
--- a/glfw/build.rs
+++ b/glfw/build.rs
@@ -1,8 +1,10 @@
 use std::env;
 use std::error::Error;
+use std::fs::OpenOptions;
+use std::io::Write;
 use std::path::PathBuf;
 
-use bindgen::MacroTypeVariation;
+use bindgen::{Abi, MacroTypeVariation};
 
 fn main() -> Result<(), Box<dyn Error>>
 {
@@ -17,12 +19,24 @@ fn main() -> Result<(), Box<dyn Error>>
         .allowlist_function("glfw.*")
         .allowlist_type("GLFW.*")
         .allowlist_var("GLFW.*")
+        .blocklist_type("GLFWglproc")
         .default_macro_constant_type(MacroTypeVariation::Signed)
+        .override_abi(Abi::CUnwind, ".*")
         .generate()?;
 
     let out_path = PathBuf::from(env::var("OUT_DIR")?);
 
-    bindings.write_to_file(out_path.join("bindings.rs"))?;
+    let bindings_file_path = out_path.join("bindings.rs");
+
+    bindings.write_to_file(&bindings_file_path)?;
+
+    let mut bindings_file = OpenOptions::new().append(true).open(bindings_file_path)?;
+
+    // Cannot be C-unwind :(
+    writeln!(
+        bindings_file,
+        "pub type GLFWglproc = ::std::option::Option<unsafe extern \"C\" fn()>;"
+    )?;
 
     Ok(())
 }