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+- Feature Name: cbool
+- Start Date: Mon Mar  9 00:16:53 CET 2015
+- RFC PR: (leave this empty)
+- Rust Issue: (leave this empty)
+
+# Summary
+
+Specify that `bool` is compatible with the `_Bool` C type.
+
+# Motivation
+
+You cannot safely call ffi functions with boolean arguments without a compatible
+type.
+
+# Detailed design
+
+Specify that `bool` is compatible with the `_Bool` C type.
+
+# Drawbacks
+
+None.
+
+# Alternatives
+
+Define `_Bool` as a platform dependent integer type. This is unsafe because the behavior is supposedly undefined if you pass a value other than 0 or 1 to such a function.
+
+# Unresolved questions
+
+None.