rust: apply global, project, and environment C args to bindgen

This means that arguments set via `add_global_arguments`,
`add_project_arguments` and by either the `-Dc_args` or `CFLAGS` are
applied to bindgen as well. This can be important when, among other
things, #defines are set via these mechanisms.

Fixes: #12065

3 files changed, 29 insertions, 0 deletions

diff --git a/test cases/rust/12 bindgen/src/global-project.h b/test cases/rust/12 bindgen/src/global-project.h
new file mode 100644
index 000000000..6084e8ed6
--- /dev/null
+++ b/test cases/rust/12 bindgen/src/global-project.h
@@ -0,0 +1,10 @@
+#ifndef GLOBAL_ARG
+char * success(void);
+#endif
+#ifndef PROJECT_ARG
+char * success(void);
+#endif
+#ifndef CMD_ARG
+char * success(void);
+#endif
+int success(void);
diff --git a/test cases/rust/12 bindgen/src/global.c b/test cases/rust/12 bindgen/src/global.c
new file mode 100644
index 000000000..10f6676f7
--- /dev/null
+++ b/test cases/rust/12 bindgen/src/global.c
@@ -0,0 +1,5 @@
+#include "src/global-project.h"
+
+int success(void) {
+    return 0;
+}
diff --git a/test cases/rust/12 bindgen/src/global.rs b/test cases/rust/12 bindgen/src/global.rs
new file mode 100644
index 000000000..4b70b1ecc
--- /dev/null
+++ b/test cases/rust/12 bindgen/src/global.rs
@@ -0,0 +1,14 @@
+// SPDX-license-identifer: Apache-2.0
+// Copyright © 2023 Intel Corporation
+
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+
+include!("global-project.rs");
+
+fn main() {
+    unsafe {
+        std::process::exit(success());
+    };
+}