modules/rust: Add support for dependencies in bindgen

This is needed for cases where we need external C headers, which are
passed to clang.

6 files changed, 80 insertions, 1 deletions

diff --git a/test cases/rust/12 bindgen/dependencies/clib2.c b/test cases/rust/12 bindgen/dependencies/clib2.c
new file mode 100644
index 0000000..63d3e0a
--- /dev/null
+++ b/test cases/rust/12 bindgen/dependencies/clib2.c
@@ -0,0 +1,5 @@
+#include "internal_dep.h"
+
+int64_t add64(const int64_t first, const int64_t second) {
+    return first + second;
+}
diff --git a/test cases/rust/12 bindgen/dependencies/external_dep.h b/test cases/rust/12 bindgen/dependencies/external_dep.h
new file mode 100644
index 0000000..284661b
--- /dev/null
+++ b/test cases/rust/12 bindgen/dependencies/external_dep.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifer: Apache-2.0 */
+/* Copyright © 2022 Intel Corporation */
+
+#include <zlib.h>
+
+struct External {
+    z_stream * stream;
+};
diff --git a/test cases/rust/12 bindgen/dependencies/internal_dep.h b/test cases/rust/12 bindgen/dependencies/internal_dep.h
new file mode 100644
index 0000000..b0629de
--- /dev/null
+++ b/test cases/rust/12 bindgen/dependencies/internal_dep.h
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright © 2022 Intel Corporation
+
+#include "gen.h"
+
+int64_t add64(const int64_t, const int64_t);
diff --git a/test cases/rust/12 bindgen/dependencies/internal_main.rs b/test cases/rust/12 bindgen/dependencies/internal_main.rs
new file mode 100644
index 0000000..4890b43
--- /dev/null
+++ b/test cases/rust/12 bindgen/dependencies/internal_main.rs
@@ -0,0 +1,16 @@
+// SPDX-license-identifer: Apache-2.0
+// Copyright © 2021 Intel Corporation
+
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+
+include!("internal_dep.rs");
+
+use std::convert::TryInto;
+
+fn main() {
+    unsafe {
+        std::process::exit(add64(0, 0).try_into().unwrap_or(5));
+    };
+}
diff --git a/test cases/rust/12 bindgen/dependencies/meson.build b/test cases/rust/12 bindgen/dependencies/meson.build
new file mode 100644
index 0000000..37e5a42
--- /dev/null
+++ b/test cases/rust/12 bindgen/dependencies/meson.build
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: Apache-2.0
+# Copyright © 2022 Intel Corporation
+
+dep_zlib = dependency('zlib', required : false, disabler : true)
+
+external_dep_rs = rust.bindgen(
+  input : 'external_dep.h',
+  output : 'external_dep.rs',
+  dependencies : dep_zlib
+)
+
+external_dep = static_library(
+  'external_dep',
+  [external_dep_rs],
+  dependencies : dep_zlib.partial_dependency(links : true),
+)
+
+rust.test('external dep', external_dep)
+
+int_dep = declare_dependency(
+  sources : [gen_h, gen2_h],
+  include_directories : include_directories('..'),
+)
+
+internal_dep_rs = rust.bindgen(
+  input : 'internal_dep.h',
+  output : 'internal_dep.rs',
+  dependencies : int_dep,
+)
+
+c_lib2 = static_library(
+  'clib2',
+  'clib2.c',
+  dependencies : int_dep,
+)
+
+rust_bin_int_dep = executable(
+  'rust_bin_int_dep',
+  structured_sources(['internal_main.rs', internal_dep_rs]),
+  link_with : [c_lib, c_lib2],
+)
+
+test('generated header dependency', rust_bin_int_dep)
diff --git a/test cases/rust/12 bindgen/meson.build b/test cases/rust/12 bindgen/meson.build
index b88aca2..c05cc06 100644
--- a/test cases/rust/12 bindgen/meson.build
+++ b/test cases/rust/12 bindgen/meson.build
@@ -1,5 +1,5 @@
 # SPDX-license-identifer: Apache-2.0
-# Copyright © 2021 Intel Corporation
+# Copyright © 2021-2022 Intel Corporation
 
 project('rustmod bindgen', ['c', 'rust'], meson_version : '>= 0.63')
 
@@ -80,3 +80,4 @@ rust_bin2 = executable(
 test('generated header', rust_bin2)
 
 subdir('sub')
+subdir('dependencies')