rust: Fix RUSTFLAGS being added as prefixed linker flags

mesonbuild/compilers/rust.py

@@ -451,7 +451,9 @@ def get_allow_undefined_link_args(self) -> T.List[str]:
         return rustc_link_args(super().get_allow_undefined_link_args())
 
     def get_build_link_args(self, target: BuildTarget, build: build.Build) -> T.List[str]:
-        return rustc_link_args(super().get_build_link_args(target, build))
+        return rustc_link_args(build.get_project_link_args(self, target)
+                               + build.get_global_link_args(self, self.for_machine)) \
+            + self.environment.coredata.get_external_link_args(self.for_machine, self.get_language())
 
     def get_target_link_args(self, target: 'BuildTarget') -> T.List[str]:
         return rustc_link_args(super().get_target_link_args(target))

test cases/rust/37 rustflags env/clippy.toml

@@ -0,0 +1 @@
+blacklisted-names = ["foo"]

test cases/rust/37 rustflags env/meson.build

@@ -0,0 +1,28 @@
+project('rustprog', 'rust', default_options : ['b_ndebug=true'])
+
+e = executable('rust-program', 'prog.rs',
+  install : true
+)
+test('rusttest', e)
+
+e = executable('rust-dynamic', 'prog.rs',
+  override_options: {'rust_dynamic_std': true},
+  install : true
+)
+test('rusttest-dynamic', e)
+
+subdir('subdir')
+
+# this should fail due to debug_assert
+test(
+  'debug_assert_on',
+  executable(
+    'rust-program2',
+    'prog.rs',
+    override_options : ['b_ndebug=false'],
+  ),
+  should_fail : true,
+)
+
+rustc = meson.get_compiler('rust')
+assert(rustc.run('fn main(){}').returncode() == 0)

test cases/rust/37 rustflags env/prog.rs

@@ -0,0 +1,5 @@
+fn main() {
+    let foo = "rust compiler is working";
+    debug_assert!(false, "debug_asserts on!");
+    println!("{}", foo);
+}

test cases/rust/37 rustflags env/subdir/meson.build

@@ -0,0 +1,2 @@
+e = executable('rust-program2', 'prog.rs', install : true)
+test('rusttest2', e)

test cases/rust/37 rustflags env/subdir/prog.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("rust compiler is working");
+}

test cases/rust/37 rustflags env/test.json

@@ -0,0 +1,13 @@
+{
+  "env": {
+    "RUSTFLAGS": "-C force-frame-pointers=yes"
+  },
+  "installed": [
+    {"type": "exe", "file": "usr/bin/rust-program"},
+    {"type": "pdb", "file": "usr/bin/rust-program"},
+    {"type": "exe", "file": "usr/bin/rust-program2"},
+    {"type": "pdb", "file": "usr/bin/rust-program2"},
+    {"type": "exe", "file": "usr/bin/rust-dynamic"},
+    {"type": "pdb", "file": "usr/bin/rust-dynamic"}
+  ]
+}