more meson stuff

Cargo.toml

@@ -9,3 +9,6 @@ gtk = { version = "0.9.2", package = "gtk4", features = ["v4_16"] }
 
 [build-dependencies]
 glib-build-tools = "0.20.0"
+
+[profile.dev]
+split-debuginfo = "unpacked"

meson.build

@@ -52,6 +52,10 @@ else
 endif
 
 cargo = find_program('cargo')
+cargo_env = environment()
+cargo_env.set('MESON_BUILD_ROOT', meson.project_build_root())
+cargo_env.append('RUSTFLAGS', '-L ' + fs.parent(audrey_c.full_path()), separator: ' ')
+
 custom_target(
   'cargo-build',
   build_by_default: true,
@@ -61,19 +65,14 @@ custom_target(
     blueprints,
   ],
   console: true,
+  # means nothing (always stale and uncopied), we can't cp since env: drops the /bin/sh wrapper
   output: meson.project_name(),
   command: [
-    'env',
-    'RUSTFLAGS=-L ' + fs.parent(audrey_c.full_path()),
-    'MESON_BUILD_ROOT=' + meson.project_build_root(),
     cargo,
     'build',
     rust_args,
     '--manifest-path', meson.project_source_root() / 'Cargo.toml',
     '--target-dir', meson.project_build_root() / 'cargo-target',
-    '&&',
-    'cp',
-    'cargo-target' / rust_target / meson.project_name(),
-    '@OUTPUT@',
   ],
+  env: cargo_env,
 )