mkCargoDerivation: set noCompressDebugSectionsSet on darwin (#941)

Author: ipetkov

CHANGELOG.md

@@ -10,6 +10,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 * **Breaking**: dropped compatibility for Nix versions below 2.31.2
 * **Breaking**: dropped compatibility for nixpkgs-25.05
 
+### Fixed
+* `mkCargoDerivation` will now set `noCompressDebugSectionsSet` to disable
+  compressing debug sections (when `remapPathPrefixHook` is active and running)
+  on platforms which do not support it
+
 ## [0.21.3] - 2025-12-04
 
 ### Added

lib/mkCargoDerivation.nix

@@ -100,6 +100,11 @@ chosenStdenv.mkDerivation (
     # access. Directory structure should basically follow the output of `cargo vendor`.
     cargoVendorDir = args.cargoVendorDir or (vendorCargoDeps args);
 
+    # compressing debug sections is only supported on elf formats (i.e. not darwin)
+    noCompressDebugSectionsSet =
+      args.noCompressDebugSectionsSet
+        or (lib.optionalString (chosenStdenv.hostPlatform.parsed.kernel.execFormat.name != "elf") "1");
+
     nativeBuildInputs =
       (args.nativeBuildInputs or [ ])
       ++ (crossEnv.nativeBuildInputs or [ ])