Merge branch 'master' into lk-control-base

.github/CHANGELOG.md

@@ -119,6 +119,9 @@
 
 ### Bug fixes
 
+* Fix build failure for Lightning-Kokkos editable installation on MacOS due to `liblightning_kokkos_catalyst.so` copy.
+  [(#947)](https://github.com/PennyLaneAI/pennylane-lightning/pull/947)
+
 * Fix missing `liblightning_kokkos_catalyst.so` in Lightning-Kokkos editable installation.
   [(#945)](https://github.com/PennyLaneAI/pennylane-lightning/pull/945)
 

setup.py

@@ -158,9 +158,11 @@ def build_extension(self, ext: CMakeExtension):
 
         # Ensure that catalyst shared object is copied to the build directory for pip editable install
         if backend in ("lightning_kokkos"):
-            source = os.path.join(f"{extdir}", f"lib{backend}_catalyst.so")
-            destination = os.path.join(os.getcwd(), "build")
-            shutil.copy(source, destination)
+            if platform.system() in ["Linux", "Darwin"]:
+                shared_lib_ext = {"Linux": ".so", "Darwin": ".dylib"}[platform.system()]
+                source = os.path.join(f"{extdir}", f"lib{backend}_catalyst{shared_lib_ext}")
+                destination = os.path.join(os.getcwd(), "build")
+                shutil.copy(source, destination)
 
 with open(os.path.join("pennylane_lightning", "core", "_version.py"), encoding="utf-8") as f:
     version = f.readlines()[-1].split()[-1].strip("\"'")