Add error handling

Author: limbonaut

SConstruct

@@ -272,8 +272,14 @@ def separate_debug_symbols(target, source, env):
         if target_name.endswith(".dylib"):
             target_name = os.path.splitext(target_name)[0]
         dsym_path = f"{out_dir}/dSYMs/{target_name}.dSYM"
-        os.system(f"dsymutil \"{target_path}\" -o \"{dsym_path}\"")
-        os.system(f"strip -u -r \"{target_path}\"")
+        err = os.system(f"dsymutil \"{target_path}\" -o \"{dsym_path}\"")
+        if err != 0:
+            print(f"ERROR: Failed to split debug symbols (exit code {err})")
+            Exit(1)
+        err = os.system(f"strip -u -r \"{target_path}\"")
+        if err != 0:
+            print(f"ERROR: Failed to strip debug symbols (exit code {err})")
+            Exit(1)
 
 if env.get("separate_debug_symbols", True):
     from SCons.Script import Action