handle-built-files.py: Specify file encoding on generated files

The default file encoding is platform dependent in Python.
Better specify which encoding is preferred.

1 files changed, 2 insertions, 5 deletions

diff --git a/tools/build_scripts/handle-built-files.py b/tools/build_scripts/handle-built-files.py
index e22600b4..c96de2ad 100755
--- a/tools/build_scripts/handle-built-files.py
+++ b/tools/build_scripts/handle-built-files.py
@@ -83,11 +83,8 @@ def build_from_m4():
     '-I', include_dir,
     input_file,
   ]
-  output_file_obj = open(output_file, mode='w')
-  result = subprocess.run(cmd, stdout=output_file_obj)
-  output_file_obj.close()
-
-  return result.returncode
+  with open(output_file, mode='w', encoding='utf-8') as output_file_obj:
+    return subprocess.run(cmd, stdout=output_file_obj).returncode
 
 # Invoked from meson.add_install_script().
 def install_built_h_files():