1 files changed, 5 insertions, 0 deletions
diff --git a/mesonbuild/mlog.py b/mesonbuild/mlog.py
index b763e20..b75a267 100644
--- a/mesonbuild/mlog.py
+++ b/mesonbuild/mlog.py
@@ -145,6 +145,8 @@ def _log_error(severity, *args, **kwargs):
         args = (yellow('WARNING:'),) + args
     elif severity == 'error':
         args = (red('ERROR:'),) + args
+    elif severity == 'deprecation':
+        args = (red('DEPRECATION:'),) + args
     else:
         assert False, 'Invalid severity ' + severity
 
@@ -163,6 +165,9 @@ def error(*args, **kwargs):
 def warning(*args, **kwargs):
     return _log_error('warning', *args, **kwargs)
 
+def deprecation(*args, **kwargs):
+    return _log_error('deprecation', *args, **kwargs)
+
 def exception(e):
     log()
     if hasattr(e, 'file') and hasattr(e, 'lineno') and hasattr(e, 'colno'):