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-rw-r--r--scripts/decodetree.py6
1 files changed, 5 insertions, 1 deletions
diff --git a/scripts/decodetree.py b/scripts/decodetree.py
index a8a6cb69cd..e8b72da3a9 100644
--- a/scripts/decodetree.py
+++ b/scripts/decodetree.py
@@ -134,6 +134,10 @@ def error_with_file(file, lineno, *args):
     global output_file
     global output_fd
 
+    # For the test suite expected-errors case, don't print the
+    # string "error: ", so they don't turn up as false positives
+    # if you grep the meson logs for strings like that.
+    end = 'error: ' if not testforerror else 'detected: '
     prefix = ''
     if file:
         prefix += f'{file}:'
@@ -141,7 +145,7 @@ def error_with_file(file, lineno, *args):
         prefix += f'{lineno}:'
     if prefix:
         prefix += ' '
-    print(prefix, end='error: ', file=sys.stderr)
+    print(prefix, end=end, file=sys.stderr)
     print(*args, file=sys.stderr)
 
     if output_file and output_fd: