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-rw-r--r--src/engine/SCons/cpp.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/engine/SCons/cpp.py b/src/engine/SCons/cpp.py
index f282ba78..2e20017d 100644
--- a/src/engine/SCons/cpp.py
+++ b/src/engine/SCons/cpp.py
@@ -379,7 +379,8 @@ class PreProcessor(object):
return None
def read_file(self, file):
- return open(file).read()
+ with open(file) as f:
+ return f.read()
# Start and stop processing include lines.