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-rw-r--r--testsuite/driver/runtests.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/testsuite/driver/runtests.py b/testsuite/driver/runtests.py
index 0d458924d0..5510adfdef 100644
--- a/testsuite/driver/runtests.py
+++ b/testsuite/driver/runtests.py
@@ -42,6 +42,9 @@ import cpu_features
os.environ['TERM'] = 'vt100'
ghc_env['TERM'] = 'vt100'
+# Ensure that GHC doesn't go looking for environment files. See #21365.
+ghc_env['GHC_ENVIRONMENT'] = "-"
+
global config
config = getConfig() # get it from testglobals
config.validate()