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-rw-r--r--testsuite/tests/driver/3674_pre.hs5
1 files changed, 5 insertions, 0 deletions
diff --git a/testsuite/tests/driver/3674_pre.hs b/testsuite/tests/driver/3674_pre.hs
new file mode 100644
index 0000000000..aef9cef9c7
--- /dev/null
+++ b/testsuite/tests/driver/3674_pre.hs
@@ -0,0 +1,5 @@
+import System.Environment
+main = do
+ [_,inf,outf] <- getArgs
+ s <- readFile inf
+ writeFile outf ("{-# LANGUAGE GADTs #-}\n" ++ s)