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-rw-r--r--compiler/cbits/unicode.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/cbits/unicode.c b/compiler/cbits/unicode.c
new file mode 100644
index 0000000000..c239e21c77
--- /dev/null
+++ b/compiler/cbits/unicode.c
@@ -0,0 +1,5 @@
+#if __GLASGOW_HASKELL__ < 605
+#if __GLASGOW_HASKELL__ != 604 || __GHC_PATCHLEVEL__ == 0
+#include "WCsubst.c"
+#endif
+#endif