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-rw-r--r--erts/emulator/beam/erl_thr_progress.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_thr_progress.h b/erts/emulator/beam/erl_thr_progress.h
index 1416aa6166..1aeecf2b06 100644
--- a/erts/emulator/beam/erl_thr_progress.h
+++ b/erts/emulator/beam/erl_thr_progress.h
@@ -108,6 +108,8 @@ struct ErtsThrPrgrLaterOp_ {
#ifdef ERTS_SMP
+/* ERTS_THR_PRGR_VAL_FIRST should only be used when initializing... */
+#define ERTS_THR_PRGR_VAL_FIRST ((ErtsThrPrgrVal) 0)
#define ERTS_THR_PRGR_VAL_WAITING (~((ErtsThrPrgrVal) 0))
#define ERTS_THR_PRGR_INVALID (~((ErtsThrPrgrVal) 0))