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-rw-r--r--erts/emulator/beam/erl_nif.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 053f7673c4..eb69a8255c 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -137,8 +137,9 @@ typedef struct
unsigned char* data;
/* Internals (avert your eyes) */
- ERL_NIF_TERM bin_term;
void* ref_bin;
+ /* for future additions to be ABI compatible (same struct size) */
+ void* __spare__[1];
}ErlNifBinary;
#if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_))