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-rw-r--r--erts/emulator/beam/erl_nif.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index c12ba4d554..5b93c2398e 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -46,6 +46,18 @@
#define ERL_NIF_MAJOR_VERSION 2
#define ERL_NIF_MINOR_VERSION 6
+/*
+ * The emulator will refuse to load a nif-lib with a major version
+ * lower than ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD. The load
+ * may however fail if user have not removed use of deprecated
+ * symbols.
+ *
+ * The ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD have to allow
+ * loading of nif-libs built at least two major OTP releases
+ * ago.
+ */
+#define ERL_NIF_MIN_REQUIRED_MAJOR_VERSION_ON_LOAD 2
+
#include <stdlib.h>
#ifdef SIZEOF_CHAR