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authorSverker Eriksson <[email protected]>2016-01-08 15:22:52 +0100
committerSverker Eriksson <[email protected]>2016-01-08 16:45:37 +0100
commit1117dd3651be3cf763abf6fedcd4e06a6444fa04 (patch)
tree924e176e700b200e7623842aa06fad7569fc2ef0 /erts/emulator/beam/erl_nif.h
parent52fc89120c2f2237ec5191e72d844a6dca150040 (diff)
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erts: Allow -fvisibility=hidden for NIFs and drivers
as is strongly recommended by gcc man page. We use __attribute__ ((visibility("default"))) to make sure the init functions are properly exported.
Diffstat (limited to 'erts/emulator/beam/erl_nif.h')
-rw-r--r--erts/emulator/beam/erl_nif.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 6f1b7a7571..40c2ad6f08 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -250,7 +250,13 @@ extern TWinDynNifCallbacks WinDynNifCallbacks;
# define ERL_NIF_INIT_GLOB
# define ERL_NIF_INIT_ARGS void
# define ERL_NIF_INIT_BODY
-# define ERL_NIF_INIT_EXPORT
+# if defined(__GNUC__) && __GNUC__ >= 4
+# define ERL_NIF_INIT_EXPORT __attribute__ ((visibility("default")))
+# elif defined (__SUNPRO_C) && (__SUNPRO_C >= 0x550)
+# define ERL_NIF_INIT_EXPORT __global
+# else
+# define ERL_NIF_INIT_EXPORT
+# endif
#endif
#ifdef STATIC_ERLANG_NIF