From 1117dd3651be3cf763abf6fedcd4e06a6444fa04 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Fri, 8 Jan 2016 15:22:52 +0100
Subject: 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.
---
lib/crypto/c_src/crypto_callback.c | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'lib/crypto')
diff --git a/lib/crypto/c_src/crypto_callback.c b/lib/crypto/c_src/crypto_callback.c
index aab43232c9..af9545bd63 100644
--- a/lib/crypto/c_src/crypto_callback.c
+++ b/lib/crypto/c_src/crypto_callback.c
@@ -43,6 +43,10 @@
#ifdef __WIN32__
# define DLLEXPORT __declspec(dllexport)
+#elif defined(__GNUC__) && __GNUC__ >= 4
+# define DLLEXPORT __attribute__ ((visibility("default")))
+#elif defined (__SUNPRO_C) && (__SUNPRO_C >= 0x550)
+# define DLLEXPORT __global
#else
# define DLLEXPORT
#endif
--
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