From 8e0e1d2dd3cd38d6acf4600f7431764404746c28 Mon Sep 17 00:00:00 2001
From: Bart van Strien <bart.bes@gmail.com>
Date: Sat, 6 Jun 2015 11:43:28 +0200
Subject: [PATCH] Clean up external symbols by changing visibility on linux/gcc

---
 src/Makefile | 4 ++--
 src/config.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index 727794b..fe6039f 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -13,8 +13,8 @@ WARN=-Wall -pedantic
 BSD_CFLAGS=-O2 -fPIC $(WARN) $(INCDIR) $(DEFS)
 BSD_LDFLAGS=-O -fPIC -shared $(LIBDIR)
 
-LNX_CFLAGS=-O2 -fPIC $(WARN) $(INCDIR) $(DEFS)
-LNX_LDFLAGS=-O -fPIC -shared $(LIBDIR)
+LNX_CFLAGS=-O2 -fPIC -fvisibility=hidden $(WARN) $(INCDIR) $(DEFS)
+LNX_LDFLAGS=-O -fPIC -fvisibility=hidden -Wl,--exclude-libs,ALL -shared $(LIBDIR)
 
 MAC_ENV=env MACOSX_DEPLOYMENT_TARGET='$(MACVER)'
 MAC_CFLAGS=-O2 -fno-common $(WARN) $(INCDIR) $(DEFS)
diff --git a/src/config.h b/src/config.h
index 5b6b47d..9e8113f 100644
--- a/src/config.h
+++ b/src/config.h
@@ -9,6 +9,8 @@
 
 #if defined(_WIN32)
 #define LSEC_API __declspec(dllexport) 
+#elif defined(__GNUC__)
+#define LSEC_API extern __attribute__((visibility ("default")))
 #else
 #define LSEC_API extern
 #endif