Sets default symbol visibility to hidden. Resolves #74

Author: jonesmz

Source/CMake/HelperMethods.cmake

@@ -582,7 +582,7 @@ function(add_common_flags target)
 	elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "AppleClang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
 		# Note: Optionally add -ffunction-sections, -fdata-sections, but with linker option --gc-sections
 		# TODO: Use link-time optimization -flto. Might require non-default linker.
-		set_property(TARGET ${target} APPEND PROPERTY COMPILE_OPTIONS -Wall -Wextra -Wno-unused-parameter -fPIC -fno-strict-aliasing -msse4.1)
+		set_property(TARGET ${target} APPEND PROPERTY COMPILE_OPTIONS -Wall -Wextra -Wno-unused-parameter -fPIC -fno-strict-aliasing -msse4.1 -fvisibility=hidden -fvisibility-inlines-hidden)
 
 		if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
 			set_property(TARGET ${target} APPEND PROPERTY COMPILE_OPTIONS -fno-ms-compatibility)

Source/Foundation/bsfUtility/Allocators/BsMemoryAllocator.h

@@ -100,25 +100,24 @@ namespace bs
 	 * Thread safe class used for storing total number of memory allocations and deallocations, primarily for statistic
 	 * purposes.
 	 */
-	class MemoryCounter
+	class BS_UTILITY_EXPORT MemoryCounter
 	{
 	public:
-		static BS_UTILITY_EXPORT uint64_t getNumAllocs()
+		static uint64_t getNumAllocs()
 		{
 			return Allocs;
 		}
 
-		static BS_UTILITY_EXPORT uint64_t getNumFrees()
+		static uint64_t getNumFrees()
 		{
 			return Frees;
 		}
 
 	private:
 		friend class MemoryAllocatorBase;
 
-		// Threadlocal data can't be exported, so some magic to make it accessible from MemoryAllocator
-		static BS_UTILITY_EXPORT void incAllocCount() { ++Allocs; }
-		static BS_UTILITY_EXPORT void incFreeCount() { ++Frees; }
+		static void incAllocCount() { ++Allocs; }
+		static void incFreeCount() { ++Frees; }
 
 		static BS_THREADLOCAL uint64_t Allocs;
 		static BS_THREADLOCAL uint64_t Frees;