- change UNASSIGNED_SYSTEM_ADDRESS and UNASSIGNED_RAKNET_GUID to be d…

…eclared external so to remove the need for including/dependent compile units to also include types.h (which is quite a burden due to the windows.h inclusion, f.e.) - facebookarchive#130

- add required OpenSSL dependency to CMake (#222)

CMakeLists.txt

@@ -42,10 +42,14 @@ IF (WIN32 AND NOT UNIX)
 	string(REPLACE "\\" "/" PROGRAMFILESX86 "${PROGRAMFILESX86}")
 ENDIF(WIN32 AND NOT UNIX)
 
+# add package dependencies
+find_package(OpenSSL 1.0.0 REQUIRED)
+set(SLIKENET_LIBRARY_LIBS OpenSSL::Crypto OpenSSL::SSL)
+
 IF (WIN32 AND NOT UNIX)
-	set(SLIKENET_LIBRARY_LIBS ws2_32.lib)
+	set(SLIKENET_LIBRARY_LIBS ${SLIKENET_LIBRARY_LIBS} ws2_32.lib)
 ELSE(WIN32 AND NOT UNIX)
-	set(SLIKENET_LIBRARY_LIBS pthread)
+	set(SLIKENET_LIBRARY_LIBS ${SLIKENET_LIBRARY_LIBS} pthread)
 ENDIF(WIN32 AND NOT UNIX)
 
 # enable C++11 language support for GCC

Source/include/slikenet/types.h

@@ -338,8 +338,8 @@ struct RAK_DLL_EXPORT RakNetGUID
 //	0xFFFFFFFF, 0xFFFF
 //};
 #ifndef SWIG
-const SystemAddress UNASSIGNED_SYSTEM_ADDRESS;
-const RakNetGUID UNASSIGNED_RAKNET_GUID((uint64_t)-1);
+extern const SystemAddress UNASSIGNED_SYSTEM_ADDRESS;
+extern const RakNetGUID UNASSIGNED_RAKNET_GUID;
 #endif
 //{
 //	{0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}

Source/src/RakNetTypes.cpp

@@ -779,3 +779,12 @@ unsigned long RakNetGUID::ToUint32( const RakNetGUID &g )
 {
 	return ((unsigned long) (g.g >> 32)) ^ ((unsigned long) (g.g & 0xFFFFFFFF));
 }
+
+namespace SLNet
+{
+	// initialization list
+#ifndef SWIG
+	const SystemAddress UNASSIGNED_SYSTEM_ADDRESS;
+	const RakNetGUID UNASSIGNED_RAKNET_GUID((uint64_t)-1);
+#endif
+}