disable libunwind
link libexecinfo (for backtrace_symbols)

Index: rts/CMakeLists.txt
--- rts/CMakeLists.txt.orig
+++ rts/CMakeLists.txt
@@ -77,6 +77,7 @@ find_package_static(ZLIB REQUIRED)
 list(APPEND engineCommonLibraries ${IL_LIBRARIES} ${JPEG_LIBRARY} ${PNG_LIBRARY} ${TIFF_LIBRARY} ${GIF_LIBRARY})
 list(APPEND engineCommonLibraries 7zip ${SPRING_MINIZIP_LIBRARY} ${ZLIB_LIBRARY})
 list(APPEND engineCommonLibraries lua luasocket archives assimp gflags)
+list(APPEND engineCommonLibraries execinfo)
 if (ENABLE_STREFLOP)
 	list(APPEND engineCommonLibraries streflop)
 endif ()
@@ -102,15 +103,15 @@ if    (USE_TCMALLOC AND TCMALLOC_LIBRARY)
 endif ()
 
 
-if(UNIX)
-	find_package_static(Libunwind REQUIRED)
-	list(APPEND engineCommonLibraries ${LIBUNWIND_LIBRARIES})
-	if(LIBUNWIND_FOUND)
-		message(STATUS "Found libunwind libraries at ${LIBUNWIND_LIBRARIES}")
-	else ()
-		message(FATAL_ERROR "Couldn't find libunwind")
-	endif ()
-endif ()
+#if(UNIX)
+	#find_package_static(Libunwind REQUIRED)
+	#list(APPEND engineCommonLibraries ${LIBUNWIND_LIBRARIES})
+	#if(LIBUNWIND_FOUND)
+		#message(STATUS "Found libunwind libraries at ${LIBUNWIND_LIBRARIES}")
+	#else ()
+		#message(FATAL_ERROR "Couldn't find libunwind")
+	#endif ()
+#endif ()
 
 
 
