make newer libutils happy

git-svn-id: http://svn.net-core.org/repos/t-engine4@2174 51575b47-30f0-44d4-a5cc-537603b46e54

premake4.lua

@@ -106,7 +106,7 @@ configuration "windows"
 	defines { [[TENGINE_HOME_PATH='"T-Engine"']], 'SELFEXE_WINDOWS' }
 
 configuration "linux"
-	links { "SDL", "SDL_ttf", "SDL_image", "SDL_mixer", "GL", "GLU" }
+	links { "SDL", "SDL_ttf", "SDL_image", "SDL_mixer", "GL", "GLU", "m", "pthread" }
 	defines { [[TENGINE_HOME_PATH='".t-engine"']], 'SELFEXE_LINUX' }
 
 	postbuildcommands {