sokoban.cpp: In function 'int main()': sokoban.cpp:26: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sokoban.cpp:26: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sokoban.cpp:50: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sokoban.cpp:50: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x