g++ 4.6 and suggested flags

[denis campredon]

downloaded gcc 4.6, and tried it.

And I found something a little strange when I compile a file :

g++ displayboard.cpp -lncurses -c
displayboard.cpp: In constructor ‘DisplayBoard::DisplayBoard(int, int)’:
displayboard.cpp:47:22: error: invalid conversion from ‘void (*
(*)())(int)’ to ‘sighandler_t’ [-fpermissive]
displayboard.cpp:41:16: error:   initializing argument 2 of ‘void (*
signal(int, sighandler_t))(int)’ [-fpermissive]


So, I tried to compile with the flag suggested


g++ displayboard.cpp -lncurses -c -fpermissive
displayboard.cpp: In constructor ‘DisplayBoard::DisplayBoard(int, int)’:
displayboard.cpp:47:22: warning: invalid conversion from ‘void (*
(*)())(int)’ to ‘sighandler_t’ [-fpermissive]
displayboard.cpp:41:16: warning:   initializing argument 2 of ‘void (*
signal(int, sighandler_t))(int)’ [-fpermissive]



So I was wondering if it was normal to gcc to suggest the same flag,
who can't change the output for the second case.