About gcc

[董浩 (Houston)]

hi:

   Our project would be platform independence,but the most user's platform is win32. We don't like ms$'s vc7,So we want to use gcc to compiler it under win32.We would use only ANSI c.
Then my questions are:
1.Our project is commercial.Must we open the source?
2.Which is more efficient,the binary compilered by vc7 or by win32 gcc? After all,vc7 comes from the OS's manufacturer~~~~~~~~~~~

      thanks!
　　

regards
 				
　　　　　　　　　　　　　　董浩(Houston)
　　　　　　　　　　　　　　dh@yamido.com
　　　　　　　　　　　　　　　　　2002-06-11