About gcc

[mike stump]

> Date: Tue, 11 Jun 2002 10:25:37 +0800
> From: =?GB2312?Q?=B6=AD=BA=C6(Houston)?= <dh@yamido.com>
> To: "gcc@gnu.org" <gcc@gnu.org>

> Our project would be platform independent, but the most user's
> platform is win32.  We don't like ms$'s vc7, so we want to use gcc
> to compile it under win32.  We would use only ANSI C.

Ok.

> Then my questions are:
> 
> 1.  Our project is commercial.  Must we open the source?

No.  For example, you can use mingw32.

> 2.  Which is more efficient, the binary compilered by vc7 or by
> win32 gcc?

You'd have to benchmark your own application under both to determine
that.  I suspect quite a few programs are within 5% either way.  5% is
like asking, what is faster, a 1.8GHz machine or 1.89GHz machine.  The
answer is, a 2.0 GHz machine is faster, no matter.