MPlayer-1.0rc2安装不了

当在中断输入./configure --enable-gui时，显示如何：
Detected operating system: Linux
Detected host architecture: i386
Checking for cc version ... not found
Checking for gcc version ... not found
Checking for gcc-3.4 version ... not found
Checking for gcc-3.3 version ... not found
Checking for gcc-3.2 version ... not found
Checking for gcc-3.1 version ... not found
Checking for gcc3 version ... not found
Checking for gcc-3.0 version ... not found
Checking for cc version ... not found

*** Please downgrade/upgrade C compiler to version gcc-2.95, 3.x or 4.x! ***

You are not using a supported compiler. We do not have the time to make sure
everything works with compilers other than the ones we use. Use either the
same compiler as we do, or use --disable-gcc-check but DO *NOT* REPORT BUGS
unless you can reproduce them after recompiling with a 2.95.x or 3/4.x version!

Note for gcc 2.96 users: Some versions of this compiler are known to miscompile
mplayer and lame (which is used for mencoder). If you get compile errors,
first upgrade to the latest 2.96 release (minimum 2.96-85) and try again.
If the problem still exists, try with gcc 3.x (or 2.95.x) *BEFORE* reporting
bugs!

GCC 2.96 IS NOT AND WILL NOT BE SUPPORTED BY US !


Error: Bad gcc version

Check "configure.log" if you do not understand why it failed.
这是什么原因？