想从源代码编译安装realplayer，打补丁时出现如下错误

i659

想从源代码编译安装realplayer，用的是realplay-10.0.4-source.tar.bz2
打补丁时出现如下错误:


[root@dhcppc0 realplay-10.0.4]# patch -Np1 < ../realplayer/files/realplayer-10.0.4-sem_t.patch
can't find file to patch at input line 3
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:realplay-10.0.4-source.tar.bz2
--------------------------
|--- common/system/pub/platform/unix/pthreadthreads.h_old       2004-11-14 10:54:35.925645344 +0900
|+++ common/system/pub/platform/unix/pthreadthreads.h   2004-11-14 10:55:19.110080312 +0900
--------------------------
File to patch: