［急］启动Apache时提示 libpthread.so.1版本错误，何解？

luck2002

当我安装好Apache后启动Apache，出现错误：
root>; /opt/apache/bin/apachectl sslstart
ld.so.1: /opt/apache/bin/httpd: fatal: libpthread.so.1: version `SUNW_1.4' not f
ound (required by file /opt/apache/bin/httpd)
Killed


用ldd命令查看，

root>; ldd /opt/apache/bin/httpd
libaprutil-0.so.0 =>; /opt/apache/lib/libaprutil-0.so.0
libexpat.so.0 =>; /opt/apache/lib/libexpat.so.0
libapr-0.so.0 =>; /opt/apache/lib/libapr-0.so.0
libsendfile.so.1 =>; /usr/lib/libsendfile.so.1
librt.so.1 =>; /usr/lib/librt.so.1
libm.so.1 =>; /usr/lib/libm.so.1
libsocket.so.1 =>; /usr/lib/libsocket.so.1
libnsl.so.1 =>; /usr/lib/libnsl.so.1
libresolv.so.2 =>; /usr/lib/libresolv.so.2
libpthread.so.1 =>; /usr/lib/libpthread.so.1
libpthread.so.1 (SUNW_1.4) =>; (version not found)
libc.so.1 =>; /usr/lib/libc.so.1
libdl.so.1 =>; /usr/lib/libdl.so.1
libaio.so.1 =>; /usr/lib/libaio.so.1
libmp.so.2 =>; /usr/lib/libmp.so.2
libthread.so.1 =>; /usr/lib/libthread.so.1
/usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1

在/usr/lib目录下是有libpthread.so.1文件的，可能是版本不对，请问如何安装高版本的libpthread.so.1，是否需要安装某个Package?
谢谢！