You're right, I delete /opt/csw/bin from my PATH and reconfigure with
--without-x and voila it compiled with no error, even with today's git
pull build.

[emacs]$printenv | grep csw
PATH=/usr/bin:/usr/sbin:/opt/csw/gcc4/bin

So currently I'm just narrow down the root cause,by checking my
configure, especially the core during configure stage.

I attached the log file of the compile. so this is not a common problem
and it's due to my system configuration. I'll check out that.