which compiler will it use?

[jerry zhai <jerry.z.mystery@xxxxxxxxx>]

Dear Sir,

            I was installing gcc on my linux, I found there is a
"xgcc" and "cc1" in the source tree, and meanwhile I got a system gcc
in directory /usr/bin. The make build stage completed successfully,
but when I type "make install",  it produced error like
           "cc1: unrecognized option `-Wold-style-definition'"

            I checked and found that it was because cc1 called by make
program was my system gcc, version 3.2 , which didn't support those
flags.  I wonder which  should called for installation process , the
accompany xgcc or the system gcc?  And how? Just modify the  PATH
variable ?

           Thanks a bunch for answering my question.


yours, Jerry