byteswap.c and endian.c for gcc?

["Sung-Gu" <parksg@xxxxxxxxxxx>]

How can I get byteswap.c, endian.c and some related files for an aleady
installed gcc library?
The aleady installed gcc is gcc-3.4.2 for sol8 sparc on www.sunfreeware.com.
But there isn't include/bits/varisouc_files.h.  :(

What do I do to solve my problem?

Thanks in advance,

Sung-Gu