To get emacs-21.2 (or emacs-20.7) to compile on sparc-sun-solaris2.8 
using gcc-3.2 I have had to create a src/s/sol2-8.h file, attached.  At 
least on our system, bcopy, bcmp, and bzero exist and the #defines in 
src/s/usg5-4.h for these break the compile.  To use this file, the 
string "sol2-8" has to be added to configure.in after the sol2-5 case as:

      *-sunos5.8* | *-solaris2.8* )

        opsys=sol2-8

        NON_GNU_CPP=/usr/ccs/lib/cpp

        RANLIB="ar -ts"

        ;;

Perhaps there is a better way to achieve the same ends, but I am 
ignorant of it.

Peace, Lee.

-- 

Lee Newberg <lee.newberg@wadsworth.org>
(518) 473-8426