ftp://ftp.netbsd.org/pub/NetBSD/arch/sparc/X11R6

contains the following files:

-rw-r--r--    1 1045     500           160 Sep 16 14:09 CKSUMS
-rw-r--r--    1 1045     500       2526386 Sep 16 14:05 R6bin.tar.gz
-rw-r--r--    1 1045     500        292640 Sep 16 14:06 R6include.tar.gz
-rw-r--r--    1 1045     500       6984594 Sep 16 14:09 R6lib.tar.gz
-rw-r--r--    1 1045     500        511975 Sep 16 14:09 R6man.tar.gz
-rw-r--r--    1 1045     500           399 Sep 16 14:12 README
-rw-r--r--    1 1045     500          5025 Sep 16 14:09 X11R6pl12.diff

the diff is what i had to change from public patch 12 to build what
is in the files.

please let me know if you have any problems.

.mrg.