clang

["Andrey N. Oktyabrski" <ano@xxxxxxxxx>]

I have read the compilers.conf manual page and want to try instructions 
from there:
$ fetch http://leaf.dragonflybsd.org/~swildner/world_clang.diff
world_clang.diff                              100% of 1555  B  868 kBps
$ patch -p1 <world_clang.diff
...
Patching file lib/csu/i386/Makefile.csu using Plan A...
Hunk #1 failed at 1.
1 out of 1 hunks failed--saving rejects to lib/csu/i386/Makefile.csu.rej
...