Merging r208908:

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r208908 | thomas.stellard | 2014-05-15 15:50:25 -0400 (Thu, 15 May 2014) | 7 lines

autoconf: Fix libLLVM-Major-Minor-Patch.so symlink

The symlink needs to point to a relative path, so we don't break
building in a chroot.

Tested-by: Laurent Carlier <lordheavym@gmail.org>

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llvm-svn: 208917