Several changes: * Get rid of variables that are duplicates of autoconf variables. * Rename BUILD_* to PROJ_* * Define some project related install locations * Don't assume LLVM's configured values are the project's
Several changes:
* Get rid of variables that are duplicates of autoconf variables.
* Rename BUILD_* to PROJ_*
* Define some project related install locations
* Don't assume LLVM's configured values are the project's


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@19589 91177308-0d34-0410-b5e6-96231b3b80d8

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