Honor non-empty CMAKE_BUILD_TYPE as controlling DEBUG var. This includes not only the initial default but also changing the value.
Honor non-empty CMAKE_BUILD_TYPE as controlling DEBUG var.
This includes not only the initial default but also changing the value.

git-svn-id: ed337ca7cdb08c0ba29d8fe58632bb7686892c2d@1758 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6

rnk/dynamorio,rnk/dynamorio,rnk/dynamorio,rnk/dynamorio,rnk/dynamorio